GMC Yukon XL — T1XX (2021–2027)

GM's own lists for this generation are the GM Upfitter electrical body-builder lists for 2022, 2023 (filed by GM Upfitter for 2023 and 2024, dated 2023 here) and 2026, which cover the Yukon and the Yukon XL together and are the same three lists the Yukon doc reads, and the Yukon XL / Denali fleet order guides for 2025, 2026 and 2027, whose trim availability is given in Notes (O optional, S standard or included in the trim's equipment group). The XL guides name the Elevation, AT4, AT4 Ultimate, Denali and Denali Ultimate trims, the 2022 list names SLE, SLT, AT4 and Denali trim packages and the 2023 list adds Denali Ultimate, and the Arlington, Texas plant code (ARL) appears in all three body-builder lists. The XL guides do not print the Yukon-only codes ABV, ACS, AHX, AJV, AL4, C6C, KUF, 02N or UQH (UQH is included with the Yukon-only ABV package), so they have no rows here. No list in the archive covers 2021 or 2024, so a year missing from the Years column means no source was read for it; NICB's 2021 and 2026 VIN manuals show the Yukon XL trims for those years.

Codes

Engines

Code	Description	Years	Models/Notes	Confidence
L84	Engine, 5.3L EcoTec3 V8 with Dynamic Fuel Management, direct injection and variable valve timing	2022–2023, 2025–2027	2027: Elevation, AT4: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.9 · 2026 gmc yukon xl denali fleet order guide, p.9 · 2027 gmc yukon xl fleet order guide, p.9	confirmed
L87	Engine, 6.2L EcoTec3 V8 with Dynamic Fuel Management, direct injection and variable valve timing	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali, Denali Ultimate: S; AT4: O; the 2022 and 2023 body-builder lists print it as a 6.2L gasoline V8, direct injection, Dynamic Fuel Management ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.19 · 2026 gmc yukon xl denali fleet order guide, p.20 · 2027 gmc yukon xl fleet order guide, p.18	confirmed
LM2	Engine, 3.0L Duramax turbo-diesel inline-six	2022–2023	the 2022 and 2023 body-builder lists print it as a 3.0L turbo-diesel six-cylinder with VGT turbocharger; the 2025–2027 guides print LZ0 for the Duramax 3.0L ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11	confirmed
LZ0	Engine, 3.0L Duramax turbo-diesel inline-six	2025–2027	2027: O on all trims; the 2025–2027 guides print LZ0 for the 3.0L Duramax; the 2022 and 2023 body-builder lists print the 3.0L turbo-diesel as LM2 ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.40 · 2026 gmc yukon xl denali fleet order guide, p.41 · 2027 gmc yukon xl fleet order guide, p.36	confirmed

Transmissions

Code	Description	Years	Models/Notes	Confidence
MHS	Transmission, 10-speed automatic (10L80, Gen 1)	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.11 · 2026 gmc yukon xl denali fleet order guide, p.11 · 2027 gmc yukon xl fleet order guide, p.11	confirmed
MQC	Transmission, 10-speed automatic (10L80, Gen 2)	2022–2023, 2025–2027	2027: O on all trims; the 2025–2027 guides pair it with the 3.0L Duramax diesel (LZ0) only ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.81 · 2026 gmc yukon xl denali fleet order guide, p.82 · 2027 gmc yukon xl fleet order guide, p.73	confirmed
NP0	Transfer case, active, single-speed	2022–2023, 2025–2027	2027: Elevation, Denali: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.10 · 2026 gmc yukon xl denali fleet order guide, p.11 · 2027 gmc yukon xl fleet order guide, p.10	confirmed
NQH	Transfer case, active, two-speed, with neutral position for dinghy towing	2022–2023, 2025–2027	2027: AT4, AT4 Ultimate, Denali Ultimate: S; Elevation, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.19 · 2026 gmc yukon xl denali fleet order guide, p.20 · 2027 gmc yukon xl fleet order guide, p.19	confirmed

Axles

Code	Description	Years	Models/Notes	Confidence
F48	Four-wheel drive / all-wheel drive, driver-selectable	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.6	confirmed
G86	Rear differential, mechanical limited-slip	2022–2023, 2025–2027	2027: Elevation, AT4, Denali: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.9 · 2026 gmc yukon xl denali fleet order guide, p.9 · 2027 gmc yukon xl fleet order guide, p.9	confirmed
G96	Rear differential, electronic limited-slip	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S; AT4, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.19 · 2026 gmc yukon xl denali fleet order guide, p.20 · 2027 gmc yukon xl fleet order guide, p.17	confirmed
GU5	Rear axle ratio, 3.23	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.10 · 2026 gmc yukon xl denali fleet order guide, p.10 · 2027 gmc yukon xl fleet order guide, p.10	confirmed
RWL	Rear-wheel drive (2WD)	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.8	confirmed

Packages & Trims

Code	Description	Years	Models/Notes	Confidence
3SA	Trim group, SLE	2022–2023	listed as SLE option 1 ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9	confirmed
4SA	Trim group, Elevation	2022–2023, 2025–2027	the body-builder lists name it SLT option 1 ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.1 · 2026 gmc yukon xl denali fleet order guide, p.1 · 2027 gmc yukon xl fleet order guide, p.1	confirmed
4SB	Trim group, AT4	2022–2023, 2025–2027	the body-builder lists name it SLT option 2 ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.1 · 2026 gmc yukon xl denali fleet order guide, p.1 · 2027 gmc yukon xl fleet order guide, p.1	confirmed
4SG	Trim group, AT4 Ultimate	2025–2027	the 2026 body-builder list names it AT4 option 2 ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.1 · 2026 gmc yukon xl denali fleet order guide, p.1 · 2027 gmc yukon xl fleet order guide, p.1 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.4	confirmed
5KW	LPO, exterior appearance package 2	2026	⛭ GM factory document — 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.4	confirmed
5SA	Trim group, Denali	2022–2023, 2025–2027	the body-builder lists name it Denali option 1 ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.1 · 2026 gmc yukon xl denali fleet order guide, p.1 · 2027 gmc yukon xl fleet order guide, p.1	confirmed
5SB	Trim group, Denali Ultimate	2023, 2025–2027	the body-builder lists name it Denali option 2 ⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.1 · 2026 gmc yukon xl denali fleet order guide, p.1 · 2027 gmc yukon xl fleet order guide, p.1	confirmed
5V4	LPO, exterior appearance package 1	2026	⛭ GM factory document — 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.4	confirmed
9C1	Chassis package, police conversion	2026	listed in the 2026 body-builder list with its content lines ⛭ GM factory document — 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.4	confirmed
CWM	Technology package	2022–2023, 2025–2027	2027: Elevation, AT4: O; includes DRZ, UV6 ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.20 · 2026 gmc yukon xl denali fleet order guide, p.21 · 2027 gmc yukon xl fleet order guide, p.20	confirmed
CWN	Advanced Technology Package	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S; Denali: O; includes DRZ, NWM, NHT, ZM1 ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.12 · 2026 gmc yukon xl denali fleet order guide, p.12 · 2027 gmc yukon xl fleet order guide, p.12	confirmed
GFG	Trim package, AT4	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.6	confirmed
GFI	Trim package, SLE	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10	confirmed
GFU	Trim package, SLT	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.6	confirmed
GFW	Trim package, Denali	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.6	confirmed
GFY	Trim package, Denali Ultimate	2023, 2026	⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.6	confirmed
NHT	Max trailering package	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S; Elevation, AT4, Denali: O; includes UKW, PZ8, UET, JL1, V03 ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.18 · 2026 gmc yukon xl denali fleet order guide, p.19 · 2027 gmc yukon xl fleet order guide, p.17	confirmed
PCL	Super Cruise and Trailering Package	2025–2026	2026: Elevation: O; includes UKL, NHT ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.20 · 2026 gmc yukon xl denali fleet order guide, p.21	confirmed
PCN	Denali Reserve Package	2025–2027	2027: Denali: O; includes CWN, ZM1, C3U, B3L, UW9, SMI, SFE ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.23 · 2026 gmc yukon xl denali fleet order guide, p.24 · 2027 gmc yukon xl fleet order guide, p.21	confirmed
PCR	AT4 8-Passenger Premium Off-Road Package	2025–2026	2026: AT4: O; includes UKL, NHT, Z6E, C3U, B3L ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.21 · 2026 gmc yukon xl denali fleet order guide, p.23	confirmed
PCX	Elevation Preferred Package	2027	2027: Elevation: O; includes UKL, CWM, C3U ⛭ GM factory document — 2027 gmc yukon xl fleet order guide, p.20	confirmed
PDF	LPO, Elevation Appearance Package	2026–2027	2027: Elevation: O; includes R88, RZ9, RIK; the 2025 guide prints PDF as an Elevation Black Package ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.31 · 2027 gmc yukon xl fleet order guide, p.28	confirmed
PDF	LPO, Elevation Black Package	2025	2025: Elevation: O; includes R88, RZ9; the 2026 and 2027 guides print PDF as an Elevation Appearance Package (next row) ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.30	confirmed
PDK	LPO, 25th Anniversary Denali Package	2025	2025: Denali, Denali Ultimate: O; includes 5FG, RIK, S4X; the 2026 and 2027 guides print PDK as the Denali Sport Nightfall Edition (next row) ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.31	confirmed
PDK	LPO, Denali Sport Nightfall Edition	2026–2027	2027: Denali, Denali Ultimate: O; includes 5FG, RIK, S4X; the 2025 guide prints PDK as a 25th Anniversary Denali Package ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.32 · 2027 gmc yukon xl fleet order guide, p.28	confirmed
PDL	LPO, cargo convenience package	2025	2025: Elevation, AT4 Ultimate, Denali, Denali Ultimate: O; includes VRS, RWU, W2D ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.28	confirmed
PDN	AT4 Preferred Package	2026	2026: AT4: O; includes UKL, NHT, C3U ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.22	confirmed
PEH	AT4 Premium Plus Package	2025–2027	2027: AT4: O; includes RGM, NHT, Z6E, ZM1, B3L ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.21 · 2026 gmc yukon xl denali fleet order guide, p.22 · 2027 gmc yukon xl fleet order guide, p.21	confirmed
RFN	LPO, Performance Upgrade Package	2025–2027	2027: AT4, AT4 Ultimate, Denali, Denali Ultimate: O; includes WBC, K53 ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.41 · 2026 gmc yukon xl denali fleet order guide, p.42 · 2027 gmc yukon xl fleet order guide, p.37	confirmed
RFO	LPO, Hit The Road Package	2026–2027	2027: Elevation, Denali, Denali Ultimate: O; includes VQQ, VTB ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.33 · 2027 gmc yukon xl fleet order guide, p.29	confirmed
RFZ	LPO, Get Active Package	2025–2027	2027: O on all trims; includes VRS, W2D ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.31 · 2026 gmc yukon xl denali fleet order guide, p.32 · 2027 gmc yukon xl fleet order guide, p.29	confirmed
RG7	Premium Trailering Package	2025–2026	2026: AT4, Denali: O; includes NHT, Z6E ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.22 · 2026 gmc yukon xl denali fleet order guide, p.23	confirmed
RG8	LPO, Yukon Bright Edition	2025–2027	2027: Elevation, Denali, Denali Ultimate: O; includes VKU ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.32 · 2026 gmc yukon xl denali fleet order guide, p.33 · 2027 gmc yukon xl fleet order guide, p.30	confirmed
RGC	LPO, Floor Liner Package	2025–2027	2027: O on all trims ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.28 · 2026 gmc yukon xl denali fleet order guide, p.29 · 2027 gmc yukon xl fleet order guide, p.26	confirmed
RGD	Elevation Premium Package	2025–2027	2027: Elevation: O; includes PCX, NHT, SII ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.20 · 2026 gmc yukon xl denali fleet order guide, p.21 · 2027 gmc yukon xl fleet order guide, p.20	confirmed
RGE	LPO, Denali Appearance Package	2025–2027	2027: Denali, Denali Ultimate: O; includes S4X, R88, RIK; the 2025 guide reads Denali Ultimate Appearance Package ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.31 · 2026 gmc yukon xl denali fleet order guide, p.32 · 2027 gmc yukon xl fleet order guide, p.28	confirmed
RGF	LPO, Elevation Black Package	2025–2027	2027: Elevation: O; includes SGM, VTA, SFZ, RIK, S4X; the 2025 guide reads Yukon Black Package ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.32 · 2026 gmc yukon xl denali fleet order guide, p.33 · 2027 gmc yukon xl fleet order guide, p.29	confirmed
RGH	LPO, Interior Protection Package	2025–2026	2026: Elevation, AT4, AT4 Ultimate: O; includes VAV, RIB ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.28 · 2026 gmc yukon xl denali fleet order guide, p.29	confirmed
RGK	LPO, AT4 Black Appearance Package	2025–2027	2027: AT4, AT4 Ultimate: O; includes R88, RIK; the 2025 guide reads AT4 Appearance Package ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.31 · 2026 gmc yukon xl denali fleet order guide, p.31 · 2027 gmc yukon xl fleet order guide, p.28	confirmed
RGL	LPO, illumination package	2025–2027	2027: O on all trims; includes S3I, S0M, 5RU ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.32 · 2026 gmc yukon xl denali fleet order guide, p.33 · 2027 gmc yukon xl fleet order guide, p.29	confirmed
RGM	AT4 Premium Package	2025–2027	2027: AT4: O; includes UKL, CWM, C3U ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.21 · 2026 gmc yukon xl denali fleet order guide, p.22 · 2027 gmc yukon xl fleet order guide, p.20	confirmed
RGN	Sun and Power Step Package	2025–2027	2027: Denali: O; includes C3U, B3L ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.23 · 2026 gmc yukon xl denali fleet order guide, p.24 · 2027 gmc yukon xl fleet order guide, p.21	confirmed
RIB	LPO, all-weather floor liner package	2022–2023, 2025–2027	2027: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.60 · 2026 gmc yukon xl denali fleet order guide, p.62 · 2027 gmc yukon xl fleet order guide, p.53	confirmed
WBL	Sales package, sport	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.10	confirmed
WPD	Sales package, safety	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.14	confirmed
WPL	Sales package, luxury	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.14 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.10	confirmed
Z6E	Premium Capability Package with Active Response 4WD	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S; AT4, Denali: O; includes F47, G96; the 2022 and 2023 body-builder lists name it an off-road technology sales package ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.14 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.14 · 2025 gmc new yukon xl denali fleet order guide, p.18 · 2026 gmc yukon xl denali fleet order guide, p.19 · 2027 gmc yukon xl fleet order guide, p.17	confirmed
ZL6	Sales package, trailer integration	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.14 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.14 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.10	confirmed
ZM1	Enhanced Trailering Technology Package	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S; AT4, Denali: O; includes TRG, THS ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.14 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.14 · 2025 gmc new yukon xl denali fleet order guide, p.41 · 2026 gmc yukon xl denali fleet order guide, p.81 · 2027 gmc yukon xl fleet order guide, p.18	confirmed

