Vehicle Identification Numbers (VIN codes)/GM/VIN Codes
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General Motors uses the following VIN formats and codes.
Contents |
[edit] American GM
[edit] American VIN format
GM has traditionally encoded the platform as the fourth character of the VIN. Other content includes an engine code and manufacturing plant. GM's VIN format is as follows:
| Position | Sample | Description |
|---|---|---|
| 1 | 1 | World Manufacturer Identifier |
| 2 | G | |
| 3 | 6 | |
| 4 | D | Platform |
| 5 | M | Platform Series Code |
| 6 | 5 | Body style |
| 7 | 7 | Restraint type |
| 8 | N | Engine type |
| 9 | 0 | Check digit |
| 10 | 3 | Model year |
| 11 | 0 | Factory ID |
| 12 | 1 | Sequential number |
| 13 | 2 | |
| 14 | 3 | |
| 15 | 7 | |
| 16 | 6 | |
| 17 | 2 |
[edit] Platform codes
GM used a lettered system of automobile platform codes for three decades. These letters were used as the fourth position of the VIN. Though today's GM platforms use Greek characters, they are still encoded with Western characters in the fourth position. Position five encodes the specific model and trim level of the vehicle.
| List of GM platforms | Platform Code |
Series Code |
Model |
|---|---|---|---|
| GM C platform | C | ||
| W | Buick Park Avenue | ||
| D, T | Cadillac DeVille | ||
| B | Cadillac Fleetwood | ||
| G | Cadillac Sixty Special | ||
| GM D platform | D | W | Cadillac Brougham |
| V | Buick Terraza | ||
| G, M, R, U | Cadillac CTS | ||
| GM E platform | E | C | Pontiac G8 |
| L, T | Cadillac Eldorado | ||
| Z | Buick Riviera | ||
| GM F platform | F | P | Chevrolet Camaro |
| S | Pontiac Firebird | ||
| V | Pontiac Firebird Formula/ Trans Am | ||
| GM G platform | G | R, S | Oldsmobile Aurora |
| GM H platform | H | P | Buick Le Sabre Custom |
| R | Buick Le Sabre Limited | ||
| X | Pontiac Bonneville SE | ||
| Y | Pontiac Bonneville SLE | ||
| Z | Pontiac Bonneville SSEi | ||
| GM J platform | J | B | Pontiac Sunfire |
| C, F | Chevrolet Cavalier | ||
| H | Chevrolet Cavalier Z24 | ||
| GM Epsilon platform | J | T, U | Saturn L200 |
| W | Saturn L300 | ||
| GM K platform | K | D, E, F | Cadillac Deville |
| S | Cadillac Seville/ Cadillac SLS | ||
| Y | Cadillac Seville/ Cadillac STS | ||
| GM L platform | L | ||
| D | Chevrolet Corsica Base | ||
| T | Chevrolet Corsica LT | ||
| Z | Chevrolet Corsica LTZ | ||
| ? | Chevrolet Beretta | ||
| W | Chevrolet Beretta Z26 | ||
| GM N platform | N | D | Chevrolet Malibu |
| E | Chevrolet Malibu LS/ Pontiac Grand Am SE |
||
| F | Pontiac Grand Am SE1/ Oldsmobile Alero GLS |
||
| G | Pontiac Grand Am SE2 | ||
| K | Oldsmobile Alero Level I | ||
| L | Oldsmobile Alero Level II | ||
| V | Pontiac Grand Am GT1 | ||
| W | Pontiac Grand Am GT | ||
| GM P platform | P | ||
| E | Pontiac Fiero Coupe | ||
| F | Pontiac Fiero SE | ||
| G | Pontiac Fiero GT | ||
| M | Pontiac Fiero Sport coupe | ||
| GM S platform | S | L | Pontiac Vibe |
| M | Pontiac Vibe AWD | ||
| N | Pontiac Vibe GT | ||
| GM V platform | V | R | Cadillac Allanté/ Cadillac Catera |
| S | Cadillac Allanté coupe | ||
| X | Pontiac GTO coupe | ||
| GM W platform | W | B | Chevrolet Impala / Buick Regal LS |
| C | Buick Lacrosse / Allure (in Canada) CX | ||
| D | Buick Lacrosse / Allure (in Canada) CXL | ||
| E | Buick Lacrosse / Allure (in Canada) CXS | ||
| F | Chevrolet Impala/ Buick Regal GS |
||
| H | Chevrolet Impala LS | ||
| J | Pontiac Grand Prix SE | ||
| K | Pontiac Grand Prix SE1 | ||
| L | Chevrolet Lumina | ||
| P | Pontiac Grand Prix GT / Chevrolet Impala | ||
| R | Pontiac Grand Prix GTP | ||
| S | Buick Century Custom | ||
| W | Chevrolet Monte Carlo LS | ||
| X | Chevrolet Monte Carlo SS | ||
| Y | Buick Century Limited | ||
| GM Y platform | Y | V | Cadillac XLR |
| Y | Chevrolet Corvette | ||
| Z | Chevrolet Corvette |
[edit] Body style codes
| VIN | Description |
|---|---|
| 1 | Two-Door Coupe |
| 2 | Two-Door |
| 3 | Two-Door Convertible |
| 5 | Four-Door Sedan |
| 6 | Four-Door Sedan Hatchback |
| 8 | Four-Door Station Wagon/Two-Door Hatchback |
| 9 | Four-Door Station Wagon |
[edit] American restraint types
The restraint type is specified as character seven of the American GM VIN for passenger cars.
