Free 2012 GMC Sierra VIN Decoder

How to decode a 2012 GMC Sierra VIN

Characters 1-3 of a 2012 GMC Sierra VIN

A World Manufacturer Identifier (WMI) is a unique code used to identify the manufacturer of a vehicle, its country of origin, and the vehicle type. Specifically, for the 2012 GMC Sierra, two WMIs, “1GT” and “3GT,” represent trucks manufactured by General Motors LLC in Warren, Michigan, United States. These identifiers not only indicate the vehicle’s make and model year range from 1989 to 2024 (for “1GT”) and 2006 to 2024 (for “3GT”) but also confirm that the vehicle falls under the truck category. This system of identification helps in tracking, regulating, and recalling vehicles, ensuring that each one is uniquely cataloged globally. Understanding a vehicle’s WMI is crucial for various stakeholders in the automotive industry, from manufacturers to consumers.

List of WMI Codes for a 2012 GMC Sierra

WMI: 1GT

• Model Years Covered: 1989-2024
• Example VIN: 1GT02ZCG0CZ103863
• Manufacturer Name: General Motors LLC
• Vehicle Type: Truck
• City: Warren
• State or Province: Michigan
• Country: United States

WMI: 3GT

• Model Years Covered: 2006-2024
• Example VIN: 3GTP2XE20CG100398
• Manufacturer Name: General Motors LLC
• Vehicle Type: Truck
• City: Warren
• State or Province: Michigan
• Country: United States

Characters 4-8 are the Vehicle Descriptor Section (VDS) of a 2012 GMC Sierra VIN

These characters correspond to components like:

• Engine type
• Transmission
• Model or trim
• Body style
• Gross vehicle weight range

Below find the most popular vehicle descriptor codes for a 2012 GMC Sierra:

Auto manufacturers have some discretion to decide how they want to code this section, but its contents and decoded results are generally consistent.

Character 9 is the “check digit” in a 2012 GMC Sierra VIN.

Based on a formula developed by the US Department of Transportation, it helps reduce fraud by ensuring the validity of the VIN.

10th Character in the 2012 GMC Sierra VIN — Year Code

11th Character in the 2012 GMC Sierra VIN — Plant Code(s)

Known 2012 GMC Sierra Assembly Factory VIN Code(s)

VIN Characters 12 - 17 of a 2012 GMC Sierra

The final 6 characters in a 2012 GMC Sierra’s 17-digit VIN are its serial number, which will be unique to every vehicle.

Check your GMC Sierra’s VIN below:

What info can a 2012 GMC Sierra VIN reveal?

• Model Year and Make: The VIN can reveal the vehicles model year being the year 2012, indicating the age and manufacturer/model of the vehicle as a GMC Sierra.
• Body Specifications: The VIN specifies the body class as a Pickup with 4 doors and a Crew/Super Crew/Crew Max cab type, designed for utility and passenger accommodation, providing insights into the vehicle’s design and seating capacity.
• Engine Details: It is noted that the VIN identifies the engine as a 6.6 Liter, V-Shaped, 8-cylinder DURAMAX engine (Model LML) with a displacement of 6600 CC, possibly indicating substantial power and performance capabilities.
• Drive Type and Fuel System: The VIN indicates that the truck is equipped with 4-Wheel Drive (4WD) and utilizes Diesel fuel, possibly emphasizing its off-road capability and efficiency.
• Safety Features: The VIN highlights safety features such as airbags located in all rows and a Direct Tire Pressure Monitoring System (TPMS), possibly enhancing passenger protection and the vehicle’s safety monitoring capabilities.
• Tire and Weight Specifications: It is mentioned that the vehicle falls within the Gross Vehicle Weight Rating range of Class 2H (9,001 - 10,000 lb), suggesting its robust build suited for heavy-duty tasks.
• Manufacturing Details: The VIN provides information that the vehicle was assembled in Flint, Michigan, United States by GMNA, providing insight into its production origin and quality assurance standards.

Sample VIN Decode Report for a 2012 GMC Sierra

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