Equipment

Code	Description	Years	Models/Notes	Confidence
5FF	LPO, wheels, 24 inch (61.0 cm) bright PVD	2025–2027	2027: Denali, Denali Ultimate: O; the 2025 code list reads Bright Chrome PVD; ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.38 · 2026 gmc yukon xl denali fleet order guide, p.39 · 2027 gmc yukon xl fleet order guide, p.34	confirmed
5FG	LPO, wheels, 24 inch (61.0 cm) black	2025–2027	2027: Denali, Denali Ultimate: O ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.37 · 2026 gmc yukon xl denali fleet order guide, p.38 · 2027 gmc yukon xl fleet order guide, p.34	confirmed
5JL	LPO, brake upgrade, front 6-piston Brembo with color-matched rear calipers	2022–2023, 2025–2027	2027: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.42 · 2026 gmc yukon xl denali fleet order guide, p.43 · 2027 gmc yukon xl fleet order guide, p.37	confirmed
5RU	LPO, liftgate sill plate, illuminated	2022–2023, 2025–2027	2027: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.29 · 2026 gmc yukon xl denali fleet order guide, p.30 · 2027 gmc yukon xl fleet order guide, p.26	confirmed
5VF	LPO, exhaust tip, carbon fiber	2022–2023, 2025–2026	2025: Elevation: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.33 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.4	confirmed
5W7	LPO, performance Air Intake System	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9	confirmed
A2X	Driver seat, 8-way power	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.6 · 2026 gmc yukon xl denali fleet order guide, p.6 · 2027 gmc yukon xl fleet order guide, p.6	confirmed
A45	Memory settings, driver seat and mirrors, personalization	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.4 · 2026 gmc yukon xl denali fleet order guide, p.4 · 2027 gmc yukon xl fleet order guide, p.4	confirmed
A50	Seats, front bucket	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.5 · 2026 gmc yukon xl denali fleet order guide, p.5 · 2027 gmc yukon xl fleet order guide, p.5	confirmed
A7J	Seat adjuster, front passenger 6-way power, with power recline, fore/aft and height	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9	confirmed
A7K	Front passenger seat, 8-way power	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.6 · 2026 gmc yukon xl denali fleet order guide, p.6 · 2027 gmc yukon xl fleet order guide, p.6	confirmed
AAK	LPO, floor liners, premium, first and second rows	2022–2023, 2025–2027	2027: AT4, Denali, Denali Ultimate: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.28 · 2026 gmc yukon xl denali fleet order guide, p.30 · 2027 gmc yukon xl fleet order guide, p.26	confirmed
AEF	Power window, front passenger, express up/down	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.8 · 2026 gmc yukon xl denali fleet order guide, p.8 · 2027 gmc yukon xl fleet order guide, p.8	confirmed
AEQ	Windows, power, rear, express down	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.8 · 2026 gmc yukon xl denali fleet order guide, p.8 · 2027 gmc yukon xl fleet order guide, p.8	confirmed
AF6	Seat, driver power massage	2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S ⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.14 · 2026 gmc yukon xl denali fleet order guide, p.15 · 2027 gmc yukon xl fleet order guide, p.14	confirmed
AHE	Seat, driver 2-way power	2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S ⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.14 · 2026 gmc yukon xl denali fleet order guide, p.15 · 2027 gmc yukon xl fleet order guide, p.14	confirmed
AHH	Seat, front passenger 2-way power	2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S ⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.14 · 2026 gmc yukon xl denali fleet order guide, p.15 · 2027 gmc yukon xl fleet order guide, p.14	confirmed
AKE	Seat, front passenger power massage	2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S ⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.14 · 2026 gmc yukon xl denali fleet order guide, p.15 · 2027 gmc yukon xl fleet order guide, p.14	confirmed
AKJ	Windshield shade band	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.7 · 2026 gmc yukon xl denali fleet order guide, p.7 · 2027 gmc yukon xl fleet order guide, p.7	confirmed
AKK	Glass, laminated acoustic	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.7 · 2026 gmc yukon xl denali fleet order guide, p.7 · 2027 gmc yukon xl fleet order guide, p.7	confirmed
AKO	Glass, deep-tinted (privacy)	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.7 · 2026 gmc yukon xl denali fleet order guide, p.7 · 2027 gmc yukon xl fleet order guide, p.7	confirmed
AKX	Windshield, solar-absorbing	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.5	confirmed
AL0	Front passenger sensing system for the passenger airbag	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.1 · 2026 gmc yukon xl denali fleet order guide, p.1 · 2027 gmc yukon xl fleet order guide, p.1	confirmed
AL9	Seat adjuster, driver 2-way power lumbar	2022–2023, 2025–2027	2027: Elevation: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.6 · 2026 gmc yukon xl denali fleet order guide, p.6 · 2027 gmc yukon xl fleet order guide, p.6	confirmed
ARN	Seats, third row 60/40 bench, manual fold	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9	confirmed
AS8	Third-row seat, 60/40 split bench, power-folding	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.6 · 2026 gmc yukon xl denali fleet order guide, p.6 · 2027 gmc yukon xl fleet order guide, p.6	confirmed
ASD	Airbags, frontal, seat-mounted side-impact and head-curtain, all rows	2025–2027	2027: S on all trims ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.1 · 2026 gmc yukon xl denali fleet order guide, p.1 · 2027 gmc yukon xl fleet order guide, p.1	confirmed
AT6	Seats, rear 60/40 bench, manual, configurable	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9	confirmed
AT9	Seat adjuster, front passenger 2-way power lumbar	2022–2023, 2025–2027	2027: Elevation: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.6 · 2026 gmc yukon xl denali fleet order guide, p.6 · 2027 gmc yukon xl fleet order guide, p.6	confirmed
ATH	Keyless Open (extended-range remote keyless entry)	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.4 · 2026 gmc yukon xl denali fleet order guide, p.4 · 2027 gmc yukon xl fleet order guide, p.4	confirmed
ATN	Second-row seats, buckets	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali, Denali Ultimate: S; Elevation, AT4: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.14 · 2026 gmc yukon xl denali fleet order guide, p.15 · 2027 gmc yukon xl fleet order guide, p.14	confirmed
ATT	Second-row seat, 60/40 split-folding bench	2022–2023, 2025–2027	2027: Elevation, AT4: S; Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.6 · 2026 gmc yukon xl denali fleet order guide, p.6 · 2027 gmc yukon xl fleet order guide, p.6	confirmed
ATV	Seats, rear bucket, manual, configurable	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9	confirmed
AU3	Door locks, power, programmable	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.3 · 2026 gmc yukon xl denali fleet order guide, p.3 · 2027 gmc yukon xl fleet order guide, p.3	confirmed
AUN	Memory, driver seat	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9	confirmed
AVI	Seat-belt guide loop, adjustable	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.5	confirmed
AVK	Driver seat, 4-way power lumbar	2022–2023, 2025–2027	2027: AT4, AT4 Ultimate, Denali, Denali Ultimate: S; Elevation: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2025 gmc new yukon xl denali fleet order guide, p.14 · 2026 gmc yukon xl denali fleet order guide, p.15 · 2027 gmc yukon xl fleet order guide, p.14	confirmed
AVU	Front passenger seat, 4-way power lumbar	2022–2023, 2025–2027	2027: AT4, AT4 Ultimate, Denali, Denali Ultimate: S; Elevation: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.14 · 2026 gmc yukon xl denali fleet order guide, p.16 · 2027 gmc yukon xl fleet order guide, p.14	confirmed
AX2	Keys, common vehicle-unique	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.5	confirmed
AXG	Power window, driver, express up/down	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.8 · 2026 gmc yukon xl denali fleet order guide, p.8 · 2027 gmc yukon xl fleet order guide, p.8	confirmed
AY0	Restraint system, inflatable seats, driver and front passenger, seat side and roof side	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10	confirmed
AYQ	Restraint system, inflatable seats, driver and front passenger, front seat side, front inboard seat side and roof side	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10	confirmed
AZ3	Seats, front split, driver and passenger, full-feature center	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10	confirmed
B1V	Door handles, chrome, with body-color strip	2022–2023, 2025–2027	2027: Elevation, Denali, Denali Ultimate: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.7 · 2026 gmc yukon xl denali fleet order guide, p.6 · 2027 gmc yukon xl fleet order guide, p.7	confirmed
B30	Floor covering, color-keyed carpet	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.3 · 2026 gmc yukon xl denali fleet order guide, p.3 · 2027 gmc yukon xl fleet order guide, p.3	confirmed
B3L	Assist steps, power-retractable, with lighting	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S; AT4, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.15 · 2026 gmc yukon xl denali fleet order guide, p.16 · 2027 gmc yukon xl fleet order guide, p.14	confirmed
B58	Floor mats, carpeted, first and second rows	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.3 · 2026 gmc yukon xl denali fleet order guide, p.3 · 2027 gmc yukon xl fleet order guide, p.3	confirmed
B85	Bodyside moldings, Galvano (bright)	2022–2023, 2025–2027	2027: Denali: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.16 · 2026 gmc yukon xl denali fleet order guide, p.18 · 2027 gmc yukon xl fleet order guide, p.15	confirmed
B88	Moldings, bodyside, vader	2023, 2025–2027	2027: Denali Ultimate: S ⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.16 · 2026 gmc yukon xl denali fleet order guide, p.18 · 2027 gmc yukon xl fleet order guide, p.15	confirmed
BMK	Moldings, bodyside, bright chrome	2022–2023, 2025–2027	2027: Elevation: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.8 · 2026 gmc yukon xl denali fleet order guide, p.8 · 2027 gmc yukon xl fleet order guide, p.8	confirmed
BOY	Vehicle interface, smartphone, uplevel, retail	2026	⛭ GM factory document — 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.5	confirmed
BTM	Keyless start, push-button	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.4 · 2026 gmc yukon xl denali fleet order guide, p.4 · 2027 gmc yukon xl fleet order guide, p.4	confirmed
BTV	Remote start, adaptive	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.5 · 2026 gmc yukon xl denali fleet order guide, p.5 · 2027 gmc yukon xl fleet order guide, p.5	confirmed
BVE	Assist steps, running boards	2022–2023, 2025–2027	2027: Elevation, AT4, Denali: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.6 · 2026 gmc yukon xl denali fleet order guide, p.6 · 2027 gmc yukon xl fleet order guide, p.6	confirmed
C25	Rear wiper, intermittent	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.9 · 2026 gmc yukon xl denali fleet order guide, p.9 · 2027 gmc yukon xl fleet order guide, p.9	confirmed
C3A	Heating and defrost system, reinforced, 1.5 kW electric	2022–2023, 2025–2027	2027: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.50 · 2026 gmc yukon xl denali fleet order guide, p.53 · 2027 gmc yukon xl fleet order guide, p.44	confirmed
C3F	GVWR, 7,700 lb (3,493 kg)	2025–2027	2027: S on all trims ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.10 · 2026 gmc yukon xl denali fleet order guide, p.10 · 2027 gmc yukon xl fleet order guide, p.10	confirmed
C3Q	Sill plates, bright	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.14 · 2026 gmc yukon xl denali fleet order guide, p.16 · 2027 gmc yukon xl fleet order guide, p.6	confirmed
C3U	Sunroof, power panoramic	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S; Elevation, AT4, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.15 · 2026 gmc yukon xl denali fleet order guide, p.17 · 2027 gmc yukon xl fleet order guide, p.15	confirmed
C49	Rear-window defogger	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.3 · 2026 gmc yukon xl denali fleet order guide, p.3 · 2027 gmc yukon xl fleet order guide, p.3	confirmed
C69	Air conditioning, rear	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.1 · 2026 gmc yukon xl denali fleet order guide, p.1 · 2027 gmc yukon xl fleet order guide, p.1	confirmed
C6G	GVWR, 7,600 lb (3,447 kg)	2025–2027	2027: Elevation, Denali: S ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.10 · 2026 gmc yukon xl denali fleet order guide, p.10 · 2027 gmc yukon xl fleet order guide, p.10	confirmed
CAV	LPO, cargo mat, all-weather	2022–2023, 2025–2027	2027: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.59 · 2026 gmc yukon xl denali fleet order guide, p.62 · 2027 gmc yukon xl fleet order guide, p.53	confirmed
CE1	Wipers, front, rain-sensing	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.9 · 2026 gmc yukon xl denali fleet order guide, p.9 · 2027 gmc yukon xl fleet order guide, p.9	confirmed
CJ2	Climate control, tri-zone automatic	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.1 · 2026 gmc yukon xl denali fleet order guide, p.1 · 2027 gmc yukon xl fleet order guide, p.1	confirmed
CTB	Intersection Automatic Emergency Braking	2025–2027	2027: S on all trims ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.4 · 2026 gmc yukon xl denali fleet order guide, p.4 · 2027 gmc yukon xl fleet order guide, p.4	confirmed
CTT	Hitch Guidance	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.10 · 2026 gmc yukon xl denali fleet order guide, p.10 · 2027 gmc yukon xl fleet order guide, p.10	confirmed
CWA	Rear camera washer	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.8 · 2026 gmc yukon xl denali fleet order guide, p.8 · 2027 gmc yukon xl fleet order guide, p.8	confirmed
D07	Front floor console with storage	2022–2023, 2025–2027	2027: Elevation, AT4: S; Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.2 · 2026 gmc yukon xl denali fleet order guide, p.2 · 2027 gmc yukon xl fleet order guide, p.2	confirmed
D31	Mirror, inside rearview, tilt	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10	confirmed
D75	Door handles, body-color	2022–2023, 2025–2027	2027: AT4, AT4 Ultimate: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.15 · 2026 gmc yukon xl denali fleet order guide, p.16 · 2027 gmc yukon xl fleet order guide, p.14	confirmed
