Worst 1991 Pontiac Bonneville Problems
Top 3 most-reported issues with average mileage at failure.
Automatic Transmission
Service Brakes, Hydraulic:Foundation Components
Engine And Engine Cooling:Engine
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All Problems by Category
Every NHTSA complaint category for the 1991 Pontiac Bonneville.
| Component | Complaints | Crashes | Fires | Avg Mileage | Volume |
|---|---|---|---|---|---|
| Automatic Transmission | 3 | — | — | — | |
| Service Brakes, Hydraulic:Foundation Components | 3 | 1 | — | — | |
| Engine And Engine Cooling:Engine | 2 | — | 1 | — | |
| Seat Belts:Front:Webbing | 2 | 2 | — | — | |
| Unintended Acceleration | 2 | — | — | — | |
| Electrical System:12v/24v/48v Battery | 1 | — | — | — | |
| Electrical System:Alternator/Generator/Regulator | 1 | — | — | — | |
| Electrical System:Wiring:Interior/Under Dash | 1 | — | — | — | |
| Engine And Engine Cooling:Engine:Gasoline | 1 | — | — | — | |
| Equipment:Appliance:Air Conditioner | 1 | — | — | — | |
| Fuel System, Gasoline:Delivery:Hoses, Lines/Piping, And Fittings | 1 | — | — | — | |
| Interior Lighting | 1 | — | — | — | |
| Latches/Locks/Linkages:Doors:Latch | 1 | — | — | — | |
| Latches/Locks/Linkages:Hood:Latch | 1 | — | — | — | |
| Seats:Front Assembly:Recliner | 1 | 1 | — | — | |
| Service Brakes, Hydraulic:Antilock/Traction Control/Electronic Limited Slip | 1 | — | — | — | |
| Service Brakes, Hydraulic:Antilock/Traction Control/Electronic Limited Slip:Control Unit/Module | 1 | — | — | — | |
| Brake Master Cylinder | 1 | — | — | — | |
| Structure:Body:Door | 1 | — | — | — |
Search Owner Complaints
Read what owners actually reported to NHTSA for the 1991 Pontiac Bonneville. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.
Other Pontiac Bonneville Years
1991 Pontiac Bonneville — FAQ
Answers based on real NHTSA complaint and recall data for this specific model year.
Is the 1991 Pontiac Bonneville reliable?
What are common problems with the 1991 Pontiac Bonneville?
How safe is the 1991 Pontiac Bonneville?
Does the 1991 Pontiac Bonneville have any recalls?
Should I buy a 1991 Pontiac Bonneville?
Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinItel.
Wider context: See the full Pontiac Bonneville reliability report with year-by-year comparison and generation analysis.
Check Your Specific 1991 Pontiac Bonneville
Real owner complaints tell you about the model. The VIN tells you about your specific car — accidents, title issues, odometer fraud.
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