Problems · NHTSA complaints

1997 Pontiac Bonneville problems

Owners filed 158 complaints about the 1997 Pontiac Bonneville with NHTSA between Jan 1997 and Dec 2015. The most-cited component is engine and engine cooling (54).

Complaints
158
Filed with NHTSA
Crashes
3
Reported by owners
Fires
17
Reported by owners
Injuries
8
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Engine and engine cooling54
  2. Electrical system27
  3. Power train17
  4. Steering15
  5. Service brakes, hydraulic11
  6. Fuel system, gasoline9
  7. Vehicle speed control9
  8. Air bags5
  9. Exterior lighting4
  10. Visibility4
  11. Seat belts4
  12. Seats3
  13. Wheels3
  14. Suspension2

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Data from NHTSA Complaints API · synced Nov 10, 2026NHTSA vehicle page
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
199713
199815
199914
200028
200114
200223
200314
200411
200511
20064
20072
20082
20093
20101
20110
20121
20130
20141
20151

Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.

03 —Owner reports

Top problems in owners’ words

Verbatim from NHTSA complaints, newest first

Engine and engine cooling

54 reports10 fires
“TL* THE CONTACT OWNS A 1997 PONTIAC BONNEVILLE. WHILE DRIVING APPROXIMATELY 35 MPH, THE VEHICLE STALLED. THE FAILURE RECURRED INTERMITTENTLY. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC FOR DIAGNOSTICS WHERE THE MECHANIC WAS UNABLE TO DIAGNOSE THE FAILURE. THE MECHANIC REPLACED THE BATTERY AND CHECK OIL SENSORS. THE FAILURE CONTINUED AFTER THE REPAIR. THE VEHICLE WAS NOT FURTHER REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 107,000.”
Owner complaint to NHTSAFiled Mar 2, 2012Engine and engine coolingODI 10450042

Electrical system

27 reports6 fires
“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.”
Owner complaint to NHTSAFiled Dec 11, 2015Electrical systemODI 10809667

Power train

17 reports
“TL*THE CONTACT OWNS A 1997 PONTIAC BONNEVILLE. WHILE DRIVING AT 55 MPH THE ACCELERATOR PEDAL BECAME STUCK AND THE VEHICLE SPED INTO FULL THROTTLE. THE CONTACT DEPRESSED THE BRAKE PEDAL, BUT WAS UNABLE TO STOP THE VEHICLE. THE CONTACT HAD TO SHIFT THE GEAR INTO REVERSE IN ORDER TO STOP THE VEHICLE. THE FAILURE CONTAINED NO WARNING INDICATORS. THE VEHICLE WAS TOWED TO A REPAIR SHOP AND WHEN THE MECHANIC STARTED THE VEHICLE, IT WAS STILL AT FULL THROTTLE. THE MECHANIC REPLACED THE TRANSMISSION. THE PASSENGER SUSTAINED MINOR INJURIES. THE CURRENT AND FAILURE MILEAGE WAS 110,000. *AK”
Owner complaint to NHTSAFiled Apr 10, 2007Power train, Vehicle speed controlODI 10187429