DCH	Console, floor, power-sliding center	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali, Denali Ultimate: S; Elevation, AT4: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.3 · 2026 gmc yukon xl denali fleet order guide, p.3 · 2027 gmc yukon xl fleet order guide, p.3	confirmed
DD8	Inside rearview mirror, auto-dimming	2022–2023, 2025–2027	2027: Elevation, AT4, Denali: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.4 · 2026 gmc yukon xl denali fleet order guide, p.4 · 2027 gmc yukon xl fleet order guide, p.4	confirmed
DH6	Sunshade vanity mirrors, illuminated, driver and passenger	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.8 · 2026 gmc yukon xl denali fleet order guide, p.8 · 2027 gmc yukon xl fleet order guide, p.8	confirmed
DLF	Mirrors, outside, left-hand and right-hand, remote-controlled, heated, manual fold, flat driver side, convex passenger side	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10	confirmed
DP6	Outside mirror housings, painted	2022–2023, 2025–2027	2027: S on all trims; the 2025 guide reads mirror caps, body-color ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.8 · 2026 gmc yukon xl denali fleet order guide, p.8 · 2027 gmc yukon xl fleet order guide, p.8	confirmed
DRZ	Rear Camera Mirror	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S; Elevation, AT4, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.13 · 2026 gmc yukon xl denali fleet order guide, p.14 · 2027 gmc yukon xl fleet order guide, p.13	confirmed
DXR	Outside mirrors, heated, power-adjustable and power-folding	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.8 · 2026 gmc yukon xl denali fleet order guide, p.8 · 2027 gmc yukon xl fleet order guide, p.8	confirmed
ENL	Stop/start disable button	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.9 · 2026 gmc yukon xl denali fleet order guide, p.9 · 2027 gmc yukon xl fleet order guide, p.9	confirmed
EPH	Electronic Precision Shift	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.9 · 2026 gmc yukon xl denali fleet order guide, p.9 · 2027 gmc yukon xl fleet order guide, p.9	confirmed
F47	Suspension, Air Ride Adaptive	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S; AT4, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.19 · 2026 gmc yukon xl denali fleet order guide, p.20 · 2027 gmc yukon xl fleet order guide, p.18	confirmed
HS1	Safety Alert Seat	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.5 · 2026 gmc yukon xl denali fleet order guide, p.5 · 2027 gmc yukon xl fleet order guide, p.5	confirmed
IOK	Radio, infotainment system 3.x mid/high HMI, enhanced connectivity	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11	confirmed
IVE	Infotainment, virtual cockpit system, high	2026	⛭ GM factory document — 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.6	confirmed
J61	Brakes, four-wheel antilock, four-wheel disc	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.9 · 2026 gmc yukon xl denali fleet order guide, p.9 · 2027 gmc yukon xl fleet order guide, p.9	confirmed
JBK	Brake lining wear indicator	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.6	confirmed
JHD	Hill descent control	2022–2023, 2025–2027	2027: AT4, AT4 Ultimate, Denali Ultimate: S; Elevation, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.19 · 2026 gmc yukon xl denali fleet order guide, p.20 · 2027 gmc yukon xl fleet order guide, p.18	confirmed
JL1	Trailer brake controller, integrated	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S; Elevation, AT4, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.19 · 2026 gmc yukon xl denali fleet order guide, p.20 · 2027 gmc yukon xl fleet order guide, p.19	confirmed
K05	Engine block heater	2022–2023, 2025–2027	2027: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.40 · 2026 gmc yukon xl denali fleet order guide, p.41 · 2027 gmc yukon xl fleet order guide, p.36	confirmed
K1O	Engine air filter monitor	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.9 · 2026 gmc yukon xl denali fleet order guide, p.9 · 2027 gmc yukon xl fleet order guide, p.9	confirmed
K34	Cruise control, electronic	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11	confirmed
K3W	Battery, AGM 12V 95Ah, 900 cold-cranking amps	2022–2023, 2025–2027	2027: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.76 · 2026 gmc yukon xl denali fleet order guide, p.77 · 2027 gmc yukon xl fleet order guide, p.68	confirmed
K47	Air filter, heavy-duty	2022–2023, 2025–2027	2027: AT4, AT4 Ultimate: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.18 · 2026 gmc yukon xl denali fleet order guide, p.19 · 2027 gmc yukon xl fleet order guide, p.17	confirmed
K4C	Wireless phone charging	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11	confirmed
K4F	Battery, 730 cold-cranking amps	2022–2023, 2025–2027	2027: S on all trims; the 2026 body-builder list reads an LN4 AGM 12-volt 80 amp-hour battery rated 800 EN cold-cranking amps ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.9 · 2026 gmc yukon xl denali fleet order guide, p.9 · 2027 gmc yukon xl fleet order guide, p.9 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.7	confirmed
K53	Performance Air Intake System	2025–2027	2027: AT4, AT4 Ultimate, Denali, Denali Ultimate: O ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.41 · 2026 gmc yukon xl denali fleet order guide, p.42 · 2027 gmc yukon xl fleet order guide, p.36	confirmed
K6L	Cabin air filter, pollutant, odor and fine dust	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.1 · 2026 gmc yukon xl denali fleet order guide, p.1 · 2027 gmc yukon xl fleet order guide, p.1	confirmed
K7A	Wireless phone charging, front	2025–2027	2027: S on all trims ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.8 · 2026 gmc yukon xl denali fleet order guide, p.8 · 2027 gmc yukon xl fleet order guide, p.8	confirmed
KA1	Heated front seats	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.5 · 2026 gmc yukon xl denali fleet order guide, p.5 · 2027 gmc yukon xl fleet order guide, p.5	confirmed
KA6	Heated second-row seats	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.5 · 2026 gmc yukon xl denali fleet order guide, p.5 · 2027 gmc yukon xl fleet order guide, p.5	confirmed
KC4	Engine oil cooler, external	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.9 · 2026 gmc yukon xl denali fleet order guide, p.9 · 2027 gmc yukon xl fleet order guide, p.9	confirmed
KC5	Accessory power receptacle	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11	confirmed
KI3	Heated steering wheel	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.6 · 2026 gmc yukon xl denali fleet order guide, p.6 · 2027 gmc yukon xl fleet order guide, p.6	confirmed
KI4	Power outlets, two 120-volt	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.5 · 2026 gmc yukon xl denali fleet order guide, p.5 · 2027 gmc yukon xl fleet order guide, p.5	confirmed
KL9	Automatic stop/start	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.9 · 2026 gmc yukon xl denali fleet order guide, p.9 · 2027 gmc yukon xl fleet order guide, p.9	confirmed
KNP	Transmission oil cooler, external	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.9 · 2026 gmc yukon xl denali fleet order guide, p.9 · 2027 gmc yukon xl fleet order guide, p.9	confirmed
KQV	Front seats, heated and ventilated	2022–2023, 2025–2027	2027: AT4, AT4 Ultimate, Denali, Denali Ultimate: S; Elevation: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.13 · 2026 gmc yukon xl denali fleet order guide, p.15 · 2027 gmc yukon xl fleet order guide, p.13	confirmed
KSG	Adaptive Cruise Control	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.3 · 2026 gmc yukon xl denali fleet order guide, p.3 · 2027 gmc yukon xl fleet order guide, p.3	confirmed
KW5	Alternator, 220 amps	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.9 · 2026 gmc yukon xl denali fleet order guide, p.9 · 2027 gmc yukon xl fleet order guide, p.9	confirmed
KX4	Alternator, 250 amps	2022–2023, 2025–2027	2027: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.76 · 2026 gmc yukon xl denali fleet order guide, p.77 · 2027 gmc yukon xl fleet order guide, p.68	confirmed
N06	Steering column lock, electric	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.7 · 2026 gmc yukon xl denali fleet order guide, p.7 · 2027 gmc yukon xl fleet order guide, p.6	confirmed
N10	Exhaust, dual with polished outlets	2022–2023, 2025–2027	2027: AT4, AT4 Ultimate, Denali, Denali Ultimate: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.19 · 2026 gmc yukon xl denali fleet order guide, p.20 · 2027 gmc yukon xl fleet order guide, p.18	confirmed
N37	Steering column, tilt-wheel and telescoping, manual	2022–2023, 2025–2027	2027: Elevation: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.7 · 2026 gmc yukon xl denali fleet order guide, p.7 · 2027 gmc yukon xl fleet order guide, p.7	confirmed
N38	Steering column, power tilt and telescoping	2022–2023, 2025–2027	2027: AT4, AT4 Ultimate, Denali, Denali Ultimate: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.15 · 2026 gmc yukon xl denali fleet order guide, p.16 · 2027 gmc yukon xl fleet order guide, p.14	confirmed
N57	Steering wheel, synthetic, 4-spoke	2023	⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11	confirmed
N5G	Steering wheel, wrapped	2025–2027	2027: Elevation, AT4, Denali: S ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.7 · 2026 gmc yukon xl denali fleet order guide, p.7 · 2027 gmc yukon xl fleet order guide, p.7	confirmed
N5M	Steering wheel, leather-wrapped, 4-spoke	2025–2027	2027: AT4 Ultimate, Denali Ultimate: S ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.15 · 2026 gmc yukon xl denali fleet order guide, p.16 · 2027 gmc yukon xl fleet order guide, p.15	confirmed
NB5	Exhaust, single system, single-outlet	2022–2023, 2025–2027	2027: Elevation: S; Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.9 · 2026 gmc yukon xl denali fleet order guide, p.10 · 2027 gmc yukon xl fleet order guide, p.9	confirmed
NP5	Steering wheel, leather-wrapped	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11	confirmed
NWM	Advanced Security Package	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S; AT4, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.12 · 2026 gmc yukon xl denali fleet order guide, p.12 · 2027 gmc yukon xl fleet order guide, p.12	confirmed
NZG	Wheel, 20 x 9 aluminum, design 7	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11	confirmed
NZH	Wheel, 20 x 9 aluminum, design 8	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11	confirmed
NZW	Wheel, 20 x 9 aluminum, design 22	2023	⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11	confirmed
P0H	OnStar Connect Plus plan, 12 months (fleet)	2026–2027	2027: O on all trims ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.97 · 2027 gmc yukon xl fleet order guide, p.88	confirmed
P0I	OnStar Connect Plus plan, 24 months (fleet)	2026–2027	2027: O on all trims ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.98 · 2027 gmc yukon xl fleet order guide, p.89	confirmed
P0J	OnStar Protect plan, 24 months (fleet)	2025–2027	2027: O on all trims; the 2025 guide reads OnStar Security, 24 months of service ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.87 · 2026 gmc yukon xl denali fleet order guide, p.88 · 2027 gmc yukon xl fleet order guide, p.79	confirmed
P0K	OnStar Protect plan, 36 months (fleet)	2025–2027	2027: O on all trims; the 2025 guide reads OnStar Security, 36 months of service ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.88 · 2026 gmc yukon xl denali fleet order guide, p.89 · 2027 gmc yukon xl fleet order guide, p.80	confirmed
P0L	OnStar Protect plan, 48 months (fleet)	2025–2027	2027: O on all trims; the 2025 guide reads OnStar Security, 48 months of service ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.89 · 2026 gmc yukon xl denali fleet order guide, p.89 · 2027 gmc yukon xl fleet order guide, p.80	confirmed
P0Q	OnStar Protect plan, 60 months (fleet)	2025–2027	2027: O on all trims; the 2025 guide reads OnStar Security, 60 months of service ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.90 · 2026 gmc yukon xl denali fleet order guide, p.90 · 2027 gmc yukon xl fleet order guide, p.81	confirmed
P0U	OnStar Protect plan, 12 months (fleet)	2025–2027	2027: O on all trims; the 2025 guide reads OnStar Security, 12 months of service ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.86 · 2026 gmc yukon xl denali fleet order guide, p.88 · 2027 gmc yukon xl fleet order guide, p.79	confirmed
P0V	OnStar Telematics plan, 12 months (fleet)	2025–2027	2027: O on all trims; the 2025 guide reads OnStar Insights, 12 months of service ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.91 · 2026 gmc yukon xl denali fleet order guide, p.90 · 2027 gmc yukon xl fleet order guide, p.81	confirmed
P0W	OnStar Telematics plan, 24 months (fleet)	2025–2027	2027: O on all trims; the 2025 guide reads OnStar Insights, 24 months of service ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.91 · 2026 gmc yukon xl denali fleet order guide, p.91 · 2027 gmc yukon xl fleet order guide, p.82	confirmed
P0X	OnStar Telematics plan, 36 months (fleet)	2025–2027	2027: O on all trims; the 2025 guide reads OnStar Insights, 36 months of service ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.92 · 2026 gmc yukon xl denali fleet order guide, p.92 · 2027 gmc yukon xl fleet order guide, p.83	confirmed
P0Y	OnStar Telematics plan, 48 months (fleet)	2025–2027	2027: O on all trims; the 2025 guide reads OnStar Insights, 48 months of service ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.92 · 2026 gmc yukon xl denali fleet order guide, p.93 · 2027 gmc yukon xl fleet order guide, p.84	confirmed
P0Z	OnStar Telematics plan, 60 months (fleet)	2025–2027	2027: O on all trims; the 2025 guide reads OnStar Insights, 60 months of service ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.93 · 2026 gmc yukon xl denali fleet order guide, p.94 · 2027 gmc yukon xl fleet order guide, p.85	confirmed
P1N	API Pro plan, 12 months (fleet)	2026–2027	2027: O on all trims ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.112 · 2027 gmc yukon xl fleet order guide, p.103	confirmed
P1O	API Pro plan, 24 months (fleet)	2026–2027	2027: O on all trims ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.113 · 2027 gmc yukon xl fleet order guide, p.104	confirmed
P1P	API Pro plan, 36 months (fleet)	2026–2027	2027: O on all trims ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.114 · 2027 gmc yukon xl fleet order guide, p.105	confirmed
