Buick Encore GX — VSS-F, imported from Korea (2020–2027)

The Buick Encore GX is the VSS-F-platform crossover that GM Korea builds at Incheon, South Korea, and sends to North America from model year 2020 (Wikipedia). The NICB VIN manuals list it from 2020 as the GX with Preferred, Select and Essence series in front- and all-wheel drive, renamed Sport Touring and Avenir in the 2024 manual, and the 2026 manual shows Preferred, Sport Touring and Avenir. The rows below come from the 2025, 2026 and 2027 GM Fleet Order Guides: a 1.2L Ecotec turbo (LBP, front-wheel drive only) is listed for 2025 and 2026, the 1.3L Ecotec turbo (L3T) for all three years, a CVT with front-wheel drive and a 9 speed automatic with all-wheel drive. The Paint and Interior Trim rows and the trim-group codes come from the guides' Color and Trim pages and page-1 headings. No GM document for 2020 through 2024 is in the archive, so those years have no rows.

Codes

Engines

Code	Description	Years	Models/Notes	Confidence
L3T	Engine, Ecotec 1.3L turbo	2025–2027	2025–2026: Preferred: FWD O, AWD S; Sport Touring, Avenir: S. 2027: Preferred, Sport Touring, Avenir: S; GM estimate 155 hp, 174 lb-ft; the only engine listed for 2027; also named by GM Authority ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.8 · 2026 buick encore gx fleet order guide, p.8 · 2027 buick encore gx fleet order guide, p.8	confirmed
LBP	Engine, Ecotec 1.2L turbo DOHC, direct injection, variable valve timing (VVT), E85 compatible	2025–2026	only in: FWD; Preferred: S; GM-stated 137 hp, 162 lb-ft; not offered for 2027 (GM Authority, 2026-03 and 2026-09 articles) ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.8 · 2026 buick encore gx fleet order guide, p.7	confirmed

Transmissions

Code	Description	Years	Models/Notes	Confidence
M3F	Transmission, 9 speed automatic, 9T4X, Gen 1	2025–2027	only in: AWD; Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.8 · 2026 buick encore gx fleet order guide, p.8 · 2027 buick encore gx fleet order guide, p.8	confirmed
MRG	Transmission, continuously variable (CVT)	2025–2027	only in: FWD; Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.8 · 2026 buick encore gx fleet order guide, p.8 · 2027 buick encore gx fleet order guide, p.8	confirmed

Axles

Code	Description	Years	Models/Notes	Confidence
F48	Drivetrain, all-wheel drive, with Driver Mode Selector	2025–2027	only in: AWD; Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7 · 2026 buick encore gx fleet order guide, p.7 · 2027 buick encore gx fleet order guide, p.7	confirmed
F8J	Axle, 5.45 final drive ratio	2025–2027	only in: FWD; Preferred, Sport Touring, Avenir: S; also named by GM Authority ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7 · 2026 buick encore gx fleet order guide, p.7 · 2027 buick encore gx fleet order guide, p.7	confirmed
FXP	Axle, 3.17 final drive ratio	2025–2027	only in: AWD; Preferred, Sport Touring, Avenir: S; also named by GM Authority ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7 · 2026 buick encore gx fleet order guide, p.7 · 2027 buick encore gx fleet order guide, p.7	confirmed

Packages & Trims

Code	Description	Years	Models/Notes	Confidence
1SB	Equipment group, Preferred	2025–2026	trim group heading of the Preferred columns (FWD and AWD) ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.1 · 2026 buick encore gx fleet order guide, p.1	confirmed
1SD	Equipment group, Sport Touring	2025–2026	trim group heading of the Sport Touring columns (FWD and AWD) ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.1 · 2026 buick encore gx fleet order guide, p.1	confirmed
1SE	Equipment group, Preferred	2027	trim group heading of the Preferred columns (FWD and AWD) ⛭ GM factory document — 2027 buick encore gx fleet order guide, p.1	confirmed
1SF	Equipment group, Sport Touring	2027	trim group heading of the Sport Touring columns (FWD and AWD) ⛭ GM factory document — 2027 buick encore gx fleet order guide, p.1	confirmed
1SG	Equipment group, Avenir	2027	trim group heading of the Avenir columns (FWD and AWD) ⛭ GM factory document — 2027 buick encore gx fleet order guide, p.1	confirmed
1SL	Equipment group, Avenir	2025–2026	trim group heading of the Avenir columns (FWD and AWD) ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.1 · 2026 buick encore gx fleet order guide, p.1	confirmed
CWH	Package, Black Roof	2025–2026	Sport Touring: O; includes black roof rails, black exterior mirror caps and black roof panel ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.12 · 2026 buick encore gx fleet order guide, p.13	confirmed
CWM	Package, Avenir Technology	2025–2027	Avenir: O; includes KSG, DRZ, CWA, UV2, K4C; also named by GM Authority ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.10 · 2026 buick encore gx fleet order guide, p.10 · 2027 buick encore gx fleet order guide, p.10	confirmed
PCZ	LPO, Package, Active Lifestyle	2025–2027	includes SDE, RZW, 5KE, CAV ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.14 · 2026 buick encore gx fleet order guide, p.15 · 2027 buick encore gx fleet order guide, p.14	confirmed
PDA	LPO, Package, Road Trip	2025–2027	includes RIA, VLL ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.11 · 2026 buick encore gx fleet order guide, p.11 · 2027 buick encore gx fleet order guide, p.10	confirmed
PDC	Package, Buick Driver Confidence	2025–2027	Preferred, Sport Touring, Avenir: S; includes UHY, UKJ, UEU, UE4, UHX, TQ5 ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.1 · 2026 buick encore gx fleet order guide, p.1 · 2027 buick encore gx fleet order guide, p.1	confirmed
PDE	LPO, Package, Trailering	2025–2027	includes SDE, RZW, 5KE; also named by GM Authority ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.14 · 2026 buick encore gx fleet order guide, p.15 · 2027 buick encore gx fleet order guide, p.14	confirmed
PDH	LPO, Package, Interior Protection	2025–2027	includes CAV, RIA, SBZ ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.10 · 2026 buick encore gx fleet order guide, p.10 · 2027 buick encore gx fleet order guide, p.10	confirmed
WFP	Package, Studio Series	2026	only in: AWD; Sport Touring: O; includes G42, EKU, CWH, WPM, TB5, WPA, Y55, RIA, SBZ; 2026 only; GM Authority reports the package gone for 2027 ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.13	confirmed
WPA	Package, Advanced Technology	2025–2027	2025–2026: Preferred, Sport Touring: O. 2027: Sport Touring: O; includes KSG, UD7, UV2, K4C; GM Authority reports it unavailable on Preferred for 2027 ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.10 · 2026 buick encore gx fleet order guide, p.10 · 2027 buick encore gx fleet order guide, p.10	confirmed
WPM	Package, Experience Buick	2025–2026	Sport Touring: O; includes C3U, RVB; also named by GM Authority ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.12 · 2026 buick encore gx fleet order guide, p.26	confirmed
Y55	Package, Comfort	2025–2027	Preferred, Sport Touring: O; includes A2X, AL9, KA1, UVD, D7P, DA5; also named by GM Authority ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.10 · 2026 buick encore gx fleet order guide, p.10 · 2027 buick encore gx fleet order guide, p.10	confirmed
Y6L	Package, Avenir Convenience	2025–2027	Avenir: O; includes TC2, UD7, CE1, UQA; also named by GM Authority ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.12 · 2026 buick encore gx fleet order guide, p.13 · 2027 buick encore gx fleet order guide, p.12	confirmed

