1GKGMC multipurpose passenger vehicles
Held by General Motors LLC · registered in the United States
WMI 1GK shares most of its model list with one other code. Its rules start at model year 1981 and have no end year. The same rules name 7 percent of the 313 models found under all 108 codes of General Motors. Electrified versions appear in its rules: battery electric, hybrid and mild hybrid.
Models in the decoding rules, by model year
- GMT-4001987–1988
- Jimmy1987–1991
- Motorhome Chassis1987–1997
- R Conventional1987
- Rally1987–1996
- S15 Utility1987–1994
- Safari1987–2005
- Suburban1987–2000
- V Conventional1987
- Sierra1989–1994
- Sonoma1991–1994
- P Truck Forward1992–1997
- Yukon1992–2027
- Jimmy Utility1995–2005
- Yukon XL1995–2027
- Savana1996–2018
- Envoy2002–2009
- Acadia2007–2027
- Canyon2010–2011
- Terrain2010–2011
- Hummer EV SUV2024–2027
Where the rules place assembly
Plant countryUnited States
Plant locations namedArlington; Flint; Shreveport; Wentzville; Pontiac; Moraine; Janesville; Linden; Roanoke; Springhill; Oklahoma City; Doraville; Lansing; Detroit and 26 more
Bodies and power
Body classesSUV, Van, Incomplete - Cutaway, Pickup, Cargo Van, Incomplete, Incomplete - Motor Home Chassis, Motorhome
Primary fuelsGasoline, Diesel, Flexible Fuel Vehicle (FFV), Electric, Compressed Natural Gas (CNG), Ethanol (E85)
Codes with largely the same models
These codes have no page of their own: at least half of the models in their rules also appear under 1GK. The last column counts the shared models.
| Code | Holder | Vehicle type | Model years | Shared models |
|---|---|---|---|---|
| 1GJ | General Motors LLC | buses | 1981–open | 14 of 17 |
Compared with the closest code, 1GT
1GT is held by General Motors LLC. Measured by the overlap of the two model lists, it is the code closest to 1GK apart from those listed above.
Models in both17
Only under 1GKRally, P Truck Forward, Envoy, Hummer EV SUV
Only under 1GTAluminum Tilt, Bus Chassis, C/K Pickup, C5, C6, C7, Caballero, Forward Control, Heavy Conventional, Hi-Cube, Value Van, Vandura, S15 Pickup, S6, Magna Van, Sierra HD, Hummer EV Pickup, Sierra Limited
Model years1GK: 1981–open · 1GT: 1981–open
Plant countries only for 1GTMexico, Canada
Body classes only for 1GKIncomplete, Incomplete - Motor Home Chassis
Vehicle type1GK: multipurpose passenger vehicles · 1GT: trucks
Other codes held by General Motors
| Code | Vehicle type | Makes | Model years | Models |
|---|---|---|---|---|
| 1GN | multipurpose passenger vehicles | Chevrolet | 1981–open | 23 |
| 1G5 | multipurpose passenger vehicles | GMC, Pontiac | 1981–2009 | 19 |
| 3GN | multipurpose passenger vehicles | Chevrolet | 1995–open | 16 |
| 2CN | multipurpose passenger vehicles | Chevrolet, Geo | 1989–2014 | 14 |
| KL7 | multipurpose passenger vehicles | Chevrolet | 1985–open | 14 |
| 1GY | multipurpose passenger vehicles | Cadillac | 1995–open | 12 |
| 3GK | multipurpose passenger vehicles | GMC | 1995–open | 7 |
| 2GN | multipurpose passenger vehicles | Chevrolet | 1981–2023 | 6 |
98 more not shown here. All 108 codes of General Motors
Codes for GMC held by other companies are listed on the page for 1GT.
Source: NHTSA vPIC, October 2026 release (database updated October 17, 2026). How the figures are counted: How the catalog is read.