P1Q	API Elite plan, 6 months (fleet)	2026–2027	2027: O on all trims ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.115 · 2027 gmc yukon xl fleet order guide, p.106	confirmed
P1R	API Starter plan, 6 months (fleet)	2026–2027	2027: O on all trims ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.107 · 2027 gmc yukon xl fleet order guide, p.98	confirmed
P1S	API Starter plan, 12 months (fleet)	2026–2027	2027: O on all trims ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.108 · 2027 gmc yukon xl fleet order guide, p.99	confirmed
P1T	API Starter plan, 24 months (fleet)	2026–2027	2027: O on all trims ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.109 · 2027 gmc yukon xl fleet order guide, p.100	confirmed
P1U	API Starter plan, 36 months (fleet)	2026–2027	2027: O on all trims ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.110 · 2027 gmc yukon xl fleet order guide, p.101	confirmed
PAN	Phone projection technology, version 1	2026	⛭ GM factory document — 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.7	confirmed
PAP	Phone projection technology, version 2	2026	⛭ GM factory document — 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.7	confirmed
PPW	Wireless Apple CarPlay and Android Auto	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.8 · 2026 gmc yukon xl denali fleet order guide, p.8 · 2027 gmc yukon xl fleet order guide, p.8	confirmed
PQG	OnStar Connect Plus plan, 36 months (fleet)	2026–2027	2027: O on all trims ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.99 · 2027 gmc yukon xl fleet order guide, p.90	confirmed
PQH	OnStar Connect Plus plan, 48 months (fleet)	2026–2027	2027: O on all trims ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.100 · 2027 gmc yukon xl fleet order guide, p.91	confirmed
PQI	OnStar Connect Plus plan, 60 months (fleet)	2026–2027	2027: O on all trims ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.101 · 2027 gmc yukon xl fleet order guide, p.92	confirmed
PQL	OnStar Video Telematics with hardware, 12 months (fleet)	2026–2027	2027: O on all trims ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.102 · 2027 gmc yukon xl fleet order guide, p.93	confirmed
PQM	OnStar Video Telematics with hardware, 24 months (fleet)	2026–2027	2027: O on all trims ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.103 · 2027 gmc yukon xl fleet order guide, p.94	confirmed
PQP	OnStar Video Telematics with hardware, 36 months (fleet)	2026–2027	2027: O on all trims ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.104 · 2027 gmc yukon xl fleet order guide, p.95	confirmed
PQQ	OnStar Video Telematics with hardware, 48 months (fleet)	2026–2027	2027: O on all trims ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.105 · 2027 gmc yukon xl fleet order guide, p.96	confirmed
PQT	OnStar Video Telematics with hardware, 60 months (fleet)	2026–2027	2027: O on all trims ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.106 · 2027 gmc yukon xl fleet order guide, p.97	confirmed
PR6	API Elite plan, 24 months (fleet)	2026–2027	2027: O on all trims; in 2025 the code meant 9 extra SiriusXM Platinum months ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.117 · 2027 gmc yukon xl fleet order guide, p.108	confirmed
PR6	SiriusXM, additional 9 months of the SXM Platinum Plan	2025	2025: O on all trims ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.96	confirmed
PR7	SiriusXM, additional 21 months of the SXM Platinum Plan	2025	2025: O on all trims ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.96	confirmed
PR8	SiriusXM, additional 33 months of the SXM Platinum Plan	2025	2025: O on all trims ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.96	confirmed
PRB	OnStar One, 3 years	2025–2027	2027: Elevation, AT4: O; the 2027 guide adds "Standalone" ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.25 · 2026 gmc yukon xl denali fleet order guide, p.26 · 2027 gmc yukon xl fleet order guide, p.24	confirmed
PRE	API Elite plan, 12 months (fleet)	2026–2027	2027: O on all trims ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.116 · 2027 gmc yukon xl fleet order guide, p.107	confirmed
PTT	Trailer tire pressure monitoring, manual learn	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11	confirmed
PZ8	Hitch Guidance with Hitch View	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S; Elevation, AT4, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.19 · 2026 gmc yukon xl denali fleet order guide, p.20 · 2027 gmc yukon xl fleet order guide, p.18	confirmed
Q8E	Jack, mechanical, with tools	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.4 · 2026 gmc yukon xl denali fleet order guide, p.4 · 2027 gmc yukon xl fleet order guide, p.4	confirmed
QAE	Tires, 275/60R20SL all-terrain, blackwall	2022–2023, 2025–2027	2027: AT4, AT4 Ultimate: S; the 2023 list reads Tire, all, 275/60R20 SL 115S BW AT ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.16 · 2026 gmc yukon xl denali fleet order guide, p.18 · 2027 gmc yukon xl fleet order guide, p.15	confirmed
QDF	Tire, all, 265/65R18 SL 114T BW ALS, variation 1	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11	confirmed
QKN	Tires, 285/40R24 all-season	2025–2027	2027: Denali Ultimate: S; Denali: O ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.16 · 2026 gmc yukon xl denali fleet order guide, p.18 · 2027 gmc yukon xl fleet order guide, p.16	confirmed
R4J	Wheels, 20 x 9 (50.8 cm x 22.9 cm), machined and painted Satin Graphite	2025–2027	2027: Elevation: S ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.8 · 2026 gmc yukon xl denali fleet order guide, p.9 · 2027 gmc yukon xl fleet order guide, p.8	confirmed
R4K	Wheels, 22 inch (55.9 cm), 7-spoke, ultra-bright machined with After Midnight Metallic and high-gloss accents	2027	2027: Denali Ultimate: O; the guide wording is cut off after "high" ⛭ GM factory document — 2027 gmc yukon xl fleet order guide, p.27	confirmed
R4L	Wheels, 20 x 9 (50.8 cm x 22.9 cm), machined and painted Carbon Flash Metallic	2025–2027	2027: AT4: S ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.16 · 2026 gmc yukon xl denali fleet order guide, p.18 · 2027 gmc yukon xl fleet order guide, p.16	confirmed
R4S	Wheels, 20 x 9 (50.8 cm x 22.9 cm), machined and painted Deep Void Matte Metallic	2027	2027: AT4 Ultimate: S ⛭ GM factory document — 2027 gmc yukon xl fleet order guide, p.16	confirmed
R6P	SiriusXM, 3 years	2025–2027	2027: O on all trims ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.24 · 2026 gmc yukon xl denali fleet order guide, p.25 · 2027 gmc yukon xl fleet order guide, p.22	confirmed
R7S	Not equipped with Bluetooth headphones	2026	2026: AT4 Ultimate, Denali Ultimate: S; Elevation, AT4, Denali: O ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.14	confirmed
R7Z	API Pro plan, 6 months (fleet)	2026–2027	2027: O on all trims ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.111 · 2027 gmc yukon xl fleet order guide, p.102	confirmed
R88	LPO, illuminated front black GMC emblem	2022–2023, 2025–2027	2027: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.33 · 2026 gmc yukon xl denali fleet order guide, p.34 · 2027 gmc yukon xl fleet order guide, p.31	confirmed
R8G	OnStar One Fleet plan, 12 months	2025–2027	2027: O on all trims; the 2025 guide reads OnStar One Business Plus, 12 months of service ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.93 · 2026 gmc yukon xl denali fleet order guide, p.94 · 2027 gmc yukon xl fleet order guide, p.85	confirmed
R8P	OnStar One Fleet plan, 36 months	2025–2027	2027: O on all trims; the 2025 guide reads OnStar One Business Plus, 36 months of service ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.94 · 2026 gmc yukon xl denali fleet order guide, p.95 · 2027 gmc yukon xl fleet order guide, p.86	confirmed
R8S	OnStar One Super Cruise extension to 8 years	2026–2027	2027: O on all trims ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.26 · 2027 gmc yukon xl fleet order guide, p.23	confirmed
R8W	OnStar One Fleet plan, 60 months	2025–2027	2027: O on all trims; the 2025 guide reads OnStar One Business Plus, 60 months of service ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.95 · 2026 gmc yukon xl denali fleet order guide, p.96 · 2027 gmc yukon xl fleet order guide, p.87	confirmed
R8Z	OnStar One Fleet plan, 48 months	2025–2027	2027: O on all trims; the 2025 guide reads OnStar One Business Plus, 48 months of service ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.95 · 2026 gmc yukon xl denali fleet order guide, p.96 · 2027 gmc yukon xl fleet order guide, p.87	confirmed
R9L	OnStar Basics, removed (OnStar Fleet Basics for Fleet)	2025–2027	2027: O on all trims; this code has another meaning in a second guide entry (see the next R9L row); the 2025 and 2026 guides print Deleted OnStar Basics, the 2027 guide Removes OnStar Basics ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.52 · 2026 gmc yukon xl denali fleet order guide, p.55 · 2027 gmc yukon xl fleet order guide, p.46	confirmed
R9L	OnStar One, 3 years and 3 years with Super Cruise upgrade, removed	2025–2027	2027: O on all trims; this code has another meaning in a second guide entry (the first is OnStar Basics); the 2025 guide words it as deleted 3 years of Super Cruise and Digital Services by OnStar, the 2026 and 2027 guides as removing 3 years of OnStar One and 3 years of OnStar One with the Super Cruise upgrade ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.25 · 2026 gmc yukon xl denali fleet order guide, p.26 · 2027 gmc yukon xl fleet order guide, p.23	confirmed
R9M	OnStar One, 3 years	2025–2027	2027: AT4 Ultimate, Denali, Denali Ultimate: S; Elevation, AT4: O; the 2025 guide reads 3 years of OnStar Digital Services; the 2026 and 2027 guides read 3 years OnStar One ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.13 · 2026 gmc yukon xl denali fleet order guide, p.15 · 2027 gmc yukon xl fleet order guide, p.13	confirmed
R9V	Mobile Service Plus, 3 years	2025–2027	2027: O on all trims; Escalade reads this code as 4 years; the Yukon XL guides print 3 years ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.26 · 2026 gmc yukon xl denali fleet order guide, p.27 · 2027 gmc yukon xl fleet order guide, p.24	confirmed
R9W	Mobile Service Plus deleted	2025–2027	2027: O on all trims ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.26 · 2026 gmc yukon xl denali fleet order guide, p.27 · 2027 gmc yukon xl fleet order guide, p.25	confirmed
R9Y	Mobile Service Plus, 1 year	2025–2027	2027: O on all trims ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.25 · 2026 gmc yukon xl denali fleet order guide, p.27 · 2027 gmc yukon xl fleet order guide, p.24	confirmed
RBR	Wheels, 22 x 9-inch steel	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.7	confirmed
RC1	Skid plate, front	2022–2023, 2025–2027	2027: AT4, AT4 Ultimate: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.19 · 2026 gmc yukon xl denali fleet order guide, p.20 · 2027 gmc yukon xl fleet order guide, p.18	confirmed
RDI	Keyless entry (accessory)	2022–2023, 2025–2026	2025: Elevation, AT4, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.34 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.7	confirmed
RF3	Wheels, 24 x 9.5 (61 cm x 24.1 cm), selective machined and painted Pearl Nickel	2025–2027	2027: Denali: O ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.30 · 2026 gmc yukon xl denali fleet order guide, p.31 · 2027 gmc yukon xl fleet order guide, p.27	confirmed
RF4	Wheels, 24 x 9.5 (61 cm x 24.1 cm), selective machined and painted After Midnight	2025–2027	2027: Denali Ultimate: S ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.17 · 2026 gmc yukon xl denali fleet order guide, p.18 · 2027 gmc yukon xl fleet order guide, p.16	confirmed
RF8	Wheels, 24 x 9.5-inch steel	2026	⛭ GM factory document — 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.7	confirmed
RFH	OnStar One Fleet plan, 24 months	2025–2027	2027: O on all trims; the 2025 guide reads OnStar One Business Plus, 24 months of service ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.94 · 2026 gmc yukon xl denali fleet order guide, p.95 · 2027 gmc yukon xl fleet order guide, p.86	confirmed
RFS	API Elite plan, 36 months (fleet)	2026–2027	2027: O on all trims ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.118 · 2027 gmc yukon xl fleet order guide, p.109	confirmed
RIA	LPO, all-weather floor liner	2022–2023, 2025–2027	2027: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.28 · 2026 gmc yukon xl denali fleet order guide, p.29 · 2027 gmc yukon xl fleet order guide, p.26	confirmed
RIK	LPO, nameplates, black	2022–2023, 2025–2027	2027: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.68 · 2026 gmc yukon xl denali fleet order guide, p.70 · 2027 gmc yukon xl fleet order guide, p.61	confirmed
RM7	Wheel, spare, full-size, 17 inch (43.2 cm) steel	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.8 · 2026 gmc yukon xl denali fleet order guide, p.9 · 2027 gmc yukon xl fleet order guide, p.8	confirmed
RN2	LPO, illuminated front GMC emblem	2022–2023, 2025–2027	2027: Elevation, AT4, AT4 Ultimate, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.33 · 2026 gmc yukon xl denali fleet order guide, p.35 · 2027 gmc yukon xl fleet order guide, p.31	confirmed
RPU	Wheel, 22 x 9 aluminum, design 15	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12	confirmed
RSL	Wheels, 20 x 9 (50.8 cm x 22.9 cm), machined and painted Talos Bronze Metallic	2025–2026	2026: AT4 Ultimate: S ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.17 · 2026 gmc yukon xl denali fleet order guide, p.18	confirmed
RSR	Rear seat reminder (door-activated)	2022–2023, 2026–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2026 gmc yukon xl denali fleet order guide, p.5 · 2027 gmc yukon xl fleet order guide, p.5	confirmed
RTL	Wheels, 20 x 9 (50.8 cm x 22.9 cm), 6-spoke multi-dimensional polished aluminum	2022–2023, 2025–2027	2027: Denali: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.17 · 2026 gmc yukon xl denali fleet order guide, p.18 · 2027 gmc yukon xl fleet order guide, p.16	confirmed
RVG	Trailer harness adapter (accessory)	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.8	confirmed
RWS	Floor mats, carpeted (accessory)	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12	confirmed
RWU	LPO, cargo area organizer, collapsible	2022–2023, 2025–2026	2025: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.29 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.8	confirmed
RXH	Wheel center caps, design 1 (accessory)	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.8	confirmed
RXJ	Wheel center caps, design 2 (accessory)	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.8	confirmed