Equipment

Code	Description	Years	Models/Notes	Confidence
5H1	Key system, 2 keys	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.3 · 2026 buick encore gx fleet order guide, p.3 · 2027 buick encore gx fleet order guide, p.3	confirmed
5KE	LPO, Trailer hitch bezel	2025–2027	⛭ GM factory document — 2025 buick encore gx fleet order guide, p.28 · 2026 buick encore gx fleet order guide, p.31 · 2027 buick encore gx fleet order guide, p.29	confirmed
A2V	Seat adjuster, driver 6-way manual	2025–2027	Preferred, Sport Touring: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.4 · 2026 buick encore gx fleet order guide, p.5 · 2027 buick encore gx fleet order guide, p.5	confirmed
A2X	Seat adjuster, driver 8-way power	2025–2027	Preferred, Sport Touring: O; Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.4 · 2026 buick encore gx fleet order guide, p.5 · 2027 buick encore gx fleet order guide, p.5	confirmed
A45	Memory settings, recalls 2 driver presets for 8-way power driver seat and outside mirrors	2025–2027	Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.3 · 2026 buick encore gx fleet order guide, p.3 · 2027 buick encore gx fleet order guide, p.3	confirmed
A50	Seats, front bucket	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.4 · 2026 buick encore gx fleet order guide, p.4 · 2027 buick encore gx fleet order guide, p.4	confirmed
A64	Seat, rear 40/60 split-bench, folding (60 percent on passenger side)	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.4 · 2026 buick encore gx fleet order guide, p.4 · 2027 buick encore gx fleet order guide, p.4	confirmed
A7E	Seat adjuster, front passenger 4-way manual	2025–2027	Preferred, Sport Touring: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.5 · 2026 buick encore gx fleet order guide, p.5 · 2027 buick encore gx fleet order guide, p.5	confirmed
A7M	Seat adjuster, front passenger 6-way power with 2-way manual recline	2025–2027	Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.5 · 2026 buick encore gx fleet order guide, p.5 · 2027 buick encore gx fleet order guide, p.5	confirmed
AAL	Knee bolster, driver and front passenger	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.3 · 2026 buick encore gx fleet order guide, p.3 · 2027 buick encore gx fleet order guide, p.3	confirmed
AED	Window, power with front passenger Express-Down	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.6 · 2026 buick encore gx fleet order guide, p.6 · 2027 buick encore gx fleet order guide, p.6	confirmed
AEQ	Windows, power, rear with Express-Down	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.6 · 2026 buick encore gx fleet order guide, p.6 · 2027 buick encore gx fleet order guide, p.6	confirmed
AIB	Seat belt, 3-point, front passenger with load limiter and pretensioners, height adjustable	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.4 · 2026 buick encore gx fleet order guide, p.4 · 2027 buick encore gx fleet order guide, p.4	confirmed
AIF	Seat belt, 3-point, driver with load limiter and pretensioners, height adjustable	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.4 · 2026 buick encore gx fleet order guide, p.4 · 2027 buick encore gx fleet order guide, p.4	confirmed
AJC	Headrests, 2-way adjustable, up/down, driver and front passenger	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.2 · 2026 buick encore gx fleet order guide, p.2 · 2027 buick encore gx fleet order guide, p.2	confirmed
AK9	Seat belts, 3-point, rear, all seating positions with pretensioners	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.4 · 2026 buick encore gx fleet order guide, p.4 · 2027 buick encore gx fleet order guide, p.4	confirmed
AKK	Glass, acoustic, laminated windshield	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.5 · 2026 buick encore gx fleet order guide, p.5 · 2027 buick encore gx fleet order guide, p.6	confirmed
AKO	Glass, deep-tinted	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.5 · 2026 buick encore gx fleet order guide, p.5 · 2027 buick encore gx fleet order guide, p.6	confirmed
AKX	Windshield, solar absorbing	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7 · 2026 buick encore gx fleet order guide, p.7 · 2027 buick encore gx fleet order guide, p.7	confirmed
AL0	Airbag, passenger sensing system, front passenger/child presence detector sensor indicator for inflatable restraint	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.1 · 2026 buick encore gx fleet order guide, p.1 · 2027 buick encore gx fleet order guide, p.1	confirmed
AL9	Seat adjuster, 2-way power driver lumbar control	2025–2027	Preferred, Sport Touring: O; Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.5 · 2026 buick encore gx fleet order guide, p.5 · 2027 buick encore gx fleet order guide, p.5	confirmed
AP9	Cargo net, rear	2025	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.10	confirmed
ASV	Sensor, cabin humidity	2025–2027	Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.5 · 2026 buick encore gx fleet order guide, p.5 · 2027 buick encore gx fleet order guide, p.5	confirmed
AT9	Seat adjuster, front passenger 2-way power lumbar	2025–2027	Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.5 · 2026 buick encore gx fleet order guide, p.5 · 2027 buick encore gx fleet order guide, p.5	confirmed
ATH	Keyless Open	2025–2027	Preferred, Sport Touring, Avenir: S; includes extended range remote keyless entry ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.3 · 2026 buick encore gx fleet order guide, p.3 · 2027 buick encore gx fleet order guide, p.3	confirmed
AXG	Window, power with driver Express-Up/Down	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.6 · 2026 buick encore gx fleet order guide, p.6 · 2027 buick encore gx fleet order guide, p.6	confirmed
AYF	Airbags, frontal and knee for driver and front passenger, seat-mounted side-impact and head-curtain for front and rear seating positions	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.1 · 2026 buick encore gx fleet order guide, p.1 · 2027 buick encore gx fleet order guide, p.1	confirmed
B32	Floor mats, color-keyed and carpeted front	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.2 · 2026 buick encore gx fleet order guide, p.2 · 2027 buick encore gx fleet order guide, p.2	confirmed
B33	Floor mats, color-keyed and carpeted rear	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.2 · 2026 buick encore gx fleet order guide, p.2 · 2027 buick encore gx fleet order guide, p.2	confirmed
B41	Cargo mat, load floor	2025–2027	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.10 · 2026 buick encore gx fleet order guide, p.10 · 2027 buick encore gx fleet order guide, p.10	confirmed
B52	Moldings, rocker, gloss Black	2025–2027	Sport Touring: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7 · 2026 buick encore gx fleet order guide, p.7 · 2027 buick encore gx fleet order guide, p.7	confirmed
B70	Door sill plate cover, front	2025–2027	Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.2 · 2026 buick encore gx fleet order guide, p.2 · 2027 buick encore gx fleet order guide, p.2	confirmed
B7S	Cargo security cover, rear, stowable under rear cargo load floor	2025–2027	Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.2 · 2026 buick encore gx fleet order guide, p.2 · 2027 buick encore gx fleet order guide, p.2	confirmed
B86	Moldings, body-color bodyside	2025–2027	Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7 · 2026 buick encore gx fleet order guide, p.7 · 2027 buick encore gx fleet order guide, p.7	confirmed
B87	Moldings, Black bodyside	2025–2027	Sport Touring: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.6 · 2026 buick encore gx fleet order guide, p.6 · 2027 buick encore gx fleet order guide, p.7	confirmed
BTM	Keyless start, push button	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.3 · 2026 buick encore gx fleet order guide, p.3 · 2027 buick encore gx fleet order guide, p.3	confirmed
BTT	Remote panic alarm	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.4 · 2026 buick encore gx fleet order guide, p.4 · 2027 buick encore gx fleet order guide, p.4	confirmed
BTV	Remote vehicle starter system	2025–2027	Preferred, Sport Touring, Avenir: S; includes remote keyless entry ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.4 · 2026 buick encore gx fleet order guide, p.4 · 2027 buick encore gx fleet order guide, p.4	confirmed
