Free GMC VIN Decoder — Decode Any GMC VIN

Decode any GMC VIN instantly and free. Enter a 17-character GMC VIN to reveal the model year, assembly plant, engine, transmission, drivetrain, body style, and trim, decoded from the VIN's WMI, VDS, and VIS sections using NHTSA vPIC data. No signup required.

What a GMC VIN reveals

World Manufacturer Identifier (WMI) confirming the GMC manufacturer and country of assembly.
Model year (10th character) and plant code for the GMC.
Engine, transmission, drivetrain, body class, and trim from the descriptor section.
Open NHTSA recalls and 5-star NCAP safety ratings for the decoded GMC model.

GMC WMI codes (VIN positions 1–3)

The first three characters — the World Manufacturer Identifier — tell you it's a genuine GMC and where it was built. Common GMC WMIs:

WMI	What it means
1GT	GMC pickup truck (Sierra), United States
1GK	GMC SUV (Yukon, Acadia), United States
1GD	GMC incomplete vehicle / chassis, United States
3GT	GMC truck assembled in Mexico

A GMC VIN whose first characters don't match a registered GMC WMI is a red flag for VIN cloning — decode it and compare the result against the car in front of you.

How to read a GMC VIN, position by position

Position	What it encodes on a GMC
1–3	World Manufacturer Identifier — GMC division and country of assembly
4–8	Vehicle descriptor — model line, body style, restraint system, and engine
9	Check digit — a calculated value that validates the whole VIN (catches typos and many forgeries)
10	Model year (see the year-code chart below)
11	Assembly plant code
12–17	Sequential production serial number

GMC shares GM's VIN structure: positions 4–6 carry series and body (the ton-rating and cab questions), 7 the restraint system, 8 the engine code.

GMC VIN year codes (position 10)

The 10th character is the model year. Letters repeat on a 30-year cycle (I, O, Q, U, Z and 0 are never used) — the 7th character disambiguates: if it's a letter, the VIN is from 2010 or later.

Code	Model year	Code	Model year	Code	Model year
A	1980 / 2010	B	1981 / 2011	C	1982 / 2012
D	1983 / 2013	E	1984 / 2014	F	1985 / 2015
G	1986 / 2016	H	1987 / 2017	J	1988 / 2018
K	1989 / 2019	L	1990 / 2020	M	1991 / 2021
N	1992 / 2022	P	1993 / 2023	R	1994 / 2024
S	1995 / 2025	T	1996 / 2026	V	1997 / 2027
W	1998	X	1999	Y	2000
1	2001	2	2002	3	2003
4	2004	5	2005	6	2006
7	2007	8	2008	9	2009

Beyond the free decode

A decode shows factory specs; a full GMC vehicle history report (from $5.12/report) adds accidents, title brands (salvage, flood, lemon), odometer history, prior owners, and Copart/IAAI auction photos and sale prices.

How to decode a GMC VIN — questions

How do I decode a GMC VIN for free?

Enter the 17-character GMC VIN into VinCheck's free decoder. It instantly returns the model year, assembly plant, engine, transmission, drivetrain, body style, and trim, decoded from the VIN's WMI, VDS, and VIS sections using NHTSA vPIC data — no signup or payment.

How do I read a GMC VIN number?

A GMC VIN has 17 characters: the first 3 (WMI) identify GMC and the country of assembly, characters 4-8 (VDS) describe the model, engine, and body, the 9th is a check digit, the 10th is the model year, the 11th is the plant, and the last 6 are the serial number. VinCheck's decoder reads all of them for you.

What can a GMC VIN tell you?

A GMC VIN reveals the exact model year, engine and transmission, drivetrain, body class, trim, and manufacturing plant — plus open NHTSA recalls and safety ratings. A full history report adds accidents, salvage/flood/lemon title brands, odometer readings, and prior auction sales.

Where is the VIN on a GMC?

On most GMC vehicles the 17-character VIN is on the dashboard by the base of the windshield (driver's side), on the driver's door jamb sticker, and on the title, registration, and insurance card.