Free 1989 GMC Sierra VIN Decoder

How to decode a 1989 GMC Sierra VIN

Characters 1-3 of a 1989 GMC Sierra VIN

A World Manufacturer Identifier (WMI) is the initial set of three alphanumeric characters found at the beginning of a Vehicle Identification Number (VIN), which uniquely identifies the manufacturer, vehicle type, and country of origin. For the 1989 GMC Sierra, the WMI can be either “1GT” or “2GT,” indicating that these trucks are manufactured by General Motors LLC in Warren, Michigan, United States. The “1GT” WMI is used for trucks spanning model years 1989-2024, whereas “2GT” covers trucks from model years 1989-2009 and also includes vehicles from 2018. This coding system is essential for tracking, registration, and identifying vehicles in a standardized way across the automotive industry. For the 1989 GMC Sierra, these identifiers serve as a testament to its production details and manufacturer heritage.

List of WMI Codes for a 1989 GMC Sierra

WMI: 1GT

• Model Years Covered: 1989-2024
• Example VIN: 1GTFK24ZXKZ528622
• Manufacturer Name: General Motors LLC
• Vehicle Type: Truck
• City: Warren
• State or Province: Michigan
• Country: United States

WMI: 2GT

• Model Years Covered: 1989-2009, 2018
• Example VIN: 2GTGK39N2K1566211
• 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 1989 GMC Sierra VIN

These characters correspond to components like:

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

Below find the known vehicle descriptor codes for a 1989 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 1989 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 1989 GMC Sierra VIN — Year Code

11th Character in the 1989 GMC Sierra VIN — Plant Code(s)

Known 1989 GMC Sierra Assembly Factory VIN Code(s)

VIN Characters 12 - 17 of a 1989 GMC Sierra

The final 6 characters in a 1989 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 1989 GMC Sierra VIN reveal?

• Model Year: The VIN can reveal the vehicles model year being the year 1989, providing insights into the age and potential market value of the vehicle.
• Body Class and Doors: A VIN can specify the body class as Pickup with 2 doors, which offers a clear view of the vehicle’s size and utility purpose.
• Drive Type: The drive type can also be identified from the VIN. In this case, it reveals the vehicle being equipped with 4WD (4-Wheel Drive), which can help in understanding the vehicle’s handling characteristics and drive configuration.
• Engine Details: The VIN discloses a V-shaped 8-cylinder engine with a displacement of 5.7L (5700 CC/347.835 CI), providing insights into the vehicle’s powertrain setup and performance characteristics.
• Fuel Efficiency: The VIN indicates the vehicle operates on Gasoline with Throttle Body Fuel Injection (TBI), offering insights into the vehicle’s fuel management system.
• Manufacturer and Production Location: Information on the engine manufacturer labeled as “CPC” and the vehicle’s assembly occurring in Pontiac, Michigan, United States, can be deduced, hinting at the origin and quality control benchmarks associated with the vehicle’s production.
• Safety Features: The VIN discloses the vehicle’s brake system type as Hydraulic, providing an outlook on safety features.
• Modification Potential: The VIN mentions that an LPG conversion is feasible with the engine, indicating the potential for modifications.

Sample VIN Decode Report for a 1989 GMC Sierra

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