Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 2 of 22 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
Service Brakes, Hydraulic. Review the 6 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Engine And Engine Cooling. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Power Train. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
3 crash reports1 fire reports2 injury reports
What owners actually said
22 reports
190,000 miles · Dec 3, 2008
Power Train
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 (POW…
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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. THE FAILURE AND CURRENT MILEAGES WERE 190,000.
NHTSA ODI #10250651
38,000 miles · Aug 15, 2006
Engine And Engine CoolingFire
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 DRIV…
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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. THE POLICE WERE ON THE SCENE AND A REPORT WAS TAKEN. THE DEALER WAS ALERTED. UPDATED 10/17/2006 - *NM
NHTSA ODI #10165522
Mileage unknown · Sep 30, 2003
Service Brakes, Hydraulic
CONSUMER STATED THAT AFTER MARKET MASTER CYLINDER HAD TO BE REPLACED ON THREE OCCASIONS BECAUSE THE PLUNGER PIN KEPT BREAKING. THIS CAUSED BRAKE PEDAL TO GO TO THE FLOOR WHEN BRAKES WERE APPLIED. UNABLE TO GET IN CONTACT WITH THE MANUFACTURER, FENCO / FENWICK AUTOMOTIVE PRODUCTS.*AK CONSUMER HAD THE MASTE…
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CONSUMER STATED THAT AFTER MARKET MASTER CYLINDER HAD TO BE REPLACED ON THREE OCCASIONS BECAUSE THE PLUNGER PIN KEPT BREAKING. THIS CAUSED BRAKE PEDAL TO GO TO THE FLOOR WHEN BRAKES WERE APPLIED. UNABLE TO GET IN CONTACT WITH THE MANUFACTURER, FENCO / FENWICK AUTOMOTIVE PRODUCTS.*AK CONSUMER HAD THE MASTER CYLINDER REPLACED FOUR TIMES AND THEY HAVE ALL FAILED. THE FIRST FAILED 79 DAYS AFTER INSTALLATION. THE SECOND ONE FAILED IMMEDIATELY WHILE BEING BLEED. THE THIRD ON FAILED WITH LESS THAN 1 MILE AND THE FOURTH ONE FAILED 150 MILES LATER. THE CONSUMER HAS BEEN IN CONSTANT CONTACT WITH THE MANUFACTURER. THEIR POSITION IS TO TEST THE MASTER CYLINDER FIRST AND THEN THE PIN IF NECESSARY. CONSUMER FEELS THIS IS UNACCEPTABLE AND IS A SAFETY HAZARD. *PH *NLM
NHTSA ODI #10041965
Mileage unknown · Feb 1, 2002
Electrical System
I HAVE CHANGED THE DASH AND HAD ALL WIRING CHECKED AND EVERYTHING IS FINE EXCEPT THAT I HAVE NO DASH LIGHTS COULD SOMEONE PLEASE TELL ME WHAT THE PROBLEM COULD BE. *AK
NHTSA ODI #757637
Mileage unknown · Dec 12, 2000
Electrical SystemInterior Lighting
THE BATTERY AND ALTERNATOR WERE REPLACED DUE TO FAILURE. *MJS
NHTSA ODI #558113
Mileage unknown · Oct 28, 1999
Latches/locks/linkages
METAL HOLDING THE CATCH PIN ON THE UNDERSIDE OF THE HOOD IS PRONE TO STRESS CRACKS WHILE DRIVING THE VEHICLE 55 MPH, THIS PROBLEM CAUSED THE HOOD TO FLY OPEN. PROBLEM HAS BEEN REPORTED TO THE DEALERSHIP. *AK
NHTSA ODI #852084
Mileage unknown · Mar 10, 1999
SeatsCrashInjury
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 HAL…
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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.
NHTSA ODI #704252
Mileage unknown · Feb 19, 1999
Engine And Engine Cooling
WHILE DRIVING 50-60 MPH VEHICLE CUTS OFF, DOES NOT MOVE. IN FIVE MINUTES IT WILL SOMETIMES START AGAIN. DEALER CONTACTED, AND CANNOT REMEDY THE PROBLEM. PROBLEM STILL EXISTS. PROVIDE FURTHER INFORMATION. *AK
NHTSA ODI #835064
Mileage unknown · Oct 29, 1998
Service Brakes, Hydraulic
WHEN DRIVING THE BRAKES ARE MAKING LOUD NOISE AND CONSUMER HAD FRONT BRAKES PUT ON TODAY, AND REAR BRAKES PUT ON LAST WEEK. HAS BEEN IN THE SHOP FOUR TIMES FOR REPAIRS, AND THE DEALER CAN'T DETERMINE THE PROBLEM. *AK
NHTSA ODI #829782
Mileage unknown · Jun 2, 1998
Fuel System, Gasoline
THE FUEL LINE FROM THE GAS TANK TO THE ENGINE RUSTED THROUGH, CAUSING THE GASOLINE TO LEAK. THE FUEL LINES ARE BEING REPLACED.AK
THE CONSOLE MOUNTED SHIFT LEVER MAY DISENGAGE FROM THE SHIFT CONTROL CABLE BRACKET CAUSING LOSS OF GEAR INDICATOR REFERENCE AND SHIFT SELECTOR OPERATION.
Consequence & remedy
Consequence: THE DRIVER CAN PLACE THE GEAR SHIFTER IN THE PARKPOSITION WITHOUT SETTING THE PARKING BRAKE AND THE TRANSAXLE MAY NOT ACTUALLY BEIN PARK, RESULTING IN UNEXPECTED VEHICLE MOVEMENT IF THE VEHICLE IS STOPPED ON AGRADE. ALSO, THE DRIVER CAN PLACE THE GEAR SELECTOR IN DRIVE OR REVERSE WITHOUTTURNING THE ENGINE OFF AND THE TRANSAXLE MAY NOT BE IN THE POSITION INDICATED,CAUSING THE VEHICLE TO MOVE IN THE OPPOSITE DIRECTION. BOTH CONDITIONS CANRESULT IN A VEHICLE ACCIDENT WITHOUT PRIOR WARNING.
Remedy: INSTALL TWO TRANSAXLE SHIFT CONTROL CABLE RETAINING CLIPS.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0
No exact-year investigations in this snapshot.
1991 Pontiac Bonneville Problems, Complaints & Recalls | Skip That Year
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