BXQ	Door pillar trim, blackout	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.5 · 2026 buick encore gx fleet order guide, p.5 · 2027 buick encore gx fleet order guide, p.5	confirmed
C25	Wiper, rear intermittent	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7 · 2026 buick encore gx fleet order guide, p.7 · 2027 buick encore gx fleet order guide, p.7	confirmed
C32	Auxiliary heater, electric, heating/defroster	2025–2027	2025–2026: Preferred: FWD O, AWD S; Sport Touring, Avenir: S. 2027: Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.3 · 2026 buick encore gx fleet order guide, p.2 · 2027 buick encore gx fleet order guide, p.2	confirmed
C35	HVAC duct, rear, underneath front seat	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.3 · 2026 buick encore gx fleet order guide, p.3 · 2027 buick encore gx fleet order guide, p.2	confirmed
C3U	Moonroof, power, panoramic, tilt-sliding	2025–2027	Sport Touring, Avenir: O; also named by GM Authority ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.12 · 2026 buick encore gx fleet order guide, p.12 · 2027 buick encore gx fleet order guide, p.12	confirmed
C4R	GVWR, 4211 lbs. (1910 kg)	2025–2026	only in: FWD; Preferred: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.8 · 2026 buick encore gx fleet order guide, p.8	confirmed
C4U	GVWR, 4233 lbs. (1920 kg)	2025–2027	only in: FWD; 2025–2026: Preferred: O; Sport Touring, Avenir: S. 2027: Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.8 · 2026 buick encore gx fleet order guide, p.8 · 2027 buick encore gx fleet order guide, p.8	confirmed
C67	Air conditioning, single-zone electronic	2025–2027	Preferred, Sport Touring: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.1 · 2026 buick encore gx fleet order guide, p.1 · 2027 buick encore gx fleet order guide, p.1	confirmed
C6N	GVWR, 4409 lbs. (2000 kg)	2025–2027	only in: AWD; Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.8 · 2026 buick encore gx fleet order guide, p.8 · 2027 buick encore gx fleet order guide, p.8	confirmed
C75	Lighting, interior, overhead courtesy dual reading lamp	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.3 · 2026 buick encore gx fleet order guide, p.3 · 2027 buick encore gx fleet order guide, p.3	confirmed
C8T	Tail lamps, LED, clear lens	2025–2027	Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7 · 2026 buick encore gx fleet order guide, p.7 · 2027 buick encore gx fleet order guide, p.7	confirmed
CAV	LPO, Cargo liner	2025–2027	⛭ GM factory document — 2025 buick encore gx fleet order guide, p.11 · 2026 buick encore gx fleet order guide, p.11 · 2027 buick encore gx fleet order guide, p.10	confirmed
CE1	Wipers, front intermittent, Rainsense	2025–2027	Avenir: O ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.25 · 2026 buick encore gx fleet order guide, p.28 · 2027 buick encore gx fleet order guide, p.26	confirmed
CJ2	Air conditioning, dual-zone automatic climate control with individual climate settings for driver and right-front passenger	2025–2027	Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.1 · 2026 buick encore gx fleet order guide, p.1 · 2027 buick encore gx fleet order guide, p.1	confirmed
CWA	Rear Camera Mirror Washer	2025–2027	Avenir: O ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.24 · 2026 buick encore gx fleet order guide, p.27 · 2027 buick encore gx fleet order guide, p.25	confirmed
D06	Console, floor, with armrest	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.2 · 2026 buick encore gx fleet order guide, p.2 · 2027 buick encore gx fleet order guide, p.2	confirmed
D31	Mirror, inside rearview manual day/night with tilt	2025–2027	Preferred, Sport Touring: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.3 · 2026 buick encore gx fleet order guide, p.3 · 2027 buick encore gx fleet order guide, p.3	confirmed
D7A	Door handles, body-color with chrome strips	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.5 · 2026 buick encore gx fleet order guide, p.5 · 2027 buick encore gx fleet order guide, p.5	confirmed
D7P	Seatback, front passenger flat-folding	2025–2027	Preferred, Sport Touring: O; Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.5 · 2026 buick encore gx fleet order guide, p.5 · 2027 buick encore gx fleet order guide, p.5	confirmed
DA5	Armrest, rear center	2025–2027	Preferred, Sport Touring: O; Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.1 · 2026 buick encore gx fleet order guide, p.1 · 2027 buick encore gx fleet order guide, p.1	confirmed
DD8	Mirror, inside rearview auto-dimming	2025–2027	Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.3 · 2026 buick encore gx fleet order guide, p.3 · 2027 buick encore gx fleet order guide, p.3	confirmed
DG6	Mirrors, outside heated power-adjustable, body-color, manual-folding	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.6 · 2026 buick encore gx fleet order guide, p.6 · 2027 buick encore gx fleet order guide, p.7	confirmed
DMS	Visors, driver and front passenger, illuminated vanity mirrors, covered, sliding	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.6 · 2026 buick encore gx fleet order guide, p.6 · 2027 buick encore gx fleet order guide, p.6	confirmed
DRZ	Rear Camera Mirror	2025–2027	Avenir: O ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.19 · 2026 buick encore gx fleet order guide, p.20 · 2027 buick encore gx fleet order guide, p.19	confirmed
E22	Assist handles, rear outboard	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.1 · 2026 buick encore gx fleet order guide, p.1 · 2027 buick encore gx fleet order guide, p.1	confirmed
E27	Assist handle, front passenger	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.1 · 2026 buick encore gx fleet order guide, p.1 · 2027 buick encore gx fleet order guide, p.1	confirmed
E90	Map pocket, driver seatback	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.3 · 2026 buick encore gx fleet order guide, p.3 · 2027 buick encore gx fleet order guide, p.3	confirmed
E91	Map pocket, front passenger seatback	2025–2027	Preferred, Sport Touring: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.3 · 2026 buick encore gx fleet order guide, p.3 · 2027 buick encore gx fleet order guide, p.3	confirmed
ECK	Driver shift control	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7 · 2026 buick encore gx fleet order guide, p.7 · 2027 buick encore gx fleet order guide, p.8	confirmed
ENL	Engine control, stop/start system disable switch, non-latching	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.8 · 2026 buick encore gx fleet order guide, p.8 · 2027 buick encore gx fleet order guide, p.8	confirmed
FE2	Suspension, Ride and Handling	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.8 · 2026 buick encore gx fleet order guide, p.8 · 2027 buick encore gx fleet order guide, p.8	confirmed
FHA	Fuel system, electronic, returnless	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.8 · 2026 buick encore gx fleet order guide, p.8 · 2027 buick encore gx fleet order guide, p.8	confirmed
FHS	E85 FlexFuel capable (unleaded or up to 85% ethanol)	2025–2027	only in: FWD; Preferred: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.8 · 2026 buick encore gx fleet order guide, p.8 · 2027 buick encore gx fleet order guide, p.8	confirmed
IVA	Audio system, 11 inch diagonal HD color touchscreen, AM/FM stereo	2025–2027	Preferred, Sport Touring, Avenir: S; wireless Apple CarPlay and Android Auto capable, Bluetooth audio streaming for 2 active devices ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.1 · 2026 buick encore gx fleet order guide, p.1 · 2027 buick encore gx fleet order guide, p.1	confirmed
J71	Brake, electronic parking	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7 · 2026 buick encore gx fleet order guide, p.7 · 2027 buick encore gx fleet order guide, p.7	confirmed
JBP	Brake lining wear indicator	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7 · 2026 buick encore gx fleet order guide, p.7 · 2027 buick encore gx fleet order guide, p.7	confirmed
JE0	Brakes, front and rear, electric	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7 · 2026 buick encore gx fleet order guide, p.7 · 2027 buick encore gx fleet order guide, p.7	confirmed
JL9	Brakes, 4-wheel antilock, 4-wheel disc	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7 · 2026 buick encore gx fleet order guide, p.7 · 2027 buick encore gx fleet order guide, p.7	confirmed