RYT	First aid kit (accessory)	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12	confirmed
RZ9	LPO, grille, black with chrome surround and black GMC emblem	2022–2023, 2025–2027	2027: Elevation: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.68 · 2026 gmc yukon xl denali fleet order guide, p.70 · 2027 gmc yukon xl fleet order guide, p.61	confirmed
S08	LPO, highway safety kit	2022–2023, 2025–2026	2025: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.29 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.8	confirmed
S0M	LPO, door sill plates, illuminated	2022–2023, 2025–2027	2027: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.29 · 2026 gmc yukon xl denali fleet order guide, p.30 · 2027 gmc yukon xl fleet order guide, p.26	confirmed
S1O	LPO, console-mounted safe	2022–2023, 2025–2027	2027: Elevation, AT4, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.29 · 2026 gmc yukon xl denali fleet order guide, p.30 · 2027 gmc yukon xl fleet order guide, p.26	confirmed
S1V	Rear-seat entertainment headphones (accessory)	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12	confirmed
S2B	Spare wheel, 17 x 7-inch aluminum	2022, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.8	confirmed
S3I	LPO, illuminated mirror GMC emblem	2022–2023, 2025–2027	2027: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.69 · 2026 gmc yukon xl denali fleet order guide, p.71 · 2027 gmc yukon xl fleet order guide, p.62	confirmed
S45	Lug nut and wheel lock kit (accessory)	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.8	confirmed
S47	Lug nuts (accessory)	2022–2023, 2025–2026	2025: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.33 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.8	confirmed
S4W	Lug nut and wheel lock kit, design 2 (accessory)	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.8	confirmed
S4X	LPO, mirror caps, black	2022–2023, 2025–2027	2027: Elevation, Denali, Denali Ultimate: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.68 · 2026 gmc yukon xl denali fleet order guide, p.70 · 2027 gmc yukon xl fleet order guide, p.61	confirmed
SAF	Spare tire lock	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.8 · 2026 gmc yukon xl denali fleet order guide, p.8 · 2027 gmc yukon xl fleet order guide, p.8	confirmed
SBZ	LPO, sport pedal cover kit	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S; Elevation, AT4, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.17 · 2026 gmc yukon xl denali fleet order guide, p.18 · 2027 gmc yukon xl fleet order guide, p.16	confirmed
SD3	LPO, cargo organizer, fold-flat	2022–2023, 2025–2026	2025: Elevation, AT4: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.61 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.8	confirmed
SD5	Tire pressure monitor (accessory)	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.8	confirmed
SEM	LPO, wheel, 20 inch aluminum, design 5	2022	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12	confirmed
SEV	LPO, wheels, 22 inch (55.9 cm), 6-spoke low gloss black with machined accents	2022–2023, 2025–2027	2027: Elevation, Denali, Denali Ultimate: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.34 · 2026 gmc yukon xl denali fleet order guide, p.36 · 2027 gmc yukon xl fleet order guide, p.32	confirmed
SF1	LPO, wheels, 22 inch (55.9 cm), bright chrome	2022–2023, 2025	2025: Elevation, Denali, Denali Ultimate: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.35	confirmed
SF2	LPO, wheels, 22 inch (55.9 cm), multi-spoke chrome	2022–2023, 2025	2025: Elevation, Denali, Denali Ultimate: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.36	confirmed
SFE	LPO, wheel locks	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S; Elevation, AT4, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.17 · 2026 gmc yukon xl denali fleet order guide, p.18 · 2027 gmc yukon xl fleet order guide, p.16	confirmed
SFJ	LPO, front window sunshade, reflective	2022–2023, 2025–2027	2027: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.30 · 2026 gmc yukon xl denali fleet order guide, p.30 · 2027 gmc yukon xl fleet order guide, p.26	confirmed
SFU	LPO, wheels, 22 inch (55.9 cm), bright split-spoke	2026–2027	2027: Elevation, Denali: O ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.37 · 2027 gmc yukon xl fleet order guide, p.33	confirmed
SFZ	LPO, GMC emblems, black	2022–2023, 2025–2027	2027: Elevation, AT4, AT4 Ultimate, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.32 · 2026 gmc yukon xl denali fleet order guide, p.34 · 2027 gmc yukon xl fleet order guide, p.30	confirmed
SGM	LPO, wheels, 22 inch (55.9 cm), multi-spoke gloss black	2022–2023, 2025–2027	2027: Elevation, Denali, Denali Ultimate: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.35 · 2026 gmc yukon xl denali fleet order guide, p.37 · 2027 gmc yukon xl fleet order guide, p.33	confirmed
SII	Wheels, 22 x 9 (55.9 cm x 22.9 cm), polished aluminum	2022–2023, 2025–2027	2027: Elevation, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.30 · 2026 gmc yukon xl denali fleet order guide, p.30 · 2027 gmc yukon xl fleet order guide, p.27	confirmed
SIY	Wheels, 22 x 9 (55.9 cm x 22.9 cm), 6-spoke Carbon Flash Metallic aluminum	2022–2023, 2025–2027	2027: Elevation, Denali: O; the guide wording is cut off after "aluminum with" ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.29 · 2026 gmc yukon xl denali fleet order guide, p.30 · 2027 gmc yukon xl fleet order guide, p.27	confirmed
SJB	LPO, grille, black mesh with chrome surround	2022–2023, 2025–2027	2027: Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.69 · 2026 gmc yukon xl denali fleet order guide, p.71 · 2027 gmc yukon xl fleet order guide, p.62	confirmed
SMI	Wheels, 22 x 9 (55.9 cm x 22.9 cm), ultra-bright machined and painted Midnight Silver	2025–2027	2027: Denali: O ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.30 · 2026 gmc yukon xl denali fleet order guide, p.31 · 2027 gmc yukon xl fleet order guide, p.27	confirmed
SMR	Wheels, 22 inch (55.9 cm), 7-spoke, ultra-bright machined with bright chrome inserts	2023, 2025–2026	2026: Denali Ultimate: O; the guide wording is cut off after "inserts and" ⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.30 · 2026 gmc yukon xl denali fleet order guide, p.31	confirmed
SPY	LPO, lug nuts, black	2022–2023, 2025–2027	2027: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.33 · 2026 gmc yukon xl denali fleet order guide, p.34 · 2027 gmc yukon xl fleet order guide, p.30	confirmed
SPZ	LPO, wheel locks, black	2022–2023, 2025–2027	2027: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.34 · 2026 gmc yukon xl denali fleet order guide, p.36 · 2027 gmc yukon xl fleet order guide, p.32	confirmed
SRL	LPO, wheels, 22 inch (55.9 cm), black with selective machining	2022–2023, 2025–2027	2027: Elevation, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.35 · 2026 gmc yukon xl denali fleet order guide, p.36 · 2027 gmc yukon xl fleet order guide, p.32	confirmed
SRV	LPO, wheels, 22 inch (55.9 cm), multi-spoke gloss black	2022–2023, 2025–2027	2027: Elevation, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.36 · 2026 gmc yukon xl denali fleet order guide, p.37 · 2027 gmc yukon xl fleet order guide, p.33	confirmed
SSI	LPO, wheels, 22 inch (55.9 cm), multi-spoke chrome	2022–2023, 2025	2025: Elevation, Denali, Denali Ultimate: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.36	confirmed
SSW	LPO, wheels, 22 inch (55.9 cm), bright multi-spoke	2022–2023, 2025–2027	2027: Elevation, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.37 · 2026 gmc yukon xl denali fleet order guide, p.38 · 2027 gmc yukon xl fleet order guide, p.34	confirmed
ST1	Latch, front and rear doors, cinching	2026	⛭ GM factory document — 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.8	confirmed
SUR	LPO, trailer tire pressure monitor	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12	confirmed
T3S	Daytime running lamps, separate cavity, LED	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12	confirmed
T40	Fog lamps, front, LED	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.7 · 2026 gmc yukon xl denali fleet order guide, p.7 · 2027 gmc yukon xl fleet order guide, p.7	confirmed
T4L	Headlamps, LED	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12	confirmed
T8Z	Buckle to Drive	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.7 · 2026 gmc yukon xl denali fleet order guide, p.7 · 2027 gmc yukon xl fleet order guide, p.7	confirmed
TAU	Rear combination lamps, uplevel	2025–2027	2027: S on all trims ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.7 · 2026 gmc yukon xl denali fleet order guide, p.7 · 2027 gmc yukon xl fleet order guide, p.7	confirmed
TB4	Liftgate, manual	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12	confirmed
TB5	Liftgate, power programmable	2025–2027	2027: Elevation: S ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.8 · 2026 gmc yukon xl denali fleet order guide, p.7 · 2027 gmc yukon xl fleet order guide, p.8	confirmed
TC2	Liftgate, power, hands-free	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12	confirmed
TCP	Liftgate, power, hands-free (AutoSense)	2025–2027	2027: AT4, AT4 Ultimate, Denali, Denali Ultimate: S ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.16 · 2026 gmc yukon xl denali fleet order guide, p.17 · 2027 gmc yukon xl fleet order guide, p.15	confirmed
TDM	Teen Driver	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.7 · 2026 gmc yukon xl denali fleet order guide, p.7 · 2027 gmc yukon xl fleet order guide, p.7	confirmed
TGE	Headlamps, upper-level type	2025–2027	2027: S on all trims ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.7 · 2026 gmc yukon xl denali fleet order guide, p.7 · 2027 gmc yukon xl fleet order guide, p.7	confirmed
THS	Trailering assist guidelines	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S; AT4, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.80 · 2026 gmc yukon xl denali fleet order guide, p.82 · 2027 gmc yukon xl fleet order guide, p.18	confirmed
TQ5	IntelliBeam automatic high beams	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.7 · 2026 gmc yukon xl denali fleet order guide, p.7 · 2027 gmc yukon xl fleet order guide, p.7	confirmed
TR1	Lamps, tail and stop	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12	confirmed
TRG	Trailer camera provisions	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S; AT4, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.80 · 2026 gmc yukon xl denali fleet order guide, p.82 · 2027 gmc yukon xl fleet order guide, p.18	confirmed
TRO	LPO, trailer camera, auxiliary, wired	2022–2023, 2025–2027	2027: AT4, AT4 Ultimate, Denali, Denali Ultimate: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.29 · 2026 gmc yukon xl denali fleet order guide, p.30 · 2027 gmc yukon xl fleet order guide, p.26	confirmed
U05	Horns, dual	2026	⛭ GM factory document — 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.8	confirmed
U2K	SiriusXM with 360L	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.2 · 2026 gmc yukon xl denali fleet order guide, p.2 · 2027 gmc yukon xl fleet order guide, p.2	confirmed
U5G	5G Wi-Fi hotspot capable	2025–2027	2027: S on all trims ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.4 · 2026 gmc yukon xl denali fleet order guide, p.5 · 2027 gmc yukon xl fleet order guide, p.4	confirmed
UB3	Radio antenna, fixed, in rear spoiler	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.8	confirmed
UBC	USB ports, 2 type-A and C, charge and data, inside center console	2025–2027	2027: Elevation, AT4: S; Denali: O ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.2 · 2026 gmc yukon xl denali fleet order guide, p.2 · 2027 gmc yukon xl fleet order guide, p.2	confirmed
UBD	USB ports, 2 type-A and C, charge and data, on front console	2025–2027	2027: S on all trims ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.2 · 2026 gmc yukon xl denali fleet order guide, p.2 · 2027 gmc yukon xl fleet order guide, p.2	confirmed
UCB	USB ports, 2 type-C, charge-only, third row	2025–2027	2027: S on all trims ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.2 · 2026 gmc yukon xl denali fleet order guide, p.2 · 2027 gmc yukon xl fleet order guide, p.2	confirmed
UCV	Camera, interior	2026–2027	2027: S on all trims ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.4 · 2027 gmc yukon xl fleet order guide, p.4	confirmed
UD5	Park assist, front and rear	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12	confirmed
UDV	Driver information display, full multicolor cluster	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12	confirmed
UE1	OnStar capable	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12 · 2025 gmc new yukon xl denali fleet order guide, p.4 · 2026 gmc yukon xl denali fleet order guide, p.4 · 2027 gmc yukon xl fleet order guide, p.4	confirmed
UE4	Following distance indicator	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12	confirmed
UET	Smart trailer integration indicator	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S; Elevation, AT4, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.19 · 2026 gmc yukon xl denali fleet order guide, p.20 · 2027 gmc yukon xl fleet order guide, p.18	confirmed
UEU	Forward Collision Alert	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.3 · 2026 gmc yukon xl denali fleet order guide, p.3 · 2027 gmc yukon xl fleet order guide, p.3	confirmed
UFB	Rear Cross Traffic Braking	2025–2027	2027: S on all trims ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.5 · 2026 gmc yukon xl denali fleet order guide, p.5 · 2027 gmc yukon xl fleet order guide, p.5	confirmed
UFG	Rear Cross Traffic Alert	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13	confirmed
UG1	Universal Home Remote (garage door opener)	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.8 · 2026 gmc yukon xl denali fleet order guide, p.8 · 2027 gmc yukon xl fleet order guide, p.8	confirmed
UGA	Recovery hooks, red	2022–2023, 2025–2027	2027: AT4, AT4 Ultimate: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.12 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.16 · 2026 gmc yukon xl denali fleet order guide, p.18 · 2027 gmc yukon xl fleet order guide, p.15	confirmed
UGN	Enhanced Automatic Emergency Braking	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.3 · 2026 gmc yukon xl denali fleet order guide, p.3 · 2027 gmc yukon xl fleet order guide, p.3	confirmed
UH5	Seat belt reminder, second row	2026	⛭ GM factory document — 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.9	confirmed
UH6	Seat belt reminder, third row	2026	⛭ GM factory document — 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.9	confirmed
