NHTSA owner reports · September 18, 2026 snapshot.
Power Train complaints
18 reportsClear category filter139,600 miles · Aug 27, 2010
Engine And Engine CoolingPower Train
IN FEBRUARY 2010, DRIVING AT 5 MPH WHILE MAKING RIGHT TURN ON BUMPY BLACKTOP, THE ENGINE FELL OUT FROM UNDER CAR CAUSING STEERING TO BECOME INOPERABLE. CAR WAS TOWED FROM SCENE. UPON INVESTIGATION IT WAS FOUND THAT 4 (REAR) OF 6 BOLTS HOLDING ENGINE CRADLE TO UNI-BODY FRAME PULLED THROUGH RUSTED RETAINERS. ALL (6) BOLTS, RETA…
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IN FEBRUARY 2010, DRIVING AT 5 MPH WHILE MAKING RIGHT TURN ON BUMPY BLACKTOP, THE ENGINE FELL OUT FROM UNDER CAR CAUSING STEERING TO BECOME INOPERABLE. CAR WAS TOWED FROM SCENE. UPON INVESTIGATION IT WAS FOUND THAT 4 (REAR) OF 6 BOLTS HOLDING ENGINE CRADLE TO UNI-BODY FRAME PULLED THROUGH RUSTED RETAINERS. ALL (6) BOLTS, RETAINERS, SPACERS AND INSULATORS WERE REPLACED. THE STEERING LINKAGE WAS REATTACHED AND THE CLOCK SPRING COIL KIT WAS REPLACED (CLOCK SPRING WAS TORN WHEN STEERING LINKAGE SEPARATED). THIS INCIDENT CAUSED A LOT OF CONCERN BECAUSE IT COULD HAVE HAPPENED AT ANY SPEED. TOWING, REPAIRS AND PARTS COST $805.14. 4 MONTHS LATER THE STEERING RACK WAS FOUND TO BE LEAKING AND WAS REPLACED AT A COST OF $450. NO PARTS HAVE BEEN RETAINED BUT PHOTOS OF THE BOLTS IN THE FRAME WITH THE ENGINE SUB FRAME HANGING ARE AVAILABLE. NATURALLY THE RETAINERS THAT FAILED ARE GONE BECAUSE THEY FELL OFF WHEN THEY FAILED. THE ENGINE DID NOT FALL ENTIRELY FROM THE VEHICLE BECAUSE THE 2 FRONT BOLTS WERE STILL INTACT AND THE UPPER ENGINE MOUNT HELD THE ENGINE SUB FRAME 2" ABOVE THE ROAD SURFACE. *TR
NHTSA ODI #10352248
71,000 miles · Jun 2, 2004
Electrical SystemEngine And Engine CoolingEquipment
I PURCHASED THIS CAR USED FROM A DEALER IN 2001 IN MICHIGAN. (I DON'T THINK THE AIR CONDITIONING EVER WORKED ). WITHIN A FEW MONTHS THE TRACTION CONTROL WENT OUT. IT WOULD BE ON, WHEN THE CAR STARTED, BUT WITHIN DRIVING 300FT. WOULD GO OUT AND COULD NOT BE TURNED BACK ON FROM THE BUTTON. A FEW MONTHS AFTER THAT ALL OF THE DASH L…
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I PURCHASED THIS CAR USED FROM A DEALER IN 2001 IN MICHIGAN. (I DON'T THINK THE AIR CONDITIONING EVER WORKED ). WITHIN A FEW MONTHS THE TRACTION CONTROL WENT OUT. IT WOULD BE ON, WHEN THE CAR STARTED, BUT WITHIN DRIVING 300FT. WOULD GO OUT AND COULD NOT BE TURNED BACK ON FROM THE BUTTON. A FEW MONTHS AFTER THAT ALL OF THE DASH LIGHTS WENT OUT WHEN EVER YOU TURNED ON THE HEAD LIGHTS. THIS WAS DUE TO A BAD SWITCH & A SHORT. THEN THE CRUSE CONTROL WENT OUT. A FEW MONTHS AFTER THAT WE HAD TO REPLACE THE HEAD GASKETS DUE TO THE ENGINE OVER HEATING BY AN UNKNOWN CAUSE. 