Free Buick Roadmaster VIN Decoder

How to decode a Buick Roadmaster VIN

Characters 1-3 of a Buick Roadmaster VIN

The World Manufacturer Identifier, commonly abbreviated as WMI, is a unique code that identifies the manufacturer of a particular vehicle. It is the first three characters of the Vehicle Identification Number (VIN), with each character revealing specific details about the vehicle. For the Buick Roadmaster, a luxury sedan produced by General Motors from 1991 to 1996, the WMI is ‘1G4’. This sequence indicates that the vehicle was manufactured by General Motors in the United States. The WMI code serves as a foundational part of VIN decoding, providing essential information about the vehicle’s origins and the company behind its production.

List of WMI Codes for a Buick Roadmaster

WMI: 1G4

• Model Years Covered: 1991-1996
• Example VIN: 1G4BR83E1MW404671
• Manufacturer Name: General Motors LLC
• Vehicle Type: Passenger Car
• City: Warren
• State or Province: Michigan
• Country: United States

Characters 4-8 are the Vehicle Descriptor Section (VDS) of a Buick Roadmaster 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 Buick Roadmaster:

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 Buick Roadmaster 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 Buick Roadmaster VIN — Year Code

11th Character in the Buick Roadmaster VIN — Plant Code(s)

Known Buick Roadmaster Assembly Factory VIN Code(s)

VIN Characters 12 - 17 of a Buick Roadmaster

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

What info can a Buick Roadmaster VIN reveal?

• Manufacturing Plant: The VIN could reveal the city and state where the Buick Roadmaster was possibly manufactured, such as Arlington, Texas, shedding light on its place of origin.
• Fuel Type: The VIN may provide information on the potential primary fuel type used by the vehicle, such as gasoline, offering insights into its fueling requirements.
• Engine Configuration: The VIN might indicate the possible engine configuration, such as a V-shaped engine, providing details about the vehicle’s engine setup.
• Transmission Type: The VIN can possibly indicate the type of transmission used in the Buick Roadmaster, giving an idea of its transmission system.
• Number of Doors: The VIN may specify the estimated number of doors on the vehicle, such as 4.00 doors, giving a general idea of its design.

Sample VIN Decode Report for a Buick Roadmaster