UHN	Wheel, 18 x 8.5 aluminum, design 3	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13	confirmed
UHX	Lane Keep Assist	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13	confirmed
UHY	Automatic Emergency Braking, low speed	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13	confirmed
UIM	Infotainment display, 10.2 inch, normally black color TFT, full HD 1920 x 1080p	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13	confirmed
UJN	Tire pressure monitoring	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.7 · 2026 gmc yukon xl denali fleet order guide, p.8 · 2027 gmc yukon xl fleet order guide, p.7	confirmed
UK3	Steering wheel controls	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.6 · 2026 gmc yukon xl denali fleet order guide, p.7 · 2027 gmc yukon xl fleet order guide, p.6	confirmed
UKC	Side Blind Zone Alert	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13	confirmed
UKI	Blind Zone Steering Assist	2025–2027	2027: Elevation, AT4, Denali: S ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.2 · 2026 gmc yukon xl denali fleet order guide, p.2 · 2027 gmc yukon xl fleet order guide, p.2	confirmed
UKJ	Front Pedestrian Braking	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13	confirmed
UKK	Rear Pedestrian Alert	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.5 · 2026 gmc yukon xl denali fleet order guide, p.5 · 2027 gmc yukon xl fleet order guide, p.5	confirmed
UKL	Super Cruise	2023, 2025–2027	2027: AT4 Ultimate, Denali, Denali Ultimate: S; Elevation, AT4: O ⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.16 · 2026 gmc yukon xl denali fleet order guide, p.17 · 2027 gmc yukon xl fleet order guide, p.15	confirmed
UKM	Lane Keep Assist with Lane Departure Warning	2025–2027	2027: Elevation, AT4: S ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.4 · 2026 gmc yukon xl denali fleet order guide, p.4 · 2027 gmc yukon xl fleet order guide, p.4	confirmed
UKT	Front Pedestrian and Bicyclist Braking	2025–2027	2027: S on all trims ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.3 · 2026 gmc yukon xl denali fleet order guide, p.3 · 2027 gmc yukon xl fleet order guide, p.3	confirmed
UKV	Side Blind Zone Alert with extended trailer coverage	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13	confirmed
UKW	Blind Zone Steering Assist with trailering	2025–2027	2027: AT4 Ultimate, Denali Ultimate: S; Elevation, AT4, Denali: O ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.13 · 2026 gmc yukon xl denali fleet order guide, p.14 · 2027 gmc yukon xl fleet order guide, p.13	confirmed
UKZ	Enhanced Automatic Parking Assist	2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.3 · 2026 gmc yukon xl denali fleet order guide, p.3 · 2027 gmc yukon xl fleet order guide, p.3	confirmed
ULM	Driver Attention Assist	2025–2027	2027: AT4 Ultimate, Denali, Denali Ultimate: S; Elevation, AT4: O ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.16 · 2026 gmc yukon xl denali fleet order guide, p.17 · 2027 gmc yukon xl fleet order guide, p.15	confirmed
UOW	Side Bicyclist Alert	2025–2027	2027: S on all trims ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.6 · 2026 gmc yukon xl denali fleet order guide, p.6 · 2027 gmc yukon xl fleet order guide, p.6	confirmed
UQA	Speaker system, premium audio	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13	confirmed
UQF	Speaker system, standard audio	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13	confirmed
UQP	Audio system feature, Bose 18-speaker Surround with CenterPoint	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.12 · 2026 gmc yukon xl denali fleet order guide, p.12 · 2027 gmc yukon xl fleet order guide, p.12	confirmed
UQS	Audio system feature, Bose 10-speaker Surround with CenterPoint	2025–2027	2027: Elevation, AT4, Denali: S ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.2 · 2026 gmc yukon xl denali fleet order guide, p.2 · 2027 gmc yukon xl fleet order guide, p.2	confirmed
URG	Driver Information Center, 11 inch diagonal, multicolor digital high-contrast display with local backlight dimming	2025–2027	2027: S on all trims ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.3 · 2026 gmc yukon xl denali fleet order guide, p.3 · 2027 gmc yukon xl fleet order guide, p.3	confirmed
URR	Audio system, 16.8 inch diagonal GMC Premium infotainment system with Google built-in	2025–2027	2027: S on all trims ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.2 · 2026 gmc yukon xl denali fleet order guide, p.2 · 2027 gmc yukon xl fleet order guide, p.2	confirmed
USR	USB port	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13	confirmed
USS	USB charge port	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13	confirmed
UTJ	Theft-deterrent system	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.7 · 2026 gmc yukon xl denali fleet order guide, p.7 · 2027 gmc yukon xl fleet order guide, p.7	confirmed
UTR	Content theft alarm with self-powered horn	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S; AT4, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.16 · 2026 gmc yukon xl denali fleet order guide, p.17 · 2027 gmc yukon xl fleet order guide, p.15	confirmed
UTU	Intrusion sensor, vehicle inclination	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S; AT4, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.14 · 2026 gmc yukon xl denali fleet order guide, p.16 · 2027 gmc yukon xl fleet order guide, p.14	confirmed
UTV	Intrusion sensor, interior movement	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S; AT4, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.14 · 2026 gmc yukon xl denali fleet order guide, p.16 · 2027 gmc yukon xl fleet order guide, p.14	confirmed
UTW	Intrusion sensor, glass breakage	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S; AT4, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.14 · 2026 gmc yukon xl denali fleet order guide, p.16 · 2027 gmc yukon xl fleet order guide, p.14	confirmed
UUA	Display, occupant sensing, MVSS	2026	⛭ GM factory document — 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.9	confirmed
UV2	HD Surround Vision	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.3 · 2026 gmc yukon xl denali fleet order guide, p.4 · 2027 gmc yukon xl fleet order guide, p.4	confirmed
UV3	Night Vision	2025–2026	2026: AT4 Ultimate, Denali Ultimate: O ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.24 · 2026 gmc yukon xl denali fleet order guide, p.25	confirmed
UV6	Head-up display	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali, Denali Ultimate: S; Elevation, AT4: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.13 · 2026 gmc yukon xl denali fleet order guide, p.14 · 2027 gmc yukon xl fleet order guide, p.13	confirmed
UVB	HD rear vision camera	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13	confirmed
UVX	Traffic Sign Recognition	2025–2027	2027: S on all trims ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.7 · 2026 gmc yukon xl denali fleet order guide, p.8 · 2027 gmc yukon xl fleet order guide, p.7	confirmed
UVZ	Reverse Automatic Braking	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.5 · 2026 gmc yukon xl denali fleet order guide, p.5 · 2027 gmc yukon xl fleet order guide, p.5	confirmed
UW9	Rear seat media system	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S; Elevation, AT4, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.12 · 2026 gmc yukon xl denali fleet order guide, p.13 · 2027 gmc yukon xl fleet order guide, p.12	confirmed
V03	Cooling system, extra capacity	2022–2023, 2025–2027	2027: AT4 Ultimate, Denali Ultimate: S; Elevation, AT4, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.18 · 2026 gmc yukon xl denali fleet order guide, p.19 · 2027 gmc yukon xl fleet order guide, p.17	confirmed
V54	Roof rack side rails	2022–2023, 2025–2027	2027: AT4, AT4 Ultimate: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.16 · 2026 gmc yukon xl denali fleet order guide, p.18 · 2027 gmc yukon xl fleet order guide, p.15	confirmed
V55	Roof rack side rails, bright	2022–2023, 2025–2027	2027: Elevation, Denali, Denali Ultimate: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.8 · 2026 gmc yukon xl denali fleet order guide, p.8 · 2027 gmc yukon xl fleet order guide, p.8	confirmed
VAV	LPO, floor mats, all-weather	2022–2023, 2025–2026	2026: Elevation, AT4, AT4 Ultimate: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.60 · 2026 gmc yukon xl denali fleet order guide, p.62	confirmed
VHM	Vehicle health monitoring (prognostics)	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.9	confirmed
VK3	Front license plate bracket	2022–2023, 2025–2027	2027: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.27 · 2026 gmc yukon xl denali fleet order guide, p.29 · 2027 gmc yukon xl fleet order guide, p.25	confirmed
VKU	Mirror caps, chrome (accessory)	2022–2023, 2025–2027	2027: Elevation, Denali, Denali Ultimate: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.68 · 2026 gmc yukon xl denali fleet order guide, p.70 · 2027 gmc yukon xl fleet order guide, p.61	confirmed
VQK	LPO, front and rear black molded splash guards	2022–2023, 2025–2027	2027: Elevation, AT4, Denali: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.69 · 2026 gmc yukon xl denali fleet order guide, p.35 · 2027 gmc yukon xl fleet order guide, p.31	confirmed
VQQ	LPO, roof rack cross rails, black	2022–2023, 2025–2027	2027: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.33 · 2026 gmc yukon xl denali fleet order guide, p.34 · 2027 gmc yukon xl fleet order guide, p.30	confirmed
VQZ	LPO, polished exhaust tip	2022–2023, 2025–2027	2027: Elevation: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.70 · 2026 gmc yukon xl denali fleet order guide, p.72 · 2027 gmc yukon xl fleet order guide, p.63	confirmed
VRS	LPO, cargo shade	2022–2023, 2025–2027	2027: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.60 · 2026 gmc yukon xl denali fleet order guide, p.63 · 2027 gmc yukon xl fleet order guide, p.53	confirmed
VSY	LPO, engine block heater	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13	confirmed
VTA	LPO, exhaust tip, black	2022–2023, 2025–2027	2027: Elevation: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.67 · 2026 gmc yukon xl denali fleet order guide, p.69 · 2027 gmc yukon xl fleet order guide, p.60	confirmed
VTB	LPO, rear bumper protector	2022–2023, 2025–2027	2027: Elevation, Denali, Denali Ultimate: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.34 · 2026 gmc yukon xl denali fleet order guide, p.35 · 2027 gmc yukon xl fleet order guide, p.31	confirmed
VTI	Active aero grille shutters	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.6 · 2026 gmc yukon xl denali fleet order guide, p.6 · 2027 gmc yukon xl fleet order guide, p.6	confirmed
VV4	Wi-Fi hotspot capable	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.4 · 2026 gmc yukon xl denali fleet order guide, p.5 · 2027 gmc yukon xl fleet order guide, p.5	confirmed
VW9	Wheel center caps, design 3 (accessory)	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.10	confirmed
VWD	Wheel center caps, design 4 (accessory)	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.10	confirmed
W2D	LPO, cargo net, vertical	2022–2023, 2025–2027	2027: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.61 · 2026 gmc yukon xl denali fleet order guide, p.63 · 2027 gmc yukon xl fleet order guide, p.54	confirmed
WBC	LPO, cat-back performance exhaust	2022–2023, 2025–2027	2027: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.41 · 2026 gmc yukon xl denali fleet order guide, p.42 · 2027 gmc yukon xl fleet order guide, p.37	confirmed
WMI	Grille shutters, active, upper and lower	2022–2023, 2025–2027	2027: Elevation, Denali, Denali Ultimate: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2025 gmc new yukon xl denali fleet order guide, p.62 · 2026 gmc yukon xl denali fleet order guide, p.64 · 2027 gmc yukon xl fleet order guide, p.55	confirmed
WTX	Front fascia, standard	2022–2023, 2025–2027	2027: Elevation, Denali, Denali Ultimate: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.14 · 2025 gmc new yukon xl denali fleet order guide, p.7 · 2026 gmc yukon xl denali fleet order guide, p.7 · 2027 gmc yukon xl fleet order guide, p.7	confirmed
WUA	Fascia, front, high-approach angle	2022–2023, 2025–2027	2027: AT4, AT4 Ultimate: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.14 · 2025 gmc new yukon xl denali fleet order guide, p.15 · 2026 gmc yukon xl denali fleet order guide, p.16 · 2027 gmc yukon xl fleet order guide, p.15	confirmed
XCG	Tires, 275/50R22 all-season	2022–2023, 2025–2027	2027: Elevation, Denali, Denali Ultimate: O ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.14 · 2025 gmc new yukon xl denali fleet order guide, p.64 · 2026 gmc yukon xl denali fleet order guide, p.66 · 2027 gmc yukon xl fleet order guide, p.56	confirmed
XCI	Tires, 275/60R20SL all-season, blackwall	2022–2023, 2025–2027	2027: Elevation, Denali: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.14 · 2025 gmc new yukon xl denali fleet order guide, p.8 · 2026 gmc yukon xl denali fleet order guide, p.8 · 2027 gmc yukon xl fleet order guide, p.8	confirmed
XCQ	Spare tire, full-size P265/70R17	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.14 · 2025 gmc new yukon xl denali fleet order guide, p.8 · 2026 gmc yukon xl denali fleet order guide, p.8 · 2027 gmc yukon xl fleet order guide, p.8	confirmed
XD6	Tires, 275/50R22 all-season (accessory)	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.14 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.10	confirmed
Z82	Trailering equipment, heavy-duty	2022–2023, 2025–2027	2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.14 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.14 · 2025 gmc new yukon xl denali fleet order guide, p.10 · 2026 gmc yukon xl denali fleet order guide, p.10 · 2027 gmc yukon xl fleet order guide, p.10	confirmed
Z95	Suspension, Magnetic Ride Control	2022–2023, 2025–2027	2027: AT4, AT4 Ultimate, Denali, Denali Ultimate: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.14 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.14 · 2025 gmc new yukon xl denali fleet order guide, p.19 · 2026 gmc yukon xl denali fleet order guide, p.20 · 2027 gmc yukon xl fleet order guide, p.18	confirmed
ZW7	Suspension, Premium Smooth Ride	2022–2023, 2025–2027	2027: Elevation: S ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.14 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.14 · 2025 gmc new yukon xl denali fleet order guide, p.10 · 2026 gmc yukon xl denali fleet order guide, p.10 · 2027 gmc yukon xl fleet order guide, p.10	confirmed