| VIN Code | Description |
|---|---|
| 3 | Driver side airbag - front |
| 4 | 2 plus driver side airbags |
| 5 | 2 plus driver and passenger side airbags |
| 6 | 4 plus passenger sensor |
| 7 | 4 plus rear side airbags |
| 8 | Unknown |
| 9 | Seatbelts only - before introduction of standard airbags |
[edit] American engine codes
GM encodes the engine type in character 8 of the VIN. The following table outlines the various engines encoded there:
[edit] Engine codes for passenger cars
Something is wrong with this chart here are two examples; A 1990 Buick Lesabre and its 8th character is a C (partial Vin 1g4hr54C). It has a LN3 3800 engine. A 2005 Buick Lacross has an 8th vin character of 2 (partial vin 2g4wc532). It has a L26 3800 engine. Wikipedia's own link on the GM/Buick 3800 (http://en.wikipedia.org/wiki/GM_3800_engine) even notes that the LN3 was origianly denoted with a Vin code of 'C'
There is another mistake on the engine code M, this M code comes out on the 1995 - 1999 Chevrolet Monte Carlo and the engine is an RPO L82 3.1 SFI engine. The engine code is not shown here. Different website show different engine codes for this car, best bet is to go to the dealership and ask.
Two more mistakes: VIN code T also designates a 3.1 V6, the base engine in the 1990-92 Camaro/Firebird platform, and VIN code 8 is much better known as the L98 5.7 V8 TPI, standard in the 1985-91 Corvette and optional in the 1987-92 Camaro/Firebird platform .
Missing Entry: The 2009 Corvette uses a W engine code for the 6.2L LS3 V8.
| VIN | RPO | Size | Type | Fuel |
|---|---|---|---|---|
| 1 | L67 | 3.8 L | V6 | SFI |
| 2 | LY8 | 1.3 L | I4 | MFI |
| 4 | LN2 | 2.2 L | I4 | SFI |
| 6 | L42 | 2.2 L | I4 | MFI |
| 8 | LV6 | 1.8 L | I4 | MFI |
| 9 | L37 | 4.6 L | V8 | SFI |
| A | LGO | 2.3 L | I4 | MFI |
| C | L47 | 4.0 L | V8 | SFI |
| D | LD2 | 2.3 L | I4 | MFI |
| E | LA1 | 3.4 L | V6 | SFI |
| E | L03 | 5.0 L | V8 | TBI |
| F | L61 | 2.2 L | I4 | MFI |
| F | LB9 | 5.0 L | V8 | TPI |
| G | LS1 | 5.7 L | V8 | MFI |
| H | LX5 | 5.0 L | V8 | SFI |
| H | LG4 | 5.0 L | V8 | 4BBL |
| J | LG8 | 3.1 L | V6 | SFI |
| K | L36 | 3.8 L | V6 | SFI |
| L | LNK | 1.8 L | I4 | SFI |
| M | L95 | 1.4 L | I4 | MFI |
| M | LY9 | 2.6 L | V6 | MFI |
| N | LA3 | 3.2 L | V6 | MFI |
| P | LT1 | 5.7 L | V8 | SFI |
| P | LSJ | 2.0 L | SC Straight-4|I4 | SFI |
| R | L81 | 3.0 L | V6 | MFI |
| S | LS6 | 5.7 L | V8 | SFI |
| S | LB8 | 2.8 L | V6 | MPFi |
| T | LD9 | 2.4 L | I4 | SFI |
| U | LS2 | 6.0 L | V8 | MFI |
| W | L35 | 2.8 L | V6 | MPI |
| X | LG5 | 3.1 L | V6 | MPFI |
| Y | LD8 | 4.6 L | V8 | SFI |
[edit] Engine codes for light trucks
VIN Size Type Fuel
1 6.6 L V8 Diesel
2 6.6 L V8 Diesel
B 5.3 L V8 RPO-L33 Vortec 5.3L 310 Alum Blk HO
D 6.6L V8 Diesel
G 8.1L V8 (Vortec 8100)
J 6.2 L V8 Diesel, Non-Turbo
L 2.5 L L4
M 5.0 L V8
N 6.0 L V8 (GENIII LQ9)
P 5.3 L V8
K 5.7 L V8 TBI
R 5.7 L V8 Vortec
S 4.2 L L6
T 5.3 L V8 (GENIII LM7)
U 6.0 L V8 (GENIII LQ4)
V 4.8 L V8
W 4.3 L V6 CPI
X 4.3 L V6
Z 4.3 L V6 EFI
[edit] American GM factories
See List of GM factories.
[edit] GM WMIs
| WMI | Marque | Country |
|---|---|---|
| 1G1 | Chevrolet | United States |
| 2G1 | Canada | |
| 3G1 | Mexico | |
| KL1 | South Korea | |
| 1G2 | Pontiac | United States |
| 2G2 | Canada | |
| 3G2 | Mexico | |
| 5Y2 | United States | |
| 6G2 | Australia | |
| KL2 | South Korea | |
| 1G3 | Oldsmobile | United States |
| 2G3 | Canada | |
| 1G4 | Buick | United States |
| 2G4 | Canada | |
| 3G4 | Mexico | |
| 1G6 | Cadillac | United States |
| 1G8 | Saturn | United States |
| 9BG | Chevrolet | Brazil |
| 8AG | Argentina | |
| 8GG | Chile |