K05	Engine block heater	2025–2027	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.14 · 2026 buick encore gx fleet order guide, p.14 · 2027 buick encore gx fleet order guide, p.14	confirmed
K12	Air filter, pollutant	2025–2027	Preferred, Sport Touring: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.1 · 2026 buick encore gx fleet order guide, p.1 · 2027 buick encore gx fleet order guide, p.1	confirmed
K1O	Engine air filtration monitor	2025–2027	Preferred, Sport Touring, Avenir: S; letter O in the code as GM prints it; GM prints no zero form ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.8 · 2026 buick encore gx fleet order guide, p.8 · 2027 buick encore gx fleet order guide, p.8	confirmed
K34	Cruise control, electronic with set and resume speed	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.2 · 2026 buick encore gx fleet order guide, p.2 · 2027 buick encore gx fleet order guide, p.2	confirmed
K4C	Wireless Charging	2025–2027	2025–2026: Preferred, Sport Touring, Avenir: O. 2027: Sport Touring, Avenir: O ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.22 · 2026 buick encore gx fleet order guide, p.25 · 2027 buick encore gx fleet order guide, p.23	confirmed
K6J	Air filter, pollutant and fine dust	2025–2027	Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.1 · 2026 buick encore gx fleet order guide, p.1 · 2027 buick encore gx fleet order guide, p.1	confirmed
KA1	Seats, heated driver and front passenger	2025–2027	Preferred, Sport Touring: O; Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.5 · 2026 buick encore gx fleet order guide, p.5 · 2027 buick encore gx fleet order guide, p.5	confirmed
KI6	Power outlet, 120-volt, rear of center console	2025–2027	Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.4 · 2026 buick encore gx fleet order guide, p.4 · 2027 buick encore gx fleet order guide, p.4	confirmed
KL9	Engine control, stop/start system	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.8 · 2026 buick encore gx fleet order guide, p.8 · 2027 buick encore gx fleet order guide, p.8	confirmed
KNV	Shift knob, satin silver and chrome	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.5 · 2026 buick encore gx fleet order guide, p.5 · 2027 buick encore gx fleet order guide, p.5	confirmed
KQX	Capless fuel fill	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.5 · 2026 buick encore gx fleet order guide, p.5 · 2027 buick encore gx fleet order guide, p.5	confirmed
KSG	Adaptive Cruise Control	2025–2027	2025–2026: Preferred, Sport Touring, Avenir: O. 2027: Sport Touring, Avenir: O ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.17 · 2026 buick encore gx fleet order guide, p.18 · 2027 buick encore gx fleet order guide, p.17	confirmed
KTI	Tire inflator kit	2026–2027	Preferred, Sport Touring, Avenir: S; standard from 2026 in place of the spare tire (GM Authority, 2025-03) ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.7 · 2027 buick encore gx fleet order guide, p.7	confirmed
MDT	Moldings, upper side window, chrome roofline and gloss Black beltline	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.6 · 2026 buick encore gx fleet order guide, p.6 · 2027 buick encore gx fleet order guide, p.7	confirmed
N37	Steering column, tilt and telescopic, adjustable	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.5 · 2026 buick encore gx fleet order guide, p.5 · 2027 buick encore gx fleet order guide, p.5	confirmed
N5F	Steering wheel, wrapped	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.5 · 2026 buick encore gx fleet order guide, p.5 · 2027 buick encore gx fleet order guide, p.5	confirmed
NCH	Door locks, rear child security	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.2 · 2026 buick encore gx fleet order guide, p.2 · 2027 buick encore gx fleet order guide, p.2	confirmed
NJ1	Steering, power, variable effort, electric	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.8 · 2026 buick encore gx fleet order guide, p.8 · 2027 buick encore gx fleet order guide, p.8	confirmed
NKC	Noise control system, active noise cancellation	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.3 · 2026 buick encore gx fleet order guide, p.3 · 2027 buick encore gx fleet order guide, p.3	confirmed
P0H	OnStar Connect Plus, 12 months	2026–2027	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.39 · 2027 buick encore gx fleet order guide, p.37	confirmed
P0I	OnStar Connect Plus, 24 months	2026–2027	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.40 · 2027 buick encore gx fleet order guide, p.38	confirmed
P0J	OnStar Protect, 24 months	2025–2027	Preferred, Sport Touring, Avenir: O; the 2025 guide names the plan OnStar Security ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.31 · 2026 buick encore gx fleet order guide, p.33 · 2027 buick encore gx fleet order guide, p.31	confirmed
P0K	OnStar Protect, 36 months	2025–2027	Preferred, Sport Touring, Avenir: O; the 2025 guide names the plan OnStar Security ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.32 · 2026 buick encore gx fleet order guide, p.33 · 2027 buick encore gx fleet order guide, p.31	confirmed
P0L	OnStar Protect, 48 months	2025–2027	Preferred, Sport Touring, Avenir: O; the 2025 guide names the plan OnStar Security ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.33 · 2026 buick encore gx fleet order guide, p.34 · 2027 buick encore gx fleet order guide, p.32	confirmed
P0Q	OnStar Protect, 60 months	2025–2027	Preferred, Sport Touring, Avenir: O; the 2025 guide names the plan OnStar Security ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.34 · 2026 buick encore gx fleet order guide, p.34 · 2027 buick encore gx fleet order guide, p.32	confirmed
P0U	OnStar Protect, 12 months	2025–2027	Preferred, Sport Touring, Avenir: O; the 2025 guide names the plan OnStar Security ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.30 · 2026 buick encore gx fleet order guide, p.33 · 2027 buick encore gx fleet order guide, p.31	confirmed
P0V	OnStar Telematics, 12 months	2025–2027	Preferred, Sport Touring, Avenir: O; the 2025 guide names the plan OnStar Insights ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.34 · 2026 buick encore gx fleet order guide, p.37 · 2027 buick encore gx fleet order guide, p.35	confirmed
P0W	OnStar Telematics, 24 months	2025–2027	Preferred, Sport Touring, Avenir: O; the 2025 guide names the plan OnStar Insights ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.35 · 2026 buick encore gx fleet order guide, p.37 · 2027 buick encore gx fleet order guide, p.35	confirmed
P0X	OnStar Telematics, 36 months	2025–2027	Preferred, Sport Touring, Avenir: O; the 2025 guide names the plan OnStar Insights ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.35 · 2026 buick encore gx fleet order guide, p.38 · 2027 buick encore gx fleet order guide, p.36	confirmed
P0Y	OnStar Telematics, 48 months	2025–2027	Preferred, Sport Touring, Avenir: O; the 2025 guide names the plan OnStar Insights ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.36 · 2026 buick encore gx fleet order guide, p.38 · 2027 buick encore gx fleet order guide, p.36	confirmed
P0Z	OnStar Telematics, 60 months	2025–2027	Preferred, Sport Touring, Avenir: O; the 2025 guide names the plan OnStar Insights ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.36 · 2026 buick encore gx fleet order guide, p.39 · 2027 buick encore gx fleet order guide, p.37	confirmed
P1N	API Pro, 12 months	2026–2027	Preferred, Sport Touring, Avenir: O; includes DTC ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.47 · 2027 buick encore gx fleet order guide, p.45	confirmed
P1O	API Pro, 24 months	2026–2027	Preferred, Sport Touring, Avenir: O; includes DTC ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.48 · 2027 buick encore gx fleet order guide, p.46	confirmed
P1P	API Pro, 36 months	2026–2027	Preferred, Sport Touring, Avenir: O; includes DTC ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.49 · 2027 buick encore gx fleet order guide, p.47	confirmed
P1Q	API Elite, 6 months	2026–2027	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.49 · 2027 buick encore gx fleet order guide, p.47	confirmed
P1R	API Starter, 6 months	2026–2027	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.44 · 2027 buick encore gx fleet order guide, p.42	confirmed
