Rendered verbatim from the reference. Factory citations shown as ⛭ GM Heritage — …. For filtering, badges, and crosslinks, use the interactive XT4 — E2 (2019–2025) page.

Cadillac XT4 — E2 (2019–2025)

The NICB VIN manuals list the Cadillac XT4 for every model year from 2019 through 2025: Base, Luxury and Sport in the 2019 table (the 2020 table relabels its 2019 column as Luxury, Premium Luxury and Sport), Luxury, Premium Luxury and Sport in 2020 through 2024, and Premium Luxury and Sport in 2025, each with front-wheel and all-wheel drive. The only factory list in the archive is the 2025 GM Fleet Order Guide (published August 22, 2025), which covers the 2.0L turbo 4 cylinder engine with a 9 speed automatic in Premium Luxury (1SD, 1SE) and Sport (1SF, 1SG); every row below is 2025. No factory list is in the archive for 2019 through 2024, so those years rest on the NICB tables alone.

Codes

Engines

Code	Description	Years	Models/Notes	Confidence
LSY	Engine, 2.0L turbo, 4 cylinder, SIDI	2025	Premium Luxury, Sport: S; 235 hp at 5000 rpm, 258 lb-ft at 1500–4000 rpm ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.6 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed

Transmissions

Code	Description	Years	Models/Notes	Confidence
M3H	Transmission, 9 speed automatic, electronically controlled	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.6 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed

Axles

Code	Description	Years	Models/Notes	Confidence
F48	Drivetrain, all-wheel drive	2025	1SE, 1SG: S; 1SD, 1SF: not available ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.6 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
FHB	Axle, 3.47 ratio	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.6 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
FWD	Drivetrain, front-wheel drive	2025	1SD, 1SF: S; 1SE, 1SG: not available ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.6 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed

Packages & Trims

Code	Description	Years	Models/Notes	Confidence
1SD	Trim group, Premium Luxury, FWD	2025	model 6ZC26; the guide's FWD and F48 rows show 1SD as FWD; only in: Premium Luxury ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.1	confirmed
1SE	Trim group, Premium Luxury, AWD	2025	model 6ZC26; the guide's FWD and F48 rows show 1SE as AWD; only in: Premium Luxury ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.1	confirmed
1SF	Trim group, Sport, FWD	2025	model 6ZE26; the guide's FWD and F48 rows show 1SF as FWD; only in: Sport ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.1	confirmed
1SG	Trim group, Sport, AWD	2025	model 6ZE26; the guide's FWD and F48 rows show 1SG as AWD; only in: Sport ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.1	confirmed
5WF	LPO, battery protection package	2025	Premium Luxury, Sport: O; includes battery tender, 110V plug-in cord and carrying case with logo ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.12 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
AS2	Active safety package	2025	Premium Luxury, Sport: S; includes KSG, UKM, UXP, UKK, UOW, UVX, UGN, UVZ and CTB ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.1 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
CWM	Technology package	2025	Premium Luxury, Sport: O; includes UV6, DRZ, CWA, N38 and K4C ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.8 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
PCP	LPO, Onyx Lite package	2025	Premium Luxury: not available; Sport: O; includes 5JW wheels, 5ZC center cap, RIK nameplate and SFZ emblems; not with PDL, PDJ or PDK ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.10 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
PDB	LPO, Onyx package	2025	Premium Luxury: O; Sport: not available; includes RZ9 grille, 5JW wheels, 5ZC center cap, RIK nameplate and SFZ emblems; not with PDV, PDL, PDJ or PDK ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.10 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
PDF	LPO, floor liner package	2025	Premium Luxury, Sport: O; includes RIA and CAV; not with PDH or PDY ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.8 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
PDH	LPO, interior protection package	2025	Premium Luxury, Sport: O; includes VAV and CAV; not with PDF ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.8 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
PDJ	LPO, Bronze accent package	2025	Premium Luxury, Sport: O; includes SB9, SFZ, SSJ, 5ZD, SJ9 and RIK ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.10 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
PDK	LPO, Red accent package	2025	Premium Luxury, Sport: O; includes SB9, SFZ, SKX, 5ZE, SJ9 and RIK ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.10 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
PDL	LPO, Blue accent package	2025	Premium Luxury, Sport: O; includes SB9, SFZ, 5JW, 5ZF, SJ9 and RIK ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.10 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
PDV	LPO, Radiant package	2025	Premium Luxury: O; Sport: not available; includes SFZ emblems, SJA grille and SSE wheels; not with PDB, PDL, PDJ or PDK ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.10 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
PDY	LPO, premium carpet package	2025	Premium Luxury, Sport: O; includes VYW and W0A; not with PDF ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.8 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
SB9	LPO, body decal package	2025	Premium Luxury, Sport: O; Bronze with PDJ, Red with PDK, Blue with PDL; included only with those packages ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.24 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
V92	Trailering package	2025	Premium Luxury, Sport: O; includes V08 heavy-duty cooling and VR2 trailer hitch receiver ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.12 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
WPC	Comfort and convenience package	2025	Premium Luxury, Sport: O; includes A7K, AF6, AKE and KU9; requires Y19 and a listed interior color ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.8 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
Y19	Cold weather package	2025	Premium Luxury, Sport: O; includes KA1, KA6 and KI3 ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.8 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed

