1991 Pontiac Bonneville problems
The 1991 Pontiac Bonneville has 26 complaints on file with NHTSA. The largest share (23%) concerns brakes. After that come electrical system (12%) and engine (12%).
At a glance
- Complaints
- 26 filed with NHTSA
- Most reported
- Brakes 23% of complaints
- Crashes and fires
- 4 and 1
- Injuries and deaths
- 3 and 0
Source: NHTSA owner complaints
Where the complaints are
Share of this model year's complaints by the part of the car involved. One complaint can name more than one part, so the shares can add up to more than 100%.
What the data shows
Safety-related details: 4 complaints mention a crash; 1 complaint mentions a fire; 3 injuries reported. Its complaints are more severe on average than those of 89% of model years in our database.
Looking only at complaints filed within five years of the model year (so older and newer years are comparable), the 1991 ranks 16th most-complained-about out of 16 model years of the Pontiac Bonneville with enough data (10 complaints in that window). It is also covered by 1 safety recall campaign.
What owners wrote
A few complaints as filed, shortened and with personal details removed. The first ones are among the most serious reports for this model year; the rest are typical.
While driving on freeway I was struck by a drunk driver going approx. 70-75MPH. I was hit in the left rear of the car and I was immediately thrown back.after pulling over I found out that the seat back had broken and was in the fully reclined position. I was unable to pull the sear back to it's upright position, it only went half of that distance.
Dt*: the contact stated while driving 30 MPH on the highway, the rod bearing fractured along the engine without warning. This caused oil to leak onto the hot catalytic converter causing a fire to erupt within the engine compartment and spread through the air conditioning blower motor and into the cab of the vehicle. The driver exited the vehicle without injuries. The fire department was contacted and extinguished the fire. The vehicle was totaled due to the extensive fire damage.
Cruise control locked 65 MPH; would not release;engine accelerated;excessive effort to stop vehicle;very carefully braked; rode brakes 6 to 7 miles; no warning.
Tl*the contact owns a 1991 pontiac bonneville. While driving approximately 45 MPH in cold weather conditions, the transmission oil cooler line separated and caused transmission fluid to leak excessively. The vehicle was towed to the dealer and they stated that the VIN was not included in NHTSA campaign id number 96v015000 (power train:automatic transmission:cooling unit and lines); therefore, they would not assume responsibility for the repair. The vehicle has not been repaired.