1 MONTH AFTER THAT WE HAD TO REPLACE THE ENGINE AFTER THROWING A ROD AND CRACKING THE ENGINE BLOCK, DUE TO THE FACT THAT THERE WAS STILL FLUIND IN THE ENGINE FROM MELTED MANAFOLD.( THIS ALL TOOK PLACE BETWEEN NOV. 2001 & JAN. 2002) AFTER THAT THE IGNITION HAD TO BE REPLACED BECAUSE ONE OF THE WIRES WAS SEVERED DUE TO THE WHEEL TILT. (WE WOULD TILT THE WHEEL & COULD NOT START THE CAR). IN NOV. 2002 THE TRANSMISSION STARTED TO SLIP, WE HAD IT REPLACED. THEN ALL AT ONE TIME (2003) THE BATTERY WENT DEAD, THE TIMING CHAIN HAD JUMPED A TOOTH, THE CAM SENSOR, AND THE SPARK PLUGS WHICH HAD BEEN CHANGED A FEW WEEKS BEFORE. A FEW WEEKS AFTER THAT THE ENGINE OVERHEATED AGAIN DUE TO A LEAK IN THE COOLANT RESOVOIR BOTTEL, THIS CAUSED THE HEAD GASKETS TO BLOW AGAIN. IT IS NOW 2004 WE HAVE AN ONGOING ELECTRICAL PROBLEM. SINCE MID 2003 WE HAVE GONE THROUGH 3 PCM & 3 PROMS DUE TO THE FACT THE THEY KEPT FRYING ( A RESULT OF A BAD GROUND THAT STILL CAN NOT BE FOUND), AN ALTANATOR DUE TO THE FACT THAT IT HAD SPIKES. THE CHECK ENGING LIGHT WOULD CONSTANTLY COME ON & WHEN THE CODES WERE PULLED THE EGR VLAVE WAS LISTED, WE REPLACED IT AND STILL THE CHECK ENGINE LIGHT CAME ON DUE TO A STILL BAD PCM. NOW WHENEVER WE TURN ON THE BLINKER THE VOLTAGE GAGE MOVES IN TIME WITH IT DUE TO A SHORT. THE RPM'S SURGE AT TIMES WHILE CAR IS IN MOTION OR AT IDLE, CAUSING THE CAR TO SATLL OR BACKFIRE. THE CAUSE IS STILL UNKNOWN. *AK
NHTSA ODI #10074652
82,449 miles · Jan 15, 2004
Engine And Engine CoolingFuel System, GasolinePower Train
THE TRANSMISSION FAILED AT ~76,000 MILES. REPLACED AT GM DEALER WITH A REMANUFACTURED GM UNIT. 06/23/2001. BRAKE FAILURE - WARNING LIGHT AT 81,728 MILES. REPLACED MASTER CYLINDER AND REAR WHEEL CYLINDERS. ANTILOCK BRAKES HAVE ALWAYS BEHAVED STRANGELY AT TIMES BUT HAVE NEVER FAILED TO STOP THE CAR IN A REASONABLE DISTANCE. 09/2…
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THE TRANSMISSION FAILED AT ~76,000 MILES. REPLACED AT GM DEALER WITH A REMANUFACTURED GM UNIT. 06/23/2001. BRAKE FAILURE - WARNING LIGHT AT 81,728 MILES. REPLACED MASTER CYLINDER AND REAR WHEEL CYLINDERS. ANTILOCK BRAKES HAVE ALWAYS BEHAVED STRANGELY AT TIMES BUT HAVE NEVER FAILED TO STOP THE CAR IN A REASONABLE DISTANCE. 09/22/2001. ENGINE FAILURE AT 82,449 MILES. REPLACEMENT ENGINE INSTALLED AT INDEPENDENT REPAIR SHOP FOR $1400.00. . REPAIR LEAKING GENUINE GM REPLACEMENT TRANSMISSION. SIDE COVER LEAKS SEVERELY, DEALER ADVISES OUT OF WARRANTY PERIOD AND REPAIR COST OF $300+ FOR SIDE PAN GASKET. PROBLEM SOLVED AT LOCAL TRANSMISSION SHOP (MR. TRANSMISSION) FOR $92.95. IN ADDITION THE FOLLOWING NO LONGER FUNCTION OR FUNCTION IMPROPERLY: FUEL GAUGE DOES NOT WORK, REFILL BASED ON MILEAGE DRIVEN. ALSO THE FUEL PUMP WHINES VERY NOTICEABLY, CAN BE HEARD PLAINLY IN THE VEHICLE OVER THE RADIO. COST FOR REPAIR OF BOTH AT DEALER: $600+ DEPENDING ON PARTS REQUIRED. STEERING WHEEL CONTROLS FOR THE RADIO DO NOT FUNCTION. AUTOMATIC HEADLIGHT CONTROL WILL NOT TURN HEADLIGHTS OFF AFTER TURNING THEM ON. RESULT - BATTERY REPLACEMENT. NOW LEAVE THE CONTROL IN THE OFF POSITION. SPRING LOADED CENTER CONSOLE DOOR LATCH FAILED CAUSING CONSOLE DOOR TO REMAIN OPEN. REPLACED CONSOLE DOOR AND TWO VENTS THAT HAD BROKEN FOR $124.66. CONSOLE DOOR LATCH FAILED APPROXIMATELY ONE YEAR LATER (SAME FAILURE). REMOVED DOOR SPRING SO DOOR NOW STAYS CLOSED. DRIVERS SIDE DOOR LOCK JAMS WHEN USING KEY FOB, HAVE TO USE PASSENGER SIDE DOOR. NO LONGER USE KEY FOB, DOOR UNLOCKS PROPERLY WHEN USING THE KEY. WITHIN THE PAST YEAR THE PAINT HAS BEGAN TO PEEL ON THE TOP OF THE REAR QUARTER PANELS AND ROOF. I HAD A FLAT TIRE AND WENT TO RETRIEVE THE JACK, WHICH IS LOCATED IN THE PASSENGER SIDE OF THE TRUNK. THE JACK IS STORED IN A PLASTIC CASE THAT IS BOLTED TO A BRACKET. ONLY ONE WELD WAS MADE DURING MANUFACTURE ALLOWING THE BRACKET TO BREAK LOOSE. THE JACK CASE NOW JUST LIES IN TRUNK.
NHTSA ODI #10070481
79,000 miles · Oct 27, 2003
Power Train
TRACTION CONTROL TURNS OFF WHEN THE VEHICLE IS IN MOTION. RANDOMLY OCCURS AFTER TRAVELING SEVERAL HUNDRED FEET. HIGHER INCIDENCE AT TIME OF AUTOMATIC GEAR SHIFT INTO 3RD GEAR. CAN NOT BE RESET BY TRACTION CONTROL SWITCH - MUST COME TO FULL STOP AND TURN OFF ENGINE. WITH RAPID ACCELERATION AND MAINTAINING SPEED AT 55 MPH OR AB…
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TRACTION CONTROL TURNS OFF WHEN THE VEHICLE IS IN MOTION. RANDOMLY OCCURS AFTER TRAVELING SEVERAL HUNDRED FEET. HIGHER INCIDENCE AT TIME OF AUTOMATIC GEAR SHIFT INTO 3RD GEAR. CAN NOT BE RESET BY TRACTION CONTROL SWITCH - MUST COME TO FULL STOP AND TURN OFF ENGINE. WITH RAPID ACCELERATION AND MAINTAINING SPEED AT 55 MPH OR ABOVE "TRACTION CONTROL OFF" LIGHT WILL NOT COME ON. DROP DOWN TO ~50 MPH AND LIGHT COMES ON. GM DEALER CLAIMS NPF BUT PROBLEM OCCURS ALMOST EACH TIME OUT FOR ME. ANOTHER DEALER CLAIMS REPLACEMENT OF TC MODULE NECESSARY - SERVICE TECH TELLS ME IT IS COMMON PROBLEM TO 95 & 96 BONNEVILLES.*AK
NHTSA ODI #10043662
Mileage unknown · Aug 20, 2002
Engine And Engine CoolingPower Train
NO SUMMARY LISTED FOR ABOVE VEHICLE. *AK
NHTSA ODI #765952
Mileage unknown · Apr 2, 2001
Power Train
WAS DRIVING AND FELT AS IF TRANSMISSION WAS KICKED OUT OF GEAR AND INTO NEUTRAL. SHIFTED INTO ANOTHER GEAR AND SAME PROBLEM HAPPENED. SHIFTED INTO ANOTHER GEAR AND IT WAS THE SAME. FINALLY, ONLY GEAR LEFT WAS LOW GEAR. VEHICLE WAS COASTING. HAD NOT DRIVEN OR REVERSED. MANAGED TO GET TO A PARKING LOT. HAD VEHICLE TOWED. WAS …