Equipment

Code	Description	Years	Models/Notes	Confidence
4G7	Wheel, spare, 17" (43.2 cm) steel	2025	Premium Luxury, Sport: O; not with KTI ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.11 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
5JW	LPO, wheels, 20" (50.8 cm) Multi-Spoke Reverse Rim alloy, Low Gloss Black finish	2025	Premium Luxury, Sport: O; included only with PDB, PCP or PDL ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.23 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
5RU	LPO, sill plate, rear cargo, illuminated	2025	Premium Luxury, Sport: O ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.9 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
5ZB	LPO, wheel center cap, Bright	2025	Premium Luxury, Sport: O; included only with SSE ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.23 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
5ZC	LPO, wheel center cap, Black	2025	Premium Luxury, Sport: O; included only with PDB (Premium Luxury) or PCP (Sport) ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.23 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
5ZD	LPO, wheel center cap, Bronze	2025	Premium Luxury, Sport: O; included only with SSJ ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.23 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
5ZE	LPO, wheel center cap, Red	2025	Premium Luxury, Sport: O; included only with SKX ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.23 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
5ZF	LPO, wheel center cap, Blue	2025	Premium Luxury, Sport: O; included only with PDL ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.23 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
A2X	Seat adjuster, driver 8 way power	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.3 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
A45	Memory, driver, recalls 2 presets for 8 way power driver seat and outside mirror	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.2 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
A7J	Seat adjuster, passenger 6 way power	2025	Premium Luxury, Sport: S; upgradeable to A7K with WPC ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.7 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
A7K	Seat adjuster, passenger 8 way power	2025	Premium Luxury, Sport: O; included only with WPC ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.18 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
AF6	Seat, driver power lumbar massage	2025	Premium Luxury, Sport: O; included only with WPC ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.18 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
AHE	Seat, driver power seatback bolster	2025	Premium Luxury: not available; Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.3 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
AHH	Seat, front passenger power seatback bolster	2025	Premium Luxury: not available; Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.3 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
AJC	Head restraints, front, 2 way adjustable (up/down)	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.2 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
AKE	Seat, front passenger power lumbar massage	2025	Premium Luxury, Sport: O; included only with WPC ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.18 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
AL0	Airbag, passenger sensing system, sensor indicator inflatable restraint, front passenger and child presence detector	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.1 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
AR9	Seats, front bucket	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.4 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
ASV	Sensor, cabin humidity	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.4 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
ATH	Keyless access, passive entry	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.2 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
AVK	Seat, driver power lumbar control, 4 way	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.3 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
AVU	Seat, front passenger power lumbar control, 4 way	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.4 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
AYR	Head restraints, rear, adjustable, folding	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.2 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
AYX	Airbags, dual stage frontal, knee and seat-mounted side impact for driver and front passenger, head curtain for all outboard seating positions, rollover protection	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.1 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
B6K	Sill plate cover, Bright finish, front door opening	2025	Premium Luxury: S; Sport: not available ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.4 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
B72	Sill plate cover, Sport finish, front door opening	2025	Premium Luxury: not available; Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.4 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
BB4	Floor mats, premium carpeted, front and rear	2025	Premium Luxury, Sport: S; deleted when VYW is ordered ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.2 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
C25	Wiper, rear intermittent	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.6 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
C3U	Sunroof, power, dual panel glass, tilt and sliding	2025	Premium Luxury, Sport: O ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.9 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
C59	Air vents, rear	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.1 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
CAV	LPO, cargo liner, integrated	2025	Premium Luxury, Sport: O; included only with PDF or PDH; GM listed it as "Cargo liner, LPO" before 2024-10-21 ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.16 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
