Problems · by component
1997 Pontiac Bonneville electrical system problems
27 owner complaints to NHTSA about the 1997 Pontiac Bonneville cite electrical system, 17% of all 158 complaints for this model year.
Complaints
27
17% of all complaints
Crashes
0
Reported by owners
Fires
6
Reported by owners
Injuries
0
Reported by owners
What owners say about the electrical system
Verbatim from NHTSA complaints, newest first
“DRIVING AN SUDDENLY VEHICLE SHUTS DOWN, SPEED MAKES NO DIFFERENCE.STARTS BACK WITH NO PROBLEM. THIS IS A REGULAR PROBLEM, ALSO HAPPENS WHEN IDLING...MAKES FOR A VERY HAZARDOUS SITUATION. HAS HAPPENED ON THE FREEWAY SURFACE STREETS, TURNING, ACCELERATING, EVEN WHEN BRAKING.THERE HAVE BEEN TIMES WHEN IT WOULDN'T START AND NO DOCUMENTATION OR INVOICES AVAILABLE AT THIS TIME. WE HAVE TO TUG ON IGNITION WIRES. POSSIBLE REASON-IGNITION SWITCH UNDER THE STEERING WHEEL SECTION IS BAD. THIS VEHICLE HAS A CONSOLE, PLAN ON GETTING NEW IGNITION SWITCH.”
“CONSUMER STATED WHILE DRIVING VEHICLE AT 25 MPH SUDDENLY ALL ELECTRICAL COMPONENTS DIED. NO BRAKES/ NO POWER STEERING. TOOK VEHICLE TO DEALER, DEALER POPPED HOOD, AND NOTICED BATTERY ACID ALL OVER THE ENGINE COMPARTMENT, AND BATTERY CABLES WERE LOOSE. DEALER REPLACED CABLES, AND PUT JELLY AROUND THEM. FIVE DAYS LATER, CABLES WERE LOOSE AGAIN. CAUSE UNKNOWN. THE CABLE HAS LOOSEN AGAIN AND VEHICLE STALLED AND LOST ALL POWER. CONSUMER WAS LEFT STRANDED. *AK”
“NAR 1/29/2003. THE VEHICLE WAS DELIVERED TO THE CONSUMER WITH A BENT WATER PUMP AND A BENT WHEEL. THE ALTERNATOR, POWER STEERING PUMP, TRANSMISSION AND EGR VALVE WERE REPLACED. *JB”
“VEHICLE PARKED IN DRIVEWAY WITH FLUID DRIPPING IN FRONT OF PASSENGER SIDE FRONT TIRE. FOUND POSITIVE BATTERY POST (SIDE) SEPARATED FROM BATTERY CASE WITH BATTERY ACID LEAKING OUT. BATTERY TERMINAL WAS VERY DIFFICULT TO REMOVE FROM CABLES AND THERE WAS SLIGHT CORROSION DAMAGE TO BATTERY TRAY AREA.*AK”
“MY CAR WOULDN'T START AND THERE WERE NO ELECTRICAL COMPONENTS FUNCTIONING. I CALLED THE CAR DEALERSHIP WHERE I PURCHASED THE WARRANTY AND WAS TOLD TO MAKE SURE I DIDN'T HAVE A DEAD BATTERY BECAUSE THAT WAS NOT COVERED UNDER THE WARRANTY. I CALLED THE TOWING COMPANY AND THEY ATTEMPTED TO CHARGE THE BATTERY. BATTERY WOULD NOT CHARGE; THE CAR WENT "PUFF" AND CAUGHT ON FIRE. WHEN THE WRECKER DRIVER ATTEMPTE TO START THE CAR, HE HEARD A LOUD "POP" AND SMOKE WAS ROLLING OUT FROM UNDER THE HOOD. HE OPENED THE HOOD, BATTERY WAS INTACT, HOWEVER THE ENGINE WAS ON FIRE. AFTER FIRE WAS EXTINQUISHED, HE FOUND THE PLENUM(?SP) BLOWN OFF THE TOP F THE ENGINE AND THE OIL FILTLER TUBE WAS BLOWN OUT OF HE TOP OF TE MANIFOLD. WARRANTY COMPANY WOULD NOT COVER DUE TO THE FACT THE CAR CAUGHT ON FIRE. THEY SAID MY CAR INS SHOULD COVER IT. HOWEVER, I BELIEVE THE FIRE WAS THE RESULT OF A PREVIOUSLY EXISTING DEFECT. I WAS TOLD THE FOAM USED TO EXTINGUISH THE FIRE COULD POSSIBLY HAVE CAUSED MORE PROBLEMS IN THE ENGINE. WAS I SUPPOSED TO LET THE CAR COMPLETEY BURN UP? I DON'T THINK SO!*AK”
“WHILE MY WIFE WAS DRIVING HOME WITH OUR CHILDREN THE VEHICLE SUDDENLY SHUT OFF. MY WIFE WAS ABLE TO SAFELY PULL OFF THE HIGHWAY AND CONTACTED ME. WHEN I ARRIVED I FOUND THE POSITIVE BATTERY TERMINAL FELL OFF THE DELCO BATTERY, CAUSING ACID TO LEAK INTO THE BATTERY TRAY AND FRONT FRAME SECTION. I REPLACED BATTERY AND HAD TO REPAIR THE CABLE END BECAUSE THE END WAS SEIZED.*AK”
Showing 6 of 27 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.