Steering

15 reports
“THE CAR LOST ALL POWER WHILE DRIVING ON SEVERAL OCCASIONS. IT WOULD JUST QUIT AND I WOULD HAVE NO BRAKES OR STEERING AND ALL GAUGES WOULD SHUT DOWN. SOMETIMES IT WOULD LOSE POWER AND THEN IT WOULD COME BACK ON WHILE I WAS STILL DRIVING CUTTING IN AND OUT REPEATEDLY. IT HAPPENED A LOT WHEN I WAS IDLING AT A CORNER AND THEN WOULD START THROUGH THE INTERSECTION. IT WOULD QUIT GOING THROUGH THE INTERSECTION. SOMETIMES IT WOULDN'T START AFTER DRIVING IT A SHORT DISTANCE. AFTER IT SAT FOR A FEW MINUTES, A FEW HOURS OR SOMETIMES OVERNIGHT IT WOULD JUST START LIKE THERE WASN'T ANY PROBLEM WITH IT. IT DIDN'T SPUTTER OR ACT LIKE IT WASN'T GETTING GAS OR ANYTHING, IT JUST WOULDN'T DO ANYTHING AND HAD A TOTAL LOSS OF ALL POWER. WE TOOK IT IN FOR REPAIR SEVERAL TIMES AND THEY COULD NEVER REPLICATE THE PROBLEM AND DIAGNOSTICS DIDN'T SHOW ANY PROBLEMS THAT WOULD CAUSE THIS ISSUE. I ASKED A COUPLE OF TIMES IF THERE WERE ANY RECALLS AND THE SERVICE GARAGE SAID NO. I FINALLY QUIT DRIVING THE CAR BECAUSE I WAS TIRED OF BEING STRANDED AND WITH TAKING MY CHANCES WITH IT LOOSING POWER DRIVING DOWN THE HIGHWAY OR THROUGH INTERSECTIONS IN HEAVY TRAFFIC. IT SOUNDS LIKE THE SAME ISSUE…”
Owner complaint to NHTSAFiled Apr 1, 2014Steering, EngineODI 10576488

Service brakes, hydraulic

11 reports1 fire
“DT*: THE CONTACT STATED THE HYDRAULIC BRAKE LINES WERE CORRODED AT EVERY CONNECTION. THE VEHICLE WAS TAKEN TO THE DEALERSHIP WHO DETERMINED THE BRAKE FLUID WAS LEAKING DUE TO THE CORROSION. THE DEALERSHIP INFORMED THE CONTACT THERE WERE 10-15 OTHER VEHICLES WITH THE SAME PROBLEM. UPDATED 9/5/2006 - *NM”
Owner complaint to NHTSAFiled Aug 17, 2006Service brakes, hydraulicODI 10165772

Fuel system, gasoline

9 reports1 fire
“IN EARLY NOVEMBER MY CAR (97 BONNEVILLE SSE) BEGAN EXPERIENCING TROUBLE STARTING. IT RARELY STARTED RIGHT UP BUT REQUIRED SEVERAL TRIES TO START. OCCASIONALLY I COULD SMELL GAS AFTER IT WAS STARTED MULTIPLE TIMES. THE IAC VALVE WAS REPLACED BUT THAT CHANGED NOTHING. AFTER SEVERAL MORE WEEKS OF THE ISSUE GETTING WORSE I SCHEDULED IT FOR SERVICE ON DEC 22. THE SERPENTINE BELT FELL OFF DEC 18; THE CAR WAS TOWED TO THE GARAGE DEC 21. ON DEC 22 THE CAR WAS "FIXED". WITHIN 24 HRS I KNEW THE STARTING ISSUE WAS NOT FIXED. I HAD TO START IT MULTIPLE TIMES EVERY TIME & COULD OFTEN SMELL GAS. I DON'T BELIEVE THAT THE GARAGE PAID ATTENTION TO THE REASON THE CAR WAS ORIGINALLY SCHEDULED FOR SERVICE & INSTEAD FIXED THE IMMEDIATE ISSUE. I BROUGHT IT BACK TO THE GARAGE DEC 26 BUT HAD TO LEAVE A MESSAGE WITH THE GAS ATTENDANT AS THE SERVICE DEPT WAS CLOSED. ON MON DEC 28 I WENT OUT TO START MY CAR FOR WORK. THE ENGINE CRANKED 1-2 TIMES THEN I HEARD A VERY LOUD "BANG" UNDER THE HOOD NEAR THE STEERING WHEEL. SMOKE POURED FROM UNDER THE HOOD ALMOST INSTANTLY. THE SMOKE RAPIDLY INTENSIFIED AND CHANGED COLOR. FIRE COULD THEN BE SEEN BENEATH THE ENGINE & ENGULFED A MAJOR PART OF IT…”
Owner complaint to NHTSAFiled Jan 4, 2010Fuel system, gasolineFire reportedODI 10298048
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.