CE1	Wipers, front intermittent, Rainsense	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.6 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
CJ2	Air conditioning, dual zone automatic climate control	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.1 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
CTB	Intersection automatic emergency braking	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.6 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
CWA	Rear camera mirror washer	2025	Premium Luxury, Sport: O; included only with CWM ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.16 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
D42	Cargo shade, rear	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.2 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
D75	Door handles, body-color	2025	Premium Luxury: not available; Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.4 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
DD8	Mirror, inside rearview, auto-dimming	2025	Premium Luxury, Sport: S; upgradeable to DRZ with CWM ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.7 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
DRZ	Rear camera mirror	2025	Premium Luxury, Sport: O; included only with CWM ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.16 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
DYX	Mirrors, outside, heated power-adjustable, power-folding, driver-side auto-dimming, body-color with integrated turn signal indicators	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.5 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
F45	Active sport suspension, with continuous damping control	2025	Premium Luxury: not available; Sport: O ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.11 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
GGC	Grille, Sport, high-gloss Black mesh	2025	Premium Luxury: not available; Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.4 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
HD7	Door handles, illuminated, body-color with Satin chrome accents	2025	Premium Luxury: S; Sport: not available ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.4 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
HS1	Safety alert seat	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.3 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
IVD	Infotainment, Google built-in, curved 33" diagonal advanced color LED display	2025	Premium Luxury, Sport: S; navigation, connected apps, driver profiles, voice recognition, wireless phone projection ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.1 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
J61	Brakes, 4 wheel antilock, 4 wheel disc	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.6 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
J71	Brake, electronic parking	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.6 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
JF5	Pedals, sport alloy	2025	Premium Luxury: not available; Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.3 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
K03	Engine block heater, 110V	2025	Premium Luxury, Sport: O ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.12 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
K4C	Wireless phone charging	2025	Premium Luxury, Sport: O; included only with CWM ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.20 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
KA1	Seats, heated, driver and front passenger	2025	Premium Luxury, Sport: O; included only with Y19 ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.18 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
KA6	Seats, heated, rear outboard seating positions	2025	Premium Luxury, Sport: O; included only with Y19 ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.19 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
KBC	Steering wheel, paddle shift controls	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.4 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
KI3	Steering wheel, heated	2025	Premium Luxury, Sport: O; included only with Y19 ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.19 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
KL9	Automatic stop/start, with disable	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.6 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
KSG	Adaptive cruise control	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.2 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
KTI	Tire inflator kit	2025	Premium Luxury, Sport: S; deleted when 4G7 is ordered ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.5 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
KU9	Seats, ventilated, driver and front passenger	2025	Premium Luxury, Sport: O; included only with WPC ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.19 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
MDE	Moldings, bodyside, brushed aluminum finish, window surround	2025	Premium Luxury: S; Sport: not available ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.5 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
MFI	Moldings, bodyside, gloss Black finish, window surround	2025	Premium Luxury: not available; Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.5 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
N37	Steering column, manual rake and telescoping	2025	Premium Luxury, Sport: S; upgradeable to N38 with CWM ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.7 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
N38	Steering column, power rake and telescoping	2025	Premium Luxury, Sport: O; included only with CWM ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.19 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
NK4	Steering wheel, leather-wrapped, Sport	2025	Premium Luxury: not available; Sport: S; added to the guide 2024-08-26 ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.4 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
