Free 2020 GMC Sierra VIN Decoder

How to decode a 2020 GMC Sierra VIN

Characters 1-3 of a 2020 GMC Sierra VIN

The World Manufacturer Identifier (WMI) is a unique sequence of characters assigned to every vehicle manufacturer to distinguish where and by whom a vehicle is made. For the 2020 GMC Sierra, the WMIs “1GT” and “3GT” are utilized by General Motors LLC, indicating these trucks are manufactured by this well-known American automaker. These identifiers are part of the Vehicle Identification Number (VIN), where “1GT” represents trucks made in the United States, specifically in Warren, Michigan, covering model years 1989 through 2024. Similarly, “3GT” is used for GMC Sierra trucks also produced in the same location and timeframe. This coding is crucial in providing detailed manufacturing information about the vehicle, including its origin and vehicle type, which, in this case, is a truck.

List of WMI Codes for a 2020 GMC Sierra

WMI: 1GT

• Model Years Covered: 1989-2024
• Example VIN: 1GT49ME70LF108057
• 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: 3GTU8DED0LG154530
• 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 2020 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 2020 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 2020 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 2020 GMC Sierra VIN — Year Code

11th Character in the 2020 GMC Sierra VIN — Plant Code(s)

Known 2020 GMC Sierra Assembly Factory VIN Code(s)

VIN Characters 12 - 17 of a 2020 GMC Sierra

The final 6 characters in a 2020 GMC Sierra’s 17-digit VIN are its serial number, which will be unique to every vehicle.

What info can a 2020 GMC Sierra VIN reveal?

• Model Year: The VIN can reveal the vehicles model year being the year 2020, providing insights into the age and potential market value of the truck.
• Engine Specifications: The 2020 Sierra is equipped with a 6.6-liter V-shaped engine that runs on diesel fuel, indicating its powerful performance capabilities and fuel efficiency.
• Safety Features: The vehicle offers a range of safety features including an Anti-lock Braking System (ABS), Automatic Crash Notification, Blind Spot Warning (BSW), and Curtain Airbags, emphasizing its commitment to safety for both driver and passengers.
• Body Type and Drive: The VIN details mention that the truck has a Pickup body class with a 4-wheel drive system, suitable for various usage scenarios catering to both crew and cargo needs.
• Advanced Technology: Standard features like Keyless ignition, a Backup Camera, and Electronic Stability Control (ESC) are complemented by optional advancements such as Forward Collision Warning (FCW) and Lane Keeping Assistance (LKA), showcasing a blend of traditional and modern technological amenities.
• Production Details: The vehicle was assembled in Flint, Michigan, United States, indicating its manufacturing origins.
• Weight and Dimensions: Classified under Class 3 with a gross vehicle weight rating ranging from 10,001 to 14,000 lb, along with a wheelbase extending from 158.94 to 172.00 inches, it underlines the Sierra’s capability as a heavy-duty truck.

Sample VIN Decode Report for a 2020 GMC Sierra