Paint

Code	Description	Years	Models/Notes	Confidence
G1W	White Frost Tricoat (touch-up WA-140X)	2022–2023, 2025	the 2022 and 2023 body-builder lists read Abalone White Tricoat (140X) ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.85	confirmed
G42	Coastal Dune (touch-up WA-234L)	2027	⛭ GM factory document — 2027 gmc yukon xl fleet order guide, p.77	confirmed
G48	Galactica Metallic (touch-up 613G)	2022–2023	the lists print Galactica Met-1 ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10	confirmed
G4J	Glacier White Tricoat (touch-up WA-241L)	2026–2027	the 2026 body-builder list reads Polar White Tri Met-1 (241L) ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.86 · 2027 gmc yukon xl fleet order guide, p.77 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.6	confirmed
G6M	Titanium Rush Metallic (touch-up WA-618G)	2022–2023, 2025–2027	the body-builder lists read Rush Met-1 ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.85 · 2026 gmc yukon xl denali fleet order guide, p.86 · 2027 gmc yukon xl fleet order guide, p.77	confirmed
G6N	Cypress Metallic (touch-up 619G)	2023	⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10	confirmed
G9K	Satin Steel Gray Metallic (touch-up 464C)	2022	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10	confirmed
GAZ	Summit White (touch-up WA-8624)	2022–2023, 2025–2027	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.85 · 2026 gmc yukon xl denali fleet order guide, p.86 · 2027 gmc yukon xl fleet order guide, p.77	confirmed
GBA	Onyx Black (touch-up WA-8555)	2022–2023, 2025–2027	the body-builder lists read Black ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.85 · 2026 gmc yukon xl denali fleet order guide, p.86 · 2027 gmc yukon xl fleet order guide, p.77	confirmed
GBD	Midnight Pine (touch-up WA-229K)	2025–2026	the 2026 body-builder list reads Aegean Solid (229K) ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.85 · 2026 gmc yukon xl denali fleet order guide, p.86 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.6	confirmed
GED	Wilder Metallic (touch-up 244F)	2022	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10	confirmed
GJW	Empire Beige Metallic (touch-up 317E)	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10	confirmed
GLU	Darkmoon Blue Metallic (touch-up 328E)	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10	confirmed
GNT	Volcanic Red Tintcoat (touch-up WA-170H)	2023, 2025–2027	the body-builder lists read Radiant Red Tint Met-1 ⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.85 · 2026 gmc yukon xl denali fleet order guide, p.86 · 2027 gmc yukon xl fleet order guide, p.77	confirmed
GSK	Cherry Pop Tint (touch-up 252F)	2022	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10	confirmed
GXD	Sterling Metallic (touch-up WA-130H)	2023, 2025–2027	the body-builder lists read Sharkskin Met-1 ⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.85 · 2026 gmc yukon xl denali fleet order guide, p.86 · 2027 gmc yukon xl fleet order guide, p.77	confirmed
GXP	Downpour Metallic (touch-up WA-136H)	2025–2027	the 2026 body-builder list reads Cosmonaut Met-1 ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.85 · 2026 gmc yukon xl denali fleet order guide, p.86 · 2027 gmc yukon xl fleet order guide, p.77 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.6	confirmed