NKC	Active noise cancellation	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.1 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
P0J	OnStar Security, 24 months of service	2025	Premium Luxury, Sport: O; requires UE1; US fleet or government order types only ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.31 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
P0K	OnStar Security, 36 months of service	2025	Premium Luxury, Sport: O; requires UE1; US fleet or government order types only ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.31 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
P0L	OnStar Security, 48 months of service	2025	Premium Luxury, Sport: O; requires UE1; US fleet or government order types only ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.32 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
P0Q	OnStar Security, 60 months of service	2025	Premium Luxury, Sport: O; requires UE1; US fleet or government order types only ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.32 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
P0U	OnStar Security, 12 months of service	2025	Premium Luxury, Sport: O; requires UE1; US fleet or government order types only ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.30 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
P0V	OnStar Insights, 12 months of service	2025	Premium Luxury, Sport: O; requires UE1; US fleet or government order types only ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.33 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
P0W	OnStar Insights, 24 months of service	2025	Premium Luxury, Sport: O; requires UE1; US fleet or government order types only ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.33 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
P0X	OnStar Insights, 36 months of service	2025	Premium Luxury, Sport: O; requires UE1; US fleet or government order types only ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.33 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
P0Y	OnStar Insights, 48 months of service	2025	Premium Luxury, Sport: O; requires UE1; US fleet or government order types only ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.34 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
P0Z	OnStar Insights, 60 months of service	2025	Premium Luxury, Sport: O; requires UE1; US fleet or government order types only ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.34 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
PPW	Wireless Apple CarPlay, wireless Android Auto	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.5 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
PR6	SiriusXM, additional 9 months, SXM Platinum Plan	2025	Premium Luxury, Sport: O; requires U2K; fleet or government order types only ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.36 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
PR7	SiriusXM, additional 21 months, SXM Platinum Plan	2025	Premium Luxury, Sport: O; requires U2K; fleet or government order types only ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.36 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
PR8	SiriusXM, additional 33 months, SXM Platinum Plan	2025	Premium Luxury, Sport: O; requires U2K; fleet or government order types only ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.37 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
PXD	Wheels, 18" (45.7 cm) Split 5-Spoke alloy, Diamond Cut/Deep Space Gray finish	2025	Premium Luxury: not available; Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.5 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
PYR	Wheels, 18" (45.7 cm) Tri 5-Spoke alloy, Pearl Nickel finish	2025	Premium Luxury: S; Sport: not available ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.5 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
Q7R	Wheels, 20" (50.8 cm) Dynamic 7-Spoke alloy, Diamond Cut/Medium Android finish	2025	Premium Luxury: O; Sport: not available ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.11 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
Q86	Wheels, 20" (50.8 cm) Dynamic Multi-Spoke alloy, Diamond Cut/Dark Android finish	2025	Premium Luxury: not available; Sport: O ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.11 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
QCS	Tire, spare, T145/70R17	2025	Premium Luxury, Sport: O; included only with 4G7; replaces KTI ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.24 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
R6P	SiriusXM, 3 years	2025	Premium Luxury, Sport: O; requires U2K; TRE or SRE order types only; first listed 2024-08-05 ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.8 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
R8G	OnStar One Business Plus, 12 months of service	2025	Premium Luxury, Sport: O; requires UE1; US fleet or government order types only ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.34 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
R8P	OnStar One Business Plus, 36 months of service	2025	Premium Luxury, Sport: O; requires UE1; US fleet or government order types only ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.35 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
R8W	OnStar One Business Plus, 60 months of service	2025	Premium Luxury, Sport: O; requires UE1; US fleet or government order types only ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.36 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
R8Z	OnStar One Business Plus, 48 months of service	2025	Premium Luxury, Sport: O; requires UE1; US fleet or government order types only ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.36 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
R9L	OnStar Basics, deleted (OnStar Fleet Basics for Fleet)	2025	Premium Luxury, Sport: O; requires UE1; only for vehicles shipped to Puerto Rico, the Virgin Islands or Guam ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.17 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