P1S	API Starter, 12 months	2026–2027	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.45 · 2027 buick encore gx fleet order guide, p.43	confirmed
P1T	API Starter, 24 months	2026–2027	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.45 · 2027 buick encore gx fleet order guide, p.43	confirmed
P1U	API Starter, 36 months	2026–2027	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.46 · 2027 buick encore gx fleet order guide, p.44	confirmed
PPW	Wireless Apple CarPlay/Wireless Android Auto	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.6 · 2026 buick encore gx fleet order guide, p.6 · 2027 buick encore gx fleet order guide, p.6	confirmed
PQG	OnStar Connect Plus, 36 months	2026–2027	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.40 · 2027 buick encore gx fleet order guide, p.38	confirmed
PQH	OnStar Connect Plus, 48 months	2026–2027	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.41 · 2027 buick encore gx fleet order guide, p.39	confirmed
PQI	OnStar Connect Plus, 60 months	2026–2027	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.41 · 2027 buick encore gx fleet order guide, p.39	confirmed
PQL	OnStar Video Telematics with hardware, 12 months	2026–2027	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.42 · 2027 buick encore gx fleet order guide, p.40	confirmed
PQM	OnStar Video Telematics with hardware, 24 months	2026–2027	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.42 · 2027 buick encore gx fleet order guide, p.40	confirmed
PQP	OnStar Video Telematics with hardware, 36 months	2026–2027	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.43 · 2027 buick encore gx fleet order guide, p.41	confirmed
PQQ	OnStar Video Telematics with hardware, 48 months	2026–2027	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.43 · 2027 buick encore gx fleet order guide, p.41	confirmed
PQT	OnStar Video Telematics with hardware, 60 months	2026–2027	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.44 · 2027 buick encore gx fleet order guide, p.42	confirmed
PR6	SiriusXM, additional 9 months of the SXM Platinum Plan	2025	Preferred, Sport Touring, Avenir: O; 2025 reading; 2026–2027 give this code a different meaning (next row) ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.39	confirmed
PR6	API Elite, 24 months	2026–2027	Preferred, Sport Touring, Avenir: O; the 2025 guide gives this code a different meaning (SiriusXM, previous row) ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.50 · 2027 buick encore gx fleet order guide, p.48	confirmed
PR7	SiriusXM, additional 21 months of the SXM Platinum Plan	2025	Preferred, Sport Touring, Avenir: O; 2025 only ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.39	confirmed
PR8	SiriusXM, additional 33 months of the SXM Platinum Plan	2025	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.39	confirmed
PRB	OnStar One, 3 years	2026–2027	Preferred, Sport Touring: O ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.12 · 2027 buick encore gx fleet order guide, p.12	confirmed
PRE	API Elite, 12 months	2026–2027	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.50 · 2027 buick encore gx fleet order guide, p.48	confirmed
Q8E	Mechanical jack with tools	2025–2027	2025: Preferred, Sport Touring, Avenir: S. 2026–2027: Preferred, Sport Touring, Avenir: O; also named by GM Authority ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.3 · 2026 buick encore gx fleet order guide, p.20 · 2027 buick encore gx fleet order guide, p.19	confirmed
QAI	Tires, 225/55R18 all-season, blackwall	2025–2027	Preferred, Sport Touring: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7 · 2026 buick encore gx fleet order guide, p.7 · 2027 buick encore gx fleet order guide, p.7	confirmed
R6P	SiriusXM, 3 years	2025–2027	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.10 · 2026 buick encore gx fleet order guide, p.10 · 2027 buick encore gx fleet order guide, p.10	confirmed
R7Z	API Pro, 6 months	2026–2027	Preferred, Sport Touring, Avenir: O; includes DTC ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.46 · 2027 buick encore gx fleet order guide, p.44	confirmed
R8G	OnStar One Fleet, 12 months	2025–2027	Preferred, Sport Touring, Avenir: O; the 2025 guide names the plan OnStar One Business Plus ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.37 · 2026 buick encore gx fleet order guide, p.34 · 2027 buick encore gx fleet order guide, p.32	confirmed
R8P	OnStar One Fleet, 36 months	2025–2027	Preferred, Sport Touring, Avenir: O; the 2025 guide names the plan OnStar One Business Plus ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.38 · 2026 buick encore gx fleet order guide, p.35 · 2027 buick encore gx fleet order guide, p.33	confirmed
R8W	OnStar One Fleet, 60 months	2025–2027	Preferred, Sport Touring, Avenir: O; the 2025 guide names the plan OnStar One Business Plus ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.39 · 2026 buick encore gx fleet order guide, p.36 · 2027 buick encore gx fleet order guide, p.34	confirmed
R8Z	OnStar One Fleet, 48 months	2025–2027	Preferred, Sport Touring, Avenir: O; the 2025 guide names the plan OnStar One Business Plus ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.38 · 2026 buick encore gx fleet order guide, p.36 · 2027 buick encore gx fleet order guide, p.34	confirmed
R9L	OnStar Basics, removal (OnStar Fleet Basics for fleet)	2025–2027	Preferred, Sport Touring, Avenir: O; the 2025 guide words it "Deleted OnStar Basics"; the code has a second meaning in 2026–2027 (next row) ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.20 · 2026 buick encore gx fleet order guide, p.22 · 2027 buick encore gx fleet order guide, p.20	confirmed
R9L	OnStar One, 3 years, removal (also the 3 years of OnStar One with Super Cruise upgrade, suitably equipped vehicles)	2026–2027	Avenir: O; another meaning of this code in 2026–2027 (previous row) ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.12 · 2027 buick encore gx fleet order guide, p.12	confirmed
R9M	OnStar One, 3 years	2026–2027	Avenir: S ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.4 · 2027 buick encore gx fleet order guide, p.4	confirmed
R9V	Mobile Service Plus, 3 years	2025–2027	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.12 · 2026 buick encore gx fleet order guide, p.12 · 2027 buick encore gx fleet order guide, p.11	confirmed
R9W	Mobile Service Plus, deleted	2025–2027	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.12 · 2026 buick encore gx fleet order guide, p.12 · 2027 buick encore gx fleet order guide, p.12	confirmed
R9Y	Mobile Service Plus, 1 year	2026–2027	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.12 · 2027 buick encore gx fleet order guide, p.11	confirmed
RDI	LPO, Keyless Entry Keypad	2025–2027	⛭ GM factory document — 2025 buick encore gx fleet order guide, p.12 · 2026 buick encore gx fleet order guide, p.13 · 2027 buick encore gx fleet order guide, p.12	confirmed
REQ	Wheels, 18 inch (45.7 cm) Gloss Black aluminum	2025–2027	Sport Touring: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7 · 2026 buick encore gx fleet order guide, p.7 · 2027 buick encore gx fleet order guide, p.7	confirmed
RFH	OnStar One Fleet, 24 months	2025–2027	Preferred, Sport Touring, Avenir: O; the 2025 guide names the plan OnStar One Business Plus ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.37 · 2026 buick encore gx fleet order guide, p.35 · 2027 buick encore gx fleet order guide, p.33	confirmed
RFS	API Elite, 36 months	2026–2027	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.51 · 2027 buick encore gx fleet order guide, p.49	confirmed
RH3	Tires, 245/45R19 all-season, blackwall	2025–2027	Sport Touring: O; Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7 · 2026 buick encore gx fleet order guide, p.7 · 2027 buick encore gx fleet order guide, p.7	confirmed
RIA	LPO, All-weather floor liners	2025–2027	⛭ GM factory document — 2025 buick encore gx fleet order guide, p.11 · 2026 buick encore gx fleet order guide, p.11 · 2027 buick encore gx fleet order guide, p.11	confirmed
RSR	Rear Seat Reminder	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.4 · 2026 buick encore gx fleet order guide, p.4 · 2027 buick encore gx fleet order guide, p.4	confirmed