Interior Trim

Code	Description	Years	Models/Notes	Confidence
4AA	Interior trim, Jet Black	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.4	confirmed
4AI	Interior trim, Jet Black / Brownstone	2022	the 2022 list prints "testing15" after the name ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9	confirmed
4B4	Interior trim, Jet Black / Ceramic White	2026	⛭ GM factory document — 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.4	confirmed
4DK	Interior trim, Jet Black / Vecchio, base Sauvage print	2023	⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9	confirmed
4EL	Interior trim, Jet Black / Brandy	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9	confirmed
4JJ	Interior trim, Gideon / Very Dark Atmosphere	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.4	confirmed
4JX	Interior trim, Very Dark Atmosphere / Very Dark Grey	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9	confirmed
4JZ	Interior trim, Whisper Beige / Fawn	2022–2023, 2026	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.4	confirmed
4RJ	Interior trim, Jet Black / Aegean	2026	⛭ GM factory document — 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.4	confirmed
4RP	Interior trim, Jet Black / Warg Sauvage	2026	⛭ GM factory document — 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.4	confirmed
EA5	Interior trim, leather, level 4, Jet Black / Ceramic White	2025–2027	AT4 Ultimate: the 2025–2027 guides call it Obsidian Rush with Red accents, full grain leather seats ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.84 · 2026 gmc yukon xl denali fleet order guide, p.85 · 2027 gmc yukon xl fleet order guide, p.76 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.6	confirmed
EA7	Interior trim, leather, level 4, Jet Black / Warg Sauvage	2025–2027	Denali Ultimate: the 2025–2027 guides call it Woodland Mahogany, full grain leather seats ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.84 · 2026 gmc yukon xl denali fleet order guide, p.85 · 2027 gmc yukon xl fleet order guide, p.76 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.6	confirmed
EA8	Interior trim, leather, level 2, Jet Black / Aegean	2025–2027	AT4: the 2025–2027 guides call it Forest Storm with Mahogany accents, perforated leather seating surfaces ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.84 · 2026 gmc yukon xl denali fleet order guide, p.85 · 2027 gmc yukon xl fleet order guide, p.76 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.6	confirmed
H0U	Interior trim, cloth, level 2, Jet Black	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10	confirmed
H1Y	Interior trim, leather, level 2, Jet Black	2022–2023, 2025–2027	Elevation: Jet Black with CoreTec / perforated leather-appointed seating in the 2025–2027 guides ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.84 · 2026 gmc yukon xl denali fleet order guide, p.85 · 2027 gmc yukon xl fleet order guide, p.76	confirmed
H2X	Interior trim, leather, level 4, Jet Black	2022–2023, 2025–2027	Denali: Jet Black with perforated leather seating surfaces in the 2025–2027 guides ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.84 · 2026 gmc yukon xl denali fleet order guide, p.85 · 2027 gmc yukon xl fleet order guide, p.76	confirmed
HEY	Interior trim, leather, level 4, Jet Black / Vecchio	2023	⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11	confirmed
HFM	Interior trim, leather, level 4, Whisper Beige / Fawn	2022–2023, 2025–2027	Denali: the 2025–2027 guides call it Teak / Light Shale with perforated leather seating surfaces ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.84 · 2026 gmc yukon xl denali fleet order guide, p.85 · 2027 gmc yukon xl fleet order guide, p.76	confirmed
HFN	Interior trim, leather, level 4, Very Dark Atmosphere / Very Dark Grey	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11	confirmed
HI9	Interior trim, leather, level 2, Jet Black / Brandy	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11	confirmed
HV5	Interior trim, cloth, level 2, Gideon / Very Dark Atmosphere	2022–2023	⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11	confirmed
HVE	Interior trim, leather, level 2, Gideon / Very Dark Atmosphere	2022–2023, 2025–2027	Elevation: Dark Atmosphere / Gideon with CoreTec / perforated leather-appointed seating in the 2025–2027 guides ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.84 · 2026 gmc yukon xl denali fleet order guide, p.85 · 2027 gmc yukon xl fleet order guide, p.76	confirmed

Internal / Process

Code	Description	Years	Models/Notes	Confidence
00C	Identification, not equipped with wireless charging module	2022	internal code ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9	confirmed
00H	Identification, equipped with HVAC module with brushed motor	2022	internal code ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9	confirmed
00J	Identification code, sensing diagnostic module design 2	2023	internal code ⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9	confirmed
00S	Identification, not equipped with side blind zone alert	2022	internal code ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9	confirmed
00X	Identification, equipped with power window design 3	2023	internal code ⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9	confirmed
00Z	Identification, not equipped with front and rear park assist	2023	internal code ⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9	confirmed
02O	Identification, not equipped with Super Cruise and high speed collision imminent braking	2023	internal code ⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9	confirmed
07Z	Identification, not equipped with adaptive cruise	2023	internal code ⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9	confirmed
65C	Label, California Prop 65 warning	2022–2023, 2026	internal code ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.4	confirmed
ARL	Assembly plant, Arlington, Texas	2022–2023, 2026	internal code ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.9 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.5	confirmed
AXP	Vehicle type, multipurpose passenger vehicle	2022–2023, 2026	internal code ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.9 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.5	confirmed
DNS	Supplier-installed equipment	2026	internal code ⛭ GM factory document — 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.6	confirmed
FE9	Emissions, federal	2022–2023, 2025–2027	internal code 2027: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.38 · 2026 gmc yukon xl denali fleet order guide, p.39 · 2027 gmc yukon xl fleet order guide, p.35	confirmed
FHX	Fuel, diesel B20 capable	2022–2023, 2025–2027	internal code 2027: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.79 · 2026 gmc yukon xl denali fleet order guide, p.80 · 2027 gmc yukon xl fleet order guide, p.70	confirmed
FJW	Fuel, gasoline E15 capable	2022–2023, 2025–2027	internal code 2027: S on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10 · 2025 gmc new yukon xl denali fleet order guide, p.10 · 2026 gmc yukon xl denali fleet order guide, p.10 · 2027 gmc yukon xl fleet order guide, p.10	confirmed
J22	Engineering year 2022	2022	internal code ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11	confirmed
J23	Engineering year 2023	2023	internal code ⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11	confirmed
J26	Engineering year 2026	2026	internal code ⛭ GM factory document — 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.6	confirmed
MAH	Market area, United States, Puerto Rico and U.S. Virgin Islands	2022–2023, 2026	internal code ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.7	confirmed
NB8	Emissions override, California	2025–2027	internal code 2027: O on all trims ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.39 · 2026 gmc yukon xl denali fleet order guide, p.40 · 2027 gmc yukon xl fleet order guide, p.35	confirmed
NB9	Emissions override, state-specific	2025–2027	internal code 2027: O on all trims ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.39 · 2026 gmc yukon xl denali fleet order guide, p.40 · 2027 gmc yukon xl fleet order guide, p.35	confirmed
NC7	Emissions override, federal	2025–2027	internal code 2027: O on all trims ⛭ GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.40 · 2026 gmc yukon xl denali fleet order guide, p.41 · 2027 gmc yukon xl fleet order guide, p.36	confirmed
NE1	Emissions, states that follow California rules	2022–2023, 2025–2027	internal code 2027: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11 · 2025 gmc new yukon xl denali fleet order guide, p.38 · 2026 gmc yukon xl denali fleet order guide, p.39 · 2027 gmc yukon xl fleet order guide, p.35	confirmed
NL3	Emission system, ULEV70/BIN70, California LEV4, federal Tier 3, 0K-8.5K GVW LDV, 8.5K-10K GVW MDPV	2026	internal code ⛭ GM factory document — 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.7	confirmed
NL8	Emission system, ULEV50/Bin 50	2026	internal code ⛭ GM factory document — 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.7	confirmed
NLB	Emission system, SULEV30/BIN30, California LEV4, federal Tier 3, 0K-8.5K GVW LDV, 8.5K-10K GVW MDPV	2026	internal code ⛭ GM factory document — 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.7	confirmed
NSS	Identification, not equipped with stop/start system	2022	internal code ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11	confirmed
NTB	Emission system, federal Tier 3	2022–2023	internal code ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11	confirmed
NUC	Emission system, California ULEV50	2022–2023	internal code ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11	confirmed
NUF	Emission system, California ULEV125	2022–2023	internal code ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11	confirmed
UMN	Speedometer calibration, miles and kilometers (miles odometer)	2022–2023, 2026	internal code ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.9	confirmed
V8D	Vehicle label content, U.S. safety standards	2022–2023, 2026	internal code ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.9	confirmed
VFF	Video format, region 1 (NTSC)	2022–2023, 2026	internal code ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.9	confirmed
VGC	Protective film against paint etching (shipping)	2022–2023, 2026	internal code ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.9	confirmed
VPH	Preparation for overseas delivery	2022–2023, 2026	internal code ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.9	confirmed
VPV	Ship-thru: built at Arlington, sent to Kerr Industries, returned to Arlington	2026–2027	internal code 2027: AT4, AT4 Ultimate, Denali, Denali Ultimate: O ⛭ GM factory document — 2026 gmc yukon xl denali fleet order guide, p.87 · 2027 gmc yukon xl fleet order guide, p.78	confirmed
VR6	Tie-down hooks for shipping	2022–2023, 2026	internal code ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.9	confirmed
VSX	Label, towing	2022–2023, 2026	internal code ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.9	confirmed
VT7	Owner's manual, English	2022–2023, 2026	internal code ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.9	confirmed
WMW	VIN model year 2022	2022	internal code ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13	confirmed
WMX	VIN model year 2023	2023	internal code ⛭ GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13	confirmed
WNO	VIN model year 2026	2026	internal code ⛭ GM factory document — 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.10	confirmed
XL8	Remote frequency, 433 MHz	2022–2023, 2026	internal code ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.14 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.10	confirmed
YF5	Emissions, California	2022–2023, 2025–2027	internal code 2027: O on all trims ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.14 · 2025 gmc new yukon xl denali fleet order guide, p.38 · 2026 gmc yukon xl denali fleet order guide, p.39 · 2027 gmc yukon xl fleet order guide, p.35	confirmed
Z88	Market brand, GMC	2022–2023, 2026	internal code ⛭ GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.14 · 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.14 · 2026 gmc yukon yukon xl electrical body builder manual service manual 2026 en us, p.10	confirmed

Sources

Factory documents (T1)

gmc/2022-gmc-22-yukon-yukon-xl-electrical-body-builder-sm-u-2021oct13.txt — GMC Yukon and Yukon XL ELECTRICAL Section (GM Upfitter), RPO code list pp.9-14 — https://www.gmupfitter.com/wp-content/uploads/2021/10/22_Yukon_Yukon_XL_Electrical_Body_Builder_SM_U_2021OCT13.pdf
gmc/2023-gmc-23-yukon-yukon-xl-electrical-body-builder-sm-en-us-092822.txt — GMC Yukon and Yukon XL ELECTRICAL Section (listed for model years 2023, 2024) (GM Upfitter), RPO code list pp.9-14 — https://www.gmupfitter.com/wp-content/uploads/2022/09/23_Yukon_Yukon_XL_Electrical_Body_Builder_SM_en_US_092822.pdf
gmc/2025-gmc-new-yukon-xl-denali-fleet-order-guide.txt — 2025 GMC New Yukon XL / Denali — GM Fleet Order Guide (Print All)
gmc/2026-gmc-yukon-xl-denali-fleet-order-guide.txt — 2026 GMC Yukon XL / Denali — GM Fleet Order Guide (Print All)
gmc/2026-gmc-yukon-yukon-xl-electrical-body-builder-manual-service-manual-2026-en-us.txt — GMC Yukon and Yukon XL ELECTRICAL Section (GM Upfitter), RPO code list pp.4-11 — https://www.gmupfitter.com/wp-content/uploads/2025/09/Yukon-Yukon-XL-Electrical-Body-Builder-Manual-Service-Manual-2026_en_US.pdf
gmc/2027-gmc-yukon-xl-fleet-order-guide.txt — 2027 GMC Yukon XL — GM Fleet Order Guide (Print All)

The RPO Codes dialogs captured with each fleet order guide (the …-fleet-order-guide-rpo-codes.txt files) and the Print All guides' own RPO CODES pages list the same codes; the Print All guides were cited because they also give trim availability and the COLOR AND TRIM pages.

Other sources

NICB VIN manual 2021, GM section, p.175 (docs/reference/nicb/nicb2021-gm.txt) — Yukon XL trim VIN codes for 2021 (SLE, SLT, AT4, Denali), context only
NICB VIN manual 2026, GM section, pp.156-157 (docs/reference/nicb/nicb2026-gm.txt) — Yukon XL trim VIN codes for 2025 and 2026 (Elevation, AT4, AT4 Ultimate, Denali, Denali Ultimate), context only
No web pages were fetched for this doc (2026-10-08); GM Authority was not used, so every row rests on the factory documents above.