R9V	Mobile Service Plus, 4 years	2025	Premium Luxury, Sport: O; dealers with BFU 284 only; not with R9Y ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.9 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
R9W	Mobile Service Plus, deleted	2025	Premium Luxury, Sport: O; dealer-margin delete code; dealers with BFU 284 only ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.9 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
R9Y	Mobile Service Plus, 1 year	2025	Premium Luxury, Sport: O; dealers with BFU 284 only; not with R9V; added 2025-05-26 ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.9 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
RFH	OnStar One Business Plus, 24 months of service	2025	Premium Luxury, Sport: O; requires UE1; US fleet or government order types only ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.35 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
RIA	LPO, floor liners, contoured	2025	Premium Luxury, Sport: O; included only with PDF; GM listed it as "All-weather floor liner" before 2024-10-21 ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.16 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
RIK	LPO, XT4 nameplate, Gloss Black, rear liftgate	2025	Premium Luxury, Sport: O; included only with PDB, PCP or the accent packages ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.23 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
RWU	LPO, cargo area organizer, collapsible	2025	Premium Luxury, Sport: O ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.9 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
RYT	LPO, first aid kit, Cadillac Edition	2025	Premium Luxury, Sport: O ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.8 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
RZ9	LPO, grille, Black surround with Black mesh	2025	Premium Luxury: O; Sport: not available; included only with PDB ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.23 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
S08	LPO, highway safety kit	2025	Premium Luxury, Sport: O ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.9 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
SFE	LPO, wheel locks, 4 locks and 1 key	2025	Premium Luxury, Sport: O; not with 5JW, SSJ or SKX ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.11 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
SFZ	LPO, emblems, Cadillac, monochrome	2025	Premium Luxury, Sport: O; included with PDB, PCP, PDV and the accent packages ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.11 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
SJ9	LPO, grille, color splash	2025	Premium Luxury, Sport: O; included only with PDL, PDJ or PDK ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.23 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
SJA	LPO, grille, Galvano surround with Galvano finish	2025	Premium Luxury: O; Sport: not available; included with PDV ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.11 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
SKO	LPO, seatback organizer	2025	Premium Luxury, Sport: O ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.9 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
SKX	LPO, wheels, 20" (50.8 cm) Multi-Spoke Reverse Rim alloy, Red finish	2025	Premium Luxury, Sport: O; included with PDK ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.11 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
SSE	LPO, wheels, 20" (50.8 cm) Multi-Spoke Reverse Rim alloy, Polished finish	2025	Premium Luxury, Sport: O; included with PDV; includes 5ZB ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.11 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
SSJ	LPO, wheels, 20" (50.8 cm) alloy, Bronze finish	2025	Premium Luxury, Sport: O; included with PDJ; includes 5ZD ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.11 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
T4L	Headlamps, LED	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.5 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
T7E	Daytime running lamps, LED	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.4 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
TC2	Liftgate, hands-free, open and close with motion sense, programmable memory height	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.5 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
TDM	Teen Driver	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.4 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
TQ5	IntelliBeam, automatic high beam on/off	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.5 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
TSQ	Lighting, interior ambient accent	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.2 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
TTW	Headlamp control, automatic on/off with tunnel detection	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.5 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
U2K	SiriusXM with 360L, trial subscription	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.2 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
U5G	5G vehicle connectivity	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.3 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
UD7	Rear park assist	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.5 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
UE1	OnStar services capable	2025	Premium Luxury, Sport: S; service plan required ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.3 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
UEU	Forward collision alert	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.2 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
UFB	Rear cross traffic braking	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.6 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
UG1	Universal home remote	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.5 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
