How to decode a 1991 Pontiac Bonneville VIN
Characters 1-3 of a 1991 Pontiac Bonneville VIN
A World Manufacturer Identifier (WMI) is a unique code used to identify the maker and country of origin of a vehicle. For the 1991 Pontiac Bonneville, the WMI “1G2” signifies that it is manufactured by General Motors LLC in the United States, specifically in Warren, Michigan. This code is the first segment of the Vehicle Identification Number (VIN), enabling the recognition of the vehicle’s manufacturer and type. Through the WMI, one can also ascertain that the Pontiac Bonneville from this period is classified as a passenger car. This system ensures a standardized method for identifying vehicles worldwide, making information about the car’s origin and its manufacturer readily accessible.
List of WMI Codes for a 1991 Pontiac Bonneville
WMI: 1G2
- Model Years Covered: 1987-2005
- Example VIN: 1G2HX54C2M1241658
- 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 1991 Pontiac Bonneville 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 1991 Pontiac Bonneville:
| Known VDS for a 1991 Pontiac Bonneville |
|---|
| HX54C |
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 1991 Pontiac Bonneville 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 1991 Pontiac Bonneville VIN — Year Code
| Year Code | Year |
|---|---|
| M | 1991 |
11th Character in the 1991 Pontiac Bonneville VIN — Plant Code(s)
Known 1991 Pontiac Bonneville Assembly Factory VIN Code(s)
| Plant Code | Plant City | Plant State | Plant Country | Plant Company Name | Example VIN |
|---|---|---|---|---|---|
| 1 | Wentzville | Missouri | United States | Wentzville Assembly | 1G2HX54C2M1241658 |
VIN Characters 12 - 17 of a 1991 Pontiac Bonneville
The final 6 characters in a 1991 Pontiac Bonneville’s 17-digit VIN are its serial number, which will be unique to every vehicle.
Check your Pontiac Bonneville’s VIN below:
How to find a 1991 Pontiac Bonneville’s VIN?
Locating the VIN number on your 1991 Pontiac Bonneville is key for identification. Here’s how to find it:
- Look at the dashboard on the driver’s side of your 1991 Pontiac Bonneville, where it should be visible through the windshield on a small plate.
- Examine the driver’s side door jamb on your Bonneville; the VIN can often be found on a label or sticker where the door latches when closed.
- Check the front of the engine block; in many vehicles, including the 1991 Pontiac Bonneville, the VIN is stamped onto the engine itself.
- Inspect the rear wheel well directly above the tire; sometimes the VIN is placed in this location for additional verification.
- Look underneath the spare tire; sometimes the VIN is printed in the area where the spare tire is stored in your Pontiac Bonneville.
- Consult your vehicle’s insurance card or registration documents, as the VIN for your 1991 Pontiac Bonneville will be listed there as well.
What info can a 1991 Pontiac Bonneville VIN reveal?
- Model Year: The VIN may indicate a vehicle from the year 1991, possibly highlighting its specific age and potential generational design features.
- Vehicle Specifications: This VIN suggests a Bonneville SE model, possibly equipped with a V-shaped engine configuration, attributing to its specific performance characteristics.
- Engine Specifications: The engine may boast a displacement of 3.8 liters (3800 CC or 231.89 CI) with six cylinders, potentially providing insights into the vehicle’s power and efficiency.
- Fuel Delivery System: The multipoint fuel injection (MPFI) system may indicate a more efficient fuel delivery, possibly improving fuel economy and engine performance.
- Manufacturing Location: According to the VIN, the vehicle may have been constructed in Wentzville, Missouri, United States by Wentzville Assembly, possibly unveiling the vehicle’s assembly location, offering clues to its manufacturing standards and origin.
- Safety Features: The inclusion of an automatic seat belt type may suggest the vehicle’s safety offerings, which can hint at the broader safety features available for this model.
- Body and Design: Described as a Sedan/Saloon with four doors, the VIN possibly reveals the vehicle’s body class and structure, indicating its intended use and capacity.
Don’t have your 1991 Pontiac Bonneville’s VIN handy? Try our license plate lookup instead!
Sample VIN Decode Report for a 1991 Pontiac Bonneville
| Vehicle Spec | Value |
|---|---|
| Body Class | Sedan/Saloon |
| Displacement (CC) | 3800.0 |
| Displacement (CI) | 231.89022755998 |
| Displacement (L) | 3.8 |
| Doors | 4 |
| Engine Configuration | V-Shaped |
| Engine Manufacturer | BOCF |
| Engine Number of Cylinders | 6 |
| Fuel Delivery / Fuel Injection Type | Multipoint Fuel Injection (MPFI) |
| Model | Bonneville |
| Model Year | 1991 |
| Plant City | Wentzville |
| Plant Company Name | Wentzville assembly |
| Plant Country | United States |
| Plant State | Missouri |
| Seat Belt Type | Automatic |
| Trim | SE |
| Vehicle Descriptor | 1G2HX54C*M1 |
| Vehicle Type | Passenger Car |
| Sample_VIN | 1G2HX54C2M1241658 |
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