RSZ	Wheels, 18 inch (45.7 cm) Bright Silver painted aluminum	2025–2027	Preferred: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7 · 2026 buick encore gx fleet order guide, p.7 · 2027 buick encore gx fleet order guide, p.7	confirmed
RT8	Wheels, 19 inch (48.3 cm) Avenir Premium Pearl Nickel aluminum	2025–2027	Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7 · 2026 buick encore gx fleet order guide, p.7 · 2027 buick encore gx fleet order guide, p.7	confirmed
RVB	Wheels, 19 inch (48.3 cm) Gloss Black aluminum	2025–2027	Sport Touring: O; also named by GM Authority ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.25 · 2026 buick encore gx fleet order guide, p.13 · 2027 buick encore gx fleet order guide, p.13	confirmed
RWU	LPO, Cargo area organizer, collapsible	2025	⛭ GM factory document — 2025 buick encore gx fleet order guide, p.11	confirmed
RYT	LPO, First aid kit	2025	⛭ GM factory document — 2025 buick encore gx fleet order guide, p.11	confirmed
RZW	LPO, Trailering harness	2025–2027	⛭ GM factory document — 2025 buick encore gx fleet order guide, p.28 · 2026 buick encore gx fleet order guide, p.31 · 2027 buick encore gx fleet order guide, p.29	confirmed
S08	LPO, Highway Safety Kit	2025	⛭ GM factory document — 2025 buick encore gx fleet order guide, p.11	confirmed
S47	LPO, Lug nuts, bright chrome	2025	⛭ GM factory document — 2025 buick encore gx fleet order guide, p.12	confirmed
SBZ	LPO, Sport pedal kit	2025–2027	⛭ GM factory document — 2025 buick encore gx fleet order guide, p.11 · 2026 buick encore gx fleet order guide, p.11 · 2027 buick encore gx fleet order guide, p.11	confirmed
SDE	LPO, Trailer hitch	2025–2027	⛭ GM factory document — 2025 buick encore gx fleet order guide, p.28 · 2026 buick encore gx fleet order guide, p.31 · 2027 buick encore gx fleet order guide, p.29	confirmed
SFE	LPO, Wheel locks	2025–2027	includes 4 locks and 1 key ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.13 · 2026 buick encore gx fleet order guide, p.13 · 2027 buick encore gx fleet order guide, p.13	confirmed
SJQ	Wheel, spare, 16 inch (40.6 cm) steel	2025	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7	confirmed
T4L	Headlamps, LED	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.6 · 2026 buick encore gx fleet order guide, p.6 · 2027 buick encore gx fleet order guide, p.6	confirmed
T7E	Daytime Running Lamps, Signature LED	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.5 · 2026 buick encore gx fleet order guide, p.5 · 2027 buick encore gx fleet order guide, p.5	confirmed
T7Z	Buckle to Drive, programmable	2025–2027	Preferred, Sport Touring, Avenir: S; prevents shifting out of Park until the driver belt is fastened ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.2 · 2026 buick encore gx fleet order guide, p.2 · 2027 buick encore gx fleet order guide, p.2	confirmed
T83	Headlamp control, automatic on and off	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.6 · 2026 buick encore gx fleet order guide, p.6 · 2027 buick encore gx fleet order guide, p.6	confirmed
TB4	Liftgate, manual	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.6 · 2026 buick encore gx fleet order guide, p.6 · 2027 buick encore gx fleet order guide, p.6	confirmed
TB5	Liftgate, power	2025–2027	Preferred, Sport Touring: O; 2027: requires the Y55 Comfort Package; also named by GM Authority ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.12 · 2026 buick encore gx fleet order guide, p.13 · 2027 buick encore gx fleet order guide, p.12	confirmed
TC2	Liftgate, power, hands free	2025–2027	Avenir: O ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.24 · 2026 buick encore gx fleet order guide, p.27 · 2027 buick encore gx fleet order guide, p.24	confirmed
TDM	Teen Driver	2025–2027	Preferred, Sport Touring, Avenir: S; configurable settings tied to a key fob, with an in-vehicle report card ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.6 · 2026 buick encore gx fleet order guide, p.6 · 2027 buick encore gx fleet order guide, p.6	confirmed
TLD	Grille, Sport Touring, high gloss Black	2025–2027	Sport Touring: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.6 · 2026 buick encore gx fleet order guide, p.6 · 2027 buick encore gx fleet order guide, p.6	confirmed
TQ5	IntelliBeam, auto high beam	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.6 · 2026 buick encore gx fleet order guide, p.6 · 2027 buick encore gx fleet order guide, p.6	confirmed
TS6	Lamp, LED center high-mounted stop/brake lamp	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.6 · 2026 buick encore gx fleet order guide, p.6 · 2027 buick encore gx fleet order guide, p.6	confirmed
TSA	Grille, Avenir, Black Ice	2025–2027	Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.6 · 2026 buick encore gx fleet order guide, p.6 · 2027 buick encore gx fleet order guide, p.6	confirmed
TUU	Lighting, interior, roof, rear courtesy	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.3 · 2026 buick encore gx fleet order guide, p.3 · 2027 buick encore gx fleet order guide, p.3	confirmed
TVM	Tail lamps, halogen	2025–2027	Preferred: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7 · 2026 buick encore gx fleet order guide, p.7 · 2027 buick encore gx fleet order guide, p.7	confirmed
U05	Horn, dual note tone	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.3 · 2026 buick encore gx fleet order guide, p.3 · 2027 buick encore gx fleet order guide, p.3	confirmed
U25	Lighting, rear cargo compartment lamp	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.3 · 2026 buick encore gx fleet order guide, p.3 · 2027 buick encore gx fleet order guide, p.3	confirmed
U2K	SiriusXM trial subscription	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.2 · 2026 buick encore gx fleet order guide, p.2 · 2027 buick encore gx fleet order guide, p.2	confirmed
U80	Compass display	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.2 · 2026 buick encore gx fleet order guide, p.2 · 2027 buick encore gx fleet order guide, p.2	confirmed
U91	Antenna, roof-mounted	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.5 · 2026 buick encore gx fleet order guide, p.5 · 2027 buick encore gx fleet order guide, p.5	confirmed
UBJ	USB ports, 2 (1 USB Type-A, 1 USB Type-C), front of center console	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.2 · 2026 buick encore gx fleet order guide, p.2 · 2027 buick encore gx fleet order guide, p.2	confirmed
UC3	Steering wheel controls, audio, cruise control, Driver Information Center, Forward Collision Alert gap adjust, phone interface	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.5 · 2026 buick encore gx fleet order guide, p.5 · 2027 buick encore gx fleet order guide, p.5	confirmed
UD7	Rear Park Assist	2025–2027	2025–2026: Preferred, Sport Touring, Avenir: O. 2027: Sport Touring, Avenir: O ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.21 · 2026 buick encore gx fleet order guide, p.23 · 2027 buick encore gx fleet order guide, p.21	confirmed
UE1	OnStar services capable	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.3 · 2026 buick encore gx fleet order guide, p.3 · 2027 buick encore gx fleet order guide, p.3	confirmed
UE4	Following Distance Indicator	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.2 · 2026 buick encore gx fleet order guide, p.2 · 2027 buick encore gx fleet order guide, p.2	confirmed
UEU	Forward Collision Alert	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.2 · 2026 buick encore gx fleet order guide, p.2 · 2027 buick encore gx fleet order guide, p.2	confirmed
UFG	Rear Cross Traffic Alert	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.4 · 2026 buick encore gx fleet order guide, p.4 · 2027 buick encore gx fleet order guide, p.4	confirmed
UG1	Universal Home Remote	2025–2027	Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.6 · 2026 buick encore gx fleet order guide, p.6 · 2027 buick encore gx fleet order guide, p.6	confirmed
UGE	Tail lamps, LED	2025–2027	Sport Touring: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7 · 2026 buick encore gx fleet order guide, p.7 · 2027 buick encore gx fleet order guide, p.7	confirmed
UHX	Lane Keep Assist with Lane Departure Warning	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.3 · 2026 buick encore gx fleet order guide, p.3 · 2027 buick encore gx fleet order guide, p.3	confirmed