UGC	Turn signal, front lamp, LED	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.5 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
UGN	Enhanced automatic emergency braking	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.6 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
UH5	Seat belt indicator, second row	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.4 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
UKI	Blind zone steering assist	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.2 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
UKK	Rear pedestrian alert	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.3 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
UKM	Lane keep assist with lane departure warning, enhanced	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.2 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
UKT	Front pedestrian and bicyclist braking	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.2 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
UOW	Side bicyclist alert	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.4 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
UQG	Audio system, 7 speaker	2025	Premium Luxury, Sport: S; upgradeable to UQS ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.7 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
UQS	Audio system, AKG 14 speaker	2025	Premium Luxury, Sport: O ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.8 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
UV6	Head-up display, full-color, reconfigurable	2025	Premium Luxury, Sport: O; included only with CWM ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.15 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
UVX	Traffic sign recognition, enhanced, sensor indicator	2025	Premium Luxury, Sport: S; added to the guide 2024-08-05 ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.5 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
UVZ	Reverse automatic braking	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.6 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
UXP	HD surround vision	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.2 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
V08	Cooling system, heavy-duty	2025	Premium Luxury, Sport: O; included only with V92 ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.26 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
V33	Tool kit, road emergency	2025	Premium Luxury, Sport: O; included only with 4G7; not with KTI ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.24 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
V3L	Grille, bright accents	2025	Premium Luxury: S; Sport: not available ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.4 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
V6K	Roof rails, longitudinal, brushed aluminum finish	2025	Premium Luxury: S; Sport: not available ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.5 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
VAB	Roof rails, longitudinal, gloss Black finish	2025	Premium Luxury: not available; Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.5 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
VAV	LPO, floor mats, all-weather, front and rear	2025	Premium Luxury, Sport: O; included only with PDH ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.16 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
VK3	License plate bracket, front	2025	Premium Luxury, Sport: O; forced on orders shipping to states that require a front plate ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.9 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
VQK	LPO, splash guards, molded, Black, front and rear	2025	Premium Luxury: O; Sport: not available ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.11 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
VQP	LPO, roof rack cross rails, Bright	2025	Premium Luxury: O; Sport: not available ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.11 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
VQQ	LPO, roof rack cross rails, Black	2025	Premium Luxury: not available; Sport: O ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.11 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
VR2	Trailer hitch receiver, 2 inch	2025	Premium Luxury, Sport: O; included only with V92 ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.28 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
VTI	Active aero shutters, front	2025	Premium Luxury, Sport: S; deleted when V92 is ordered ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.4 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
VV4	Wi-Fi hotspot capable	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.3 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
VYW	LPO, floor mats, premium carpeted, front and rear	2025	Premium Luxury, Sport: O; included only with PDY ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.16 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
W0A	LPO, cargo mat, premium carpet, Black	2025	Premium Luxury, Sport: O; included only with PDY ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.16 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
W2D	LPO, cargo net, vertical	2025	Premium Luxury, Sport: O; not with WH6 ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.9 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
WH6	LPO, cargo net, horizontal	2025	Premium Luxury, Sport: O; not with W2D ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.9 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
XD7	Tires, P235/60R18 all-season	2025	Premium Luxury, Sport: S ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.5 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
XD9	Tires, P245/45R20 all-season	2025	Premium Luxury, Sport: O; included only with Q7R (Premium Luxury) or Q86 (Sport) ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.24 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed

Paint

Code	Description	Years	Models/Notes	Confidence
G1W	Crystal White Tricoat	2025	Premium Luxury, Sport: O; extra charge; touch-up paint WA-140X ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.29	confirmed
G5D	Latte Metallic	2025	Premium Luxury, Sport: O; extra charge; touch-up paint WA-615G ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.29	confirmed
G6I	Emerald Lake Metallic	2025	Premium Luxury, Sport: O; extra charge; touch-up paint WA-616D ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.29	confirmed
GB8	Stellar Black Metallic	2025	Premium Luxury, Sport: O; extra charge; touch-up paint WA-384A ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.29	confirmed
GNT	Radiant Red Tintcoat	2025	Premium Luxury, Sport: O; extra charge; not with Sedona/Jet Black interior; touch-up paint WA-170H ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.29	confirmed
GXD	Argent Silver Metallic	2025	Premium Luxury, Sport: O; touch-up paint WA-130H ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.29	confirmed
GXF	Midnight Sky Metallic	2025	Premium Luxury, Sport: O; extra charge; touch-up paint WA-132H ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.29	confirmed
GXP	Deep Sea Metallic	2025	Premium Luxury, Sport: O; extra charge; touch-up paint WA-136H ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.29	confirmed

Interior Trim

Code	Description	Years	Models/Notes	Confidence
H0Y	Interior trim, Jet Black, leather seating surfaces, Luminary Precision genuine aluminum trim	2025	Premium Luxury: O; Sport: not available ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.29	confirmed
H1Y	Interior trim, Jet Black, leather seating surfaces with mini-perforated inserts, Luminary Precision genuine aluminum trim	2025	Premium Luxury: O; Sport: not available; requires WPC ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.29	confirmed
H8M	Interior trim, Oxford Stone/Jet Black, leather seating surfaces, Fineline Calico high-gloss genuine wood trim	2025	Premium Luxury: O; Sport: not available ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.29	confirmed
H8N	Interior trim, Oxford Stone/Jet Black, leather seating surfaces with mini-perforated inserts, Fineline Calico high-gloss genuine wood trim	2025	Premium Luxury: O; Sport: not available; requires WPC ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.29	confirmed
H8S	Interior trim, Jet Black with Santorini Blue accents, Inteluxe seats, Twenty Two high-gloss genuine Carbon Fiber trim	2025	Premium Luxury: not available; Sport: O ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.29	confirmed
H8T	Interior trim, Jet Black with Santorini Blue accents, leather seating surfaces with mini-perforated inserts, Twenty Two high-gloss genuine Carbon Fiber trim	2025	Premium Luxury: not available; Sport: O; requires WPC ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.29	confirmed
HRX	Interior trim, Sedona/Jet Black, leather seating surfaces with mini-perforated inserts, Linear Galaxy high-gloss genuine wood trim	2025	Premium Luxury, Sport: O; requires WPC ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.29	confirmed
HSP	Interior trim, Sky Cool Gray/Jet Black with Santorini Blue accents, leather seating surfaces with mini-perforated inserts, Twenty Two high-gloss genuine Carbon Fiber trim, Jet Black accent inserts in seatback	2025	Premium Luxury: not available; Sport: O; requires WPC ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.29	confirmed

Internal / Process

Code	Description	Years	Models/Notes	Confidence
FE9	Emissions, Federal requirements	2025	internal code Premium Luxury, Sport: O ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.11 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
NB8	Emissions override, California	2025	internal code Premium Luxury, Sport: O; lets a dealer in a California-emissions state order Federal emissions; requires FE9 ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.12 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
NB9	Emissions override, state-specific	2025	internal code Premium Luxury, Sport: O; swaps between YF5 and NE1 emissions for registration in the other group of states ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.12 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
NC7	Emissions override, Federal	2025	internal code Premium Luxury, Sport: O; for Federal-emissions states ordering YF5 or NE1; requires YF5 or NE1 ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.12 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
NE1	Emissions, Colorado, Connecticut, Delaware, Maine, Maryland, Massachusetts, Minnesota, Nevada, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Vermont, Virginia and Washington state requirements	2025	internal code Premium Luxury, Sport: O ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.11 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed
YF5	Emissions, California state requirements	2025	internal code Premium Luxury, Sport: O ⛭ GM factory document — 2025 cadillac xt4 fleet order guide, p.11 · 2025 cadillac xt4 fleet order guide rpo codes, p.1	confirmed

Sources

Factory documents (T1)

cadillac/2025-cadillac-xt4-fleet-order-guide.txt — 2025 Cadillac XT4 — GM Fleet Order Guide (Print All) — https://www.gmfleetorderguide.com/brand-list/brand/9d6d9c38-1df2-4510-8942-5ecb819de8df/vehicle/22895/model-home
cadillac/2025-cadillac-xt4-fleet-order-guide-rpo-codes.txt — 2025 Cadillac XT4 — GM Fleet Order Guide, RPO Codes — https://www.gmfleetorderguide.com/brand-list/brand/9d6d9c38-1df2-4510-8942-5ecb819de8df/vehicle/22895/model-home

Other sources

NICB VIN manuals in docs/reference/nicb/ (XT4 tables): nicb2019-gm.txt p.170, nicb2020-gm.txt p.162–163, nicb2021-gm.txt p.168, nicb2022-gm.txt p.159, nicb2023-gm.txt p.153, nicb2024-gm.txt p.160, nicb2025-gm.txt p.150, nicb2026-gm.txt p.147–148 (2026 table shows the Premium Luxury XT4 only in its 2025 column).