Free 1999 GMC Suburban VIN Decoder

How to decode a 1999 GMC Suburban VIN

Characters 1-3 of a 1999 GMC Suburban VIN

A World Manufacturer Identifier (WMI) is a unique code used to identify the manufacturer of a vehicle, comprising the first three characters of the Vehicle Identification Number (VIN). This code provides detailed information about the vehicle, including its place of manufacture, the manufacturer’s name, and the type of vehicle it is. For the 1999 GMC Suburban, the WMIs of interest are “1GK” for vehicles manufactured in Warren, Michigan, United States by General Motors LLC and classified as Multipurpose Passenger Vehicles, and “3GT” for those identified specifically as trucks from the same location and manufacturer. These codes not only help in distinguishing vehicles from one another but also play a crucial role in vehicle tracking and registration processes. The inclusion of both “1GK” and “3GT” reflects the diverse range of vehicles produced under the 1999 GMC Suburban model, encompassing both passenger and truck variants.

List of WMI Codes for a 1999 GMC Suburban

WMI: 1GK

• Model Years Covered: 1987-2000
• Example VIN: 1GKGK26R1XJ717400
• Manufacturer Name: General Motors LLC
• Vehicle Type: Multipurpose Passenger Vehicle (MPV)
• City: Warren
• State or Province: Michigan
• Country: United States

WMI: 3GK

• Model Years Covered: 1995-1999
• Example VIN: 3GKGK26J0XG508726
• Manufacturer Name: General Motors LLC
• Vehicle Type: Multipurpose Passenger Vehicle (MPV)
• City: Warren
• State or Province: Michigan
• Country: United States

WMI: 3GT

• Model Years Covered: 1999
• Example VIN: 3GTGK26R9XG521332
• 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 1999 GMC Suburban 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 1999 GMC Suburban:

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 1999 GMC Suburban 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 1999 GMC Suburban VIN — Year Code

11th Character in the 1999 GMC Suburban VIN — Plant Code(s)

Known 1999 GMC Suburban Assembly Factory VIN Code(s)

VIN Characters 12 - 17 of a 1999 GMC Suburban

The final 6 characters in a 1999 GMC Suburban’s 17-digit VIN are its serial number, which will be unique to every vehicle.

What info can a 1999 GMC Suburban VIN reveal?

• Model Year: The VIN can possibly reveal the vehicles model year, offering insights into the age and potential market value of the vehicle.
• Body Class and Vehicle Type: It may specify the body class, such as Sport Utility Vehicle (SUV)/Multi-Purpose Vehicle (MPV), and the general vehicle type, like Multipurpose Passenger Vehicle.
• Engine Details: The VIN could include specifics about the engine, including the displacement (e.g., 6.5L or 396.654 CI), configuration (e.g., V-Shaped), the number of cylinders (e.g., 8), and the possibility of turbocharging.
• Drive Type and Brake System: It might indicate the vehicle’s drive type, for instance, 4WD/4-Wheel Drive/4x4, and the type of brake system, such as Hydraulic.
• Fuel Type: The VIN might reveal the primary fuel type the vehicle uses, such as Diesel.
• Plant Information: Production details, including the manufacturing plant’s city (e.g., Silao), country (e.g., Mexico), and state (e.g., Guanajuato), can be potentially determined.
• Gross Vehicle Weight Rating: Information on the vehicle’s weight class, for example, Class 2G: 8,001 - 9,000 lb (3,629 - 4,082 kg), may be included.

Sample VIN Decode Report for a 1999 GMC Suburban