UHY	Automatic Emergency Braking	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7 · 2026 buick encore gx fleet order guide, p.7 · 2027 buick encore gx fleet order guide, p.7	confirmed
UJM	Tire Pressure Monitoring System, manual learn	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.6 · 2026 buick encore gx fleet order guide, p.6 · 2027 buick encore gx fleet order guide, p.6	confirmed
UK4	Tire Pressure Display, by tire	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.6 · 2026 buick encore gx fleet order guide, p.6 · 2027 buick encore gx fleet order guide, p.6	confirmed
UKC	Lane Change Alert with Side Blind Zone Alert	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.3 · 2026 buick encore gx fleet order guide, p.3 · 2027 buick encore gx fleet order guide, p.3	confirmed
UKE	Display, ECO drive assistance	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.2 · 2026 buick encore gx fleet order guide, p.2 · 2027 buick encore gx fleet order guide, p.2	confirmed
UKJ	Front Pedestrian Braking	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7 · 2026 buick encore gx fleet order guide, p.7 · 2027 buick encore gx fleet order guide, p.8	confirmed
UMN	Speedometer, miles/kilometers, miles odometer	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.5 · 2026 buick encore gx fleet order guide, p.5 · 2027 buick encore gx fleet order guide, p.5	confirmed
UQ3	Audio system feature, 6-speaker system, enhanced performance	2025–2027	only in: FWD; Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.1 · 2026 buick encore gx fleet order guide, p.1 · 2027 buick encore gx fleet order guide, p.1	confirmed
UQA	Audio system feature, Bose premium 7-speaker system, with amplifier	2025–2027	2025–2026: Sport Touring, Avenir: O. 2027: Avenir: O ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.10 · 2026 buick encore gx fleet order guide, p.10 · 2027 buick encore gx fleet order guide, p.16	confirmed
UQG	Audio system feature, 7-speaker system, enhanced performance, with amplifier	2025–2027	only in: AWD; Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.1 · 2026 buick encore gx fleet order guide, p.1 · 2027 buick encore gx fleet order guide, p.1	confirmed
UQL	LATCH system (Lower Anchors and Tethers for Children), child restraint seats, second row, 2 lower anchors for outboard seating positions only, 3 top tether anchors for all 3 seating positions	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.3 · 2026 buick encore gx fleet order guide, p.3 · 2027 buick encore gx fleet order guide, p.3	confirmed
URO	Driver Information Center, 8 inch diagonal fully digital color display, reconfigurable	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.2 · 2026 buick encore gx fleet order guide, p.2 · 2027 buick encore gx fleet order guide, p.2	confirmed
USS	USB charging ports, 2 (1 USB Type-A, 1 USB Type-C), charging only, rear of center console	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.2 · 2026 buick encore gx fleet order guide, p.2 · 2027 buick encore gx fleet order guide, p.2	confirmed
UTJ	Theft-deterrent system, electrical, unauthorized entry	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.6 · 2026 buick encore gx fleet order guide, p.6 · 2027 buick encore gx fleet order guide, p.6	confirmed
UUT	Tire Fill Alert	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.6 · 2026 buick encore gx fleet order guide, p.6 · 2027 buick encore gx fleet order guide, p.6	confirmed
UV2	HD Surround Vision	2025–2027	2025–2026: Preferred, Sport Touring, Avenir: O. 2027: Sport Touring, Avenir: O ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.21 · 2026 buick encore gx fleet order guide, p.23 · 2027 buick encore gx fleet order guide, p.21	confirmed
UVB	HD Rear Vision Camera	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.4 · 2026 buick encore gx fleet order guide, p.4 · 2027 buick encore gx fleet order guide, p.4	confirmed
UVD	Steering wheel, heated	2025–2027	Preferred, Sport Touring: O; Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.5 · 2026 buick encore gx fleet order guide, p.5 · 2027 buick encore gx fleet order guide, p.5	confirmed
V2P	Luggage rack, side rails, roof-mounted	2025–2027	2025–2026: Preferred: O; Sport Touring, Avenir: S. 2027: Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.6 · 2026 buick encore gx fleet order guide, p.6 · 2027 buick encore gx fleet order guide, p.6	confirmed
V92	Trailering provisions	2025–2027	Preferred, Sport Touring, Avenir: S; includes 4-wire electrical harness and 4-pin sealed connector ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.8 · 2026 buick encore gx fleet order guide, p.8 · 2027 buick encore gx fleet order guide, p.8	confirmed
VAV	LPO, All-weather floor mats	2025–2027	⛭ GM factory document — 2025 buick encore gx fleet order guide, p.11 · 2026 buick encore gx fleet order guide, p.11 · 2027 buick encore gx fleet order guide, p.11	confirmed
VEY	Fascia, front and rear	2025–2027	Preferred, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.5 · 2026 buick encore gx fleet order guide, p.5 · 2027 buick encore gx fleet order guide, p.6	confirmed
VHM	Vehicle health management, advanced warning of vehicle issues	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.6 · 2026 buick encore gx fleet order guide, p.6 · 2027 buick encore gx fleet order guide, p.6	confirmed
VJF	Bumpers, front and rear, Silver-painted insert	2025–2027	Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.5 · 2026 buick encore gx fleet order guide, p.5 · 2027 buick encore gx fleet order guide, p.5	confirmed
VK3	License plate bracket, front	2025–2027	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.12 · 2026 buick encore gx fleet order guide, p.13 · 2027 buick encore gx fleet order guide, p.12	confirmed
VLI	LPO, Cargo mat	2025–2027	⛭ GM factory document — 2025 buick encore gx fleet order guide, p.11 · 2026 buick encore gx fleet order guide, p.11 · 2027 buick encore gx fleet order guide, p.11	confirmed
VLL	LPO, Roof rack cross rails, set of 2, bright with black end caps (dealer-installed)	2025–2027	⛭ GM factory document — 2025 buick encore gx fleet order guide, p.12 · 2026 buick encore gx fleet order guide, p.13 · 2027 buick encore gx fleet order guide, p.13	confirmed
VMJ	Bumper, rear, molded color	2025–2027	Preferred: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.5 · 2026 buick encore gx fleet order guide, p.5 · 2027 buick encore gx fleet order guide, p.5	confirmed
VQK	LPO, Front and rear splash guards, custom molded	2025–2027	only in: FWD ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.12 · 2026 buick encore gx fleet order guide, p.13 · 2027 buick encore gx fleet order guide, p.12	confirmed
VRI	Shutters, front lower grille, active	2025–2027	Preferred, Sport Touring, Avenir: O ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.13 · 2026 buick encore gx fleet order guide, p.13 · 2027 buick encore gx fleet order guide, p.13	confirmed
VTI	Shutters, front upper grille, active	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7 · 2026 buick encore gx fleet order guide, p.7 · 2027 buick encore gx fleet order guide, p.7	confirmed
VV4	Wi-Fi Hotspot capable	2025–2027	Preferred, Sport Touring, Avenir: S ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.4 · 2026 buick encore gx fleet order guide, p.3 · 2027 buick encore gx fleet order guide, p.3	confirmed
VYW	LPO, Floor mats, premium carpeted	2025–2027	⛭ GM factory document — 2025 buick encore gx fleet order guide, p.11 · 2026 buick encore gx fleet order guide, p.11 · 2027 buick encore gx fleet order guide, p.11	confirmed
W2D	LPO, Vertical cargo net	2025–2027	⛭ GM factory document — 2025 buick encore gx fleet order guide, p.11 · 2026 buick encore gx fleet order guide, p.11 · 2027 buick encore gx fleet order guide, p.11	confirmed
WH6	LPO, Horizontal cargo net	2025–2027	⛭ GM factory document — 2025 buick encore gx fleet order guide, p.11 · 2026 buick encore gx fleet order guide, p.11 · 2027 buick encore gx fleet order guide, p.11	confirmed
ZDC	Tire, compact spare 16 inch (40.3 cm)	2025–2027	2025: Preferred, Sport Touring, Avenir: S. 2026–2027: Preferred, Sport Touring, Avenir: O; includes a 16 inch spare wheel and the Q8E jack; standard in 2025, a factory option from 2026 (GM Authority, 2025-03) ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.7 · 2026 buick encore gx fleet order guide, p.13 · 2027 buick encore gx fleet order guide, p.13	confirmed

