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• GM VIN Decoder Our free VIN decoder can be used to determine everything from vehicle trim level to fuel tank capacity to crash test ratings. However, please note that we have limited data for older vehicles.
• Apr 10, 2018  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 Latin characters in the fourth position.
• Decoding the Tri-Five Chevy 55 56 57 Passenger Car VIN. Vehicle Identification Number (VIN): The VIN tag is located on a stainless steel plate that is spot welded to the driver's side front door jamb. Although, hard to see, Chevrolet also had the vehicle identification number stamped on the frame roughly below the drivers seat.

1. Vehicle Identification Number Decoding Free
2. Vehicle Identification Number Check

There are three Corvette VIN decoder sequences for 2009 Corvette ZR1. The First Numbering Sequence is: 95700001 these are the 'pilot cars'. They were built in early June 2008 and most have since been sold to Corvette dealers.

It is the tenth digit that gives you the model year for GM. Ive been working at a Chevy dealer for years running codes/vins.For example ( my examples only apply to 2001-2015 gm vehicles)Remember 10th digit from the beginning, (left to right).2001... 12002...22003...3.etc..2009...9After 09 the tenth digit was given a letter2010... A2011...B2012...C2013...D2014...E2015...FEtc...We have another 20 years worth of lettersThanks for reading.You can always check your model year by looking in your drivers side door jamb and it will give you model year. If it was assembled in July or later it's probably a model year later than listed.

• 1American GM
• 2Body style codes
  • 2.2American engine codes

American GM[edit]

American VIN format[edit]

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:

Platform codes[edit]

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 Latin characters in the fourth position. Position five encodes the specific model and trim level of the vehicle.

Body style codes[edit]

The Body type is specified as character six of the American GM VIN for passenger cars.

American restraint types[edit]

The restraint type is specified as character seven of the American GM VIN for passenger cars.

Missing Entry: Corvette Z06, vin code S 5.7L LS6 2001-2204 and vin code E 7.0L LS7 2005-2010 and later. 2010 Impala vin code K is a 3.5L MFI

American engine codes[edit]

GM encodes the engine type in character 8 of the VIN. The following table outlines the various engines encoded there:

Engine codes for passenger cars[edit]

2010 Chevy Malibu engine code B, 2.4lMistake 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. This engine made it's first appearance on the A-Body sisters Buick Century and Oldsmobile's Cutlass Ciera 'S', the 1994 L-Body Chevrolet Beretta/Corsica, and it's N-Body siblings, which include the Buick Skylark, Oldsmobile Achieva, and Pontiac Grand Am, but Oldsmobile also had offerings of this engine offering in the 'Late' 1993 W-Body Cutlass for the engine to also incorporate into the 1994 model year W-Bodies, which included the Buick Regal and Pontiac Grand Prix, with the aforementioned Monte Carlo and it's sedan equivalent, the revised Lumina to follow suit the next model year, 1995. It continued it's second iteration, the LG8 3.1 in 2000 (VIN code 'J'), which finally ceased production in the 2005 model year W-Body version of the Century.

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: 1985-1988 Pontiac Fieros have a 9 engine code for the 2.8L L44 V6.

Missing Entry: The 2009 Corvette and 2011 Camaro SS use a W engine code for the 6.2L LS3 V8.

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Missing Entry: Vin Code V for 2.4 L LE9 2.4L MFI I4

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Warning: Issues with the decoding are related to year/model combinations. Such as the 4.1 V6 is not included in the list, however it was used on El Dorada and some Cadillac models. Each Year has different break down for each code, a complete list would be a subject of its own. Along with Plants and some model break downs over years.

Missing Entry: 1991 Limo with engine code 7, is not listed. According to one source the limo engine is a 5.7L.

Missing Entry: Corvette Z06, vin code S 5.7L LS6 2001-2204 and vin code E 7.0L LS7 2005-2010 and later

LY7; 3.6; v6

Engine codes for light trucks[edit]

There is a mistake for 2012. The engine code for 4.8 L Flexfuel engine is an A and is not listed.

American GM factories[edit]

List of GM Factories3GCPCREC3EG483841

GM WMIs[edit]

Also mistake on Country codes...GMC light trucks are not listed. The code is 1GT which indicates Ft Wayne, IN.Missing 2G6 on Country Codes.