Paint

Code	Description	Years	Models/Notes	Confidence
G42	Paint, Ceramic	2026	touch-up paint WA-234L; included in and only available with the WFP Studio Series package (Sport Touring AWD) ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.32	confirmed
G98	Paint, Copper Ice Metallic	2025–2026	touch-up paint WA-190J; extra cost on Preferred, not available on Sport Touring ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.29 · 2026 buick encore gx fleet order guide, p.32	confirmed
GAS	Paint, Brilliant Red	2026	touch-up paint WA-227K; new for 2026; extra cost on Preferred and Sport Touring ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.32	confirmed
GAZ	Paint, Summit White	2025–2027	touch-up paint WA-8624; not available on Avenir ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.29 · 2026 buick encore gx fleet order guide, p.32 · 2027 buick encore gx fleet order guide, p.30	confirmed
GB0	Paint, Ebony Twilight Metallic	2025–2027	touch-up paint WA-506B; extra cost on Preferred and Sport Touring ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.29 · 2026 buick encore gx fleet order guide, p.32 · 2027 buick encore gx fleet order guide, p.30	confirmed
GFM	Paint, Cinnabar Metallic	2025	touch-up paint WA-294F; 2025 only, built out for the model year; extra cost on Preferred and Sport Touring ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.29	confirmed
GK9	Paint, Ocean Blue Metallic	2025–2026	touch-up paint WA-193J; extra cost on Preferred and Sport Touring ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.29 · 2026 buick encore gx fleet order guide, p.32	confirmed
GKN	Paint, Aquamarine Blue Metallic	2025–2026	touch-up paint WA-253K; new for 2025; extra cost, not available on Preferred or Avenir; the 2026 guide marks it not available to order ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.29 · 2026 buick encore gx fleet order guide, p.32	confirmed
GP5	Paint, White Frost Tricoat	2025–2026	touch-up paint WA-485B; extra cost, not available on Preferred or Sport Touring ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.29 · 2026 buick encore gx fleet order guide, p.32	confirmed
GZB	Paint, Moonstone Gray Metallic	2025–2027	touch-up paint WA-180H; extra cost on Preferred and Sport Touring ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.29 · 2026 buick encore gx fleet order guide, p.32 · 2027 buick encore gx fleet order guide, p.30	confirmed

Interior Trim

Code	Description	Years	Models/Notes	Confidence
EKU	Interior trim, Ebony seats and interior with Whisper Beige stitching, Leatherette	2026	Sport Touring; included in and only available with the WFP Studio Series package ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.32	confirmed
H73	Interior trim, Ebony seats and interior with Santorini Blue stitching, Leatherette	2025–2027	Sport Touring ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.29 · 2026 buick encore gx fleet order guide, p.32 · 2027 buick encore gx fleet order guide, p.30	confirmed
HGM	Interior trim, Ebony seats with Ebony interior accents, perforated leather-appointed	2025–2026	Avenir ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.29 · 2026 buick encore gx fleet order guide, p.32	confirmed
HN8	Interior trim, Ebony seats with Ebony interior accents, cloth with Leatherette	2025–2027	Preferred ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.29 · 2026 buick encore gx fleet order guide, p.32 · 2027 buick encore gx fleet order guide, p.30	confirmed
HPM	Interior trim, Whisper Beige seats with Ebony interior accents, perforated leather-appointed	2025–2027	Avenir ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.29 · 2026 buick encore gx fleet order guide, p.32 · 2027 buick encore gx fleet order guide, p.30	confirmed
HPN	Interior trim, Whisper Beige seats with Ebony interior accents, cloth with Leatherette	2025–2026	Preferred ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.29 · 2026 buick encore gx fleet order guide, p.32	confirmed
HWC	Interior trim, Whisper Beige seats with Ebony interior accents, Leatherette	2025–2026	Sport Touring; the 2026 guide marks it not available to order ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.29 · 2026 buick encore gx fleet order guide, p.32	confirmed

Internal / Process

Code	Description	Years	Models/Notes	Confidence
FE9	Emissions, federal requirements	2025–2027	internal code ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.13 · 2026 buick encore gx fleet order guide, p.13 · 2027 buick encore gx fleet order guide, p.13	confirmed
NB8	Emissions override, California	2025–2027	internal code; for dealers in California-emissions states when the buyer will register the vehicle outside those states ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.13 · 2026 buick encore gx fleet order guide, p.14 · 2027 buick encore gx fleet order guide, p.13	confirmed
NB9	Emissions override, state-specific	2025–2027	internal code; for dealers ordering vehicles in states that use the YF5 or NE1 emissions ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.13 · 2026 buick encore gx fleet order guide, p.14 · 2027 buick encore gx fleet order guide, p.13	confirmed
NC7	Emissions override, federal	2025–2027	internal code; for dealers in federal-emissions states ordering vehicles with YF5 or NE1 emissions ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.14 · 2026 buick encore gx fleet order guide, p.14 · 2027 buick encore gx fleet order guide, p.14	confirmed
NE1	Emissions, state requirements	2025–2027	internal code; the list of states differs by year (New Mexico is named from 2026) ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.13 · 2026 buick encore gx fleet order guide, p.14 · 2027 buick encore gx fleet order guide, p.13	confirmed
YF5	Emissions, California state requirements	2025–2027	internal code ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.13 · 2026 buick encore gx fleet order guide, p.13 · 2027 buick encore gx fleet order guide, p.13	confirmed

Sources

Factory documents (T1)

buick/2025-buick-encore-gx-fleet-order-guide.txt
buick/2026-buick-encore-gx-fleet-order-guide.txt
buick/2027-buick-encore-gx-fleet-order-guide.txt

Other sources

NICB VIN manuals in docs/reference/nicb/: nicb2020-gm.txt p.161–162 (2020 GX series codes MA to MG), nicb2024-gm.txt p.158, nicb2026-gm.txt p.145 (series names).
https://en.wikipedia.org/wiki/Buick_Encore_GX — read 2026-10-07 with a plain request (HTTP 200, no block). Used for the VSS-F platform and the GM Korea Incheon assembly.
https://gmauthority.com/blog/2026/09/2027-buick-encore-gx-seemingly-getting-a-short-production-run/ — read 2026-10-07 through the Firecrawl CLI (the owner's allowed workaround for gmauthority.com; no block, login wall or CAPTCHA seen). Used for the 2027 LBP drop and the Studio Series package ending.
https://gmauthority.com/blog/2025/03/here-is-2026-buick-encore-gx-pricing-with-options-and-packages/ — read 2026-10-07 through the Firecrawl CLI. Names C3U, CWM, Y6L and WPM.
https://gmauthority.com/blog/2026/09/this-2027-buick-encore-gx-gets-reduced-option-package-availability/ — read 2026-10-07 through the Firecrawl CLI. Names WPA, TB5, Y55, WFP, RVB, CWM, Y6L and C3U.
https://gmauthority.com/blog/2025/03/2026-buick-encore-gx-drops-standard-spare-tire/ — read 2026-10-07 through the Firecrawl CLI. Names ZDC and KTI.
https://gmauthority.com/blog/2025/07/heres-how-much-the-2026-buick-encore-gx-can-tow/ — read 2026-10-07 through the Firecrawl CLI. Names PDE, LBP, L3T and the 5.45 and 3.17 ratios.
https://gmauthority.com/blog/2026/03/2027-buick-encore-gx-officially-drops-this-engine-choice/ — read 2026-10-07 through the Firecrawl CLI. Names LBP and L3T.