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WAS DRIVING AND FELT AS IF TRANSMISSION WAS KICKED OUT OF GEAR AND INTO NEUTRAL. SHIFTED INTO ANOTHER GEAR AND SAME PROBLEM HAPPENED. SHIFTED INTO ANOTHER GEAR AND IT WAS THE SAME. FINALLY, ONLY GEAR LEFT WAS LOW GEAR. VEHICLE WAS COASTING. HAD NOT DRIVEN OR REVERSED. MANAGED TO GET TO A PARKING LOT. HAD VEHICLE TOWED. WAS INFORMED THATR TRANSMISSION HAD BLOWN AND WAS NOT REPAIRABLE.*AK
NHTSA ODI #884866
Mileage unknown · Jul 27, 2000
Electrical SystemEngine And Engine CoolingEquipment
THE BODY CONTROL MODULE THAT WORKS THE DOOR LOCKS AND WINDOWS. THE CLUTCH ON THE AIR CONDITIONER. REPLACED THAT THEN THE COMPRESSOR WENT OUT. THE RADIO QUIT . ITS HAD A ROAR IN THE REAR END EVER SINCE WE GOT IT. THEY CANNOT FIND THE PROBLEM. THE GAUGES FOR HEAT , SPEED, RPMS,OIL, ETC. GO BACK AND FORTH WHEN YOU START THE E…
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THE BODY CONTROL MODULE THAT WORKS THE DOOR LOCKS AND WINDOWS. THE CLUTCH ON THE AIR CONDITIONER. REPLACED THAT THEN THE COMPRESSOR WENT OUT. THE RADIO QUIT . ITS HAD A ROAR IN THE REAR END EVER SINCE WE GOT IT. THEY CANNOT FIND THE PROBLEM. THE GAUGES FOR HEAT , SPEED, RPMS,OIL, ETC. GO BACK AND FORTH WHEN YOU START THE ENGINE THEN WHEN THEY STOP THEY DON'T READ CORRECTLY. SPEED DOESN'T READ RIGHT. MASTER CYCLINDER WENT OUT 2 TIMES.
NHTSA ODI #726127
Mileage unknown · Apr 9, 2000
Power Train
DIFFICULTY OF TRANSMISSION GOING INTO GEAR. *AK
NHTSA ODI #721231
Mileage unknown · Dec 30, 1999
Power Train
TRACTION CONTROL IS TURNING OFF WHENEVER VEHICLE IS MOVING. TRACTION CONTROL OFF LIGHT DOES NOT COME ON WHEN VEHICLE IS AT IDLE AND STATIONARY. ON OFF SWITCH WILL NOT TURN ON TRACTION CONTROL WHEN IT HAS COME ON BY ITSELF. TO TURN OFF TRACTION CONTROL OFF DASH LIGHT YOU MUST RESTART VEHICLE. IT WILL STAY OFF UNTIL VEHICLE MOVES …
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TRACTION CONTROL IS TURNING OFF WHENEVER VEHICLE IS MOVING. TRACTION CONTROL OFF LIGHT DOES NOT COME ON WHEN VEHICLE IS AT IDLE AND STATIONARY. ON OFF SWITCH WILL NOT TURN ON TRACTION CONTROL WHEN IT HAS COME ON BY ITSELF. TO TURN OFF TRACTION CONTROL OFF DASH LIGHT YOU MUST RESTART VEHICLE. IT WILL STAY OFF UNTIL VEHICLE MOVES APPROXIMATELY 300 TO 500 FEET THEN WILL COME ON AGAIN. *AK
NHTSA ODI #716684
Mileage unknown · Dec 20, 1999
Power TrainService Brakes, Hydraulic
GM TSB DESCRIBES THE EXACT CONDITION AND CURE.GM WOULD NOT HELP WITH REPAIR. THE PROBLEM WAS A DEFECTIVE PART ,THE REPAIR WAS TO INSTALL A PART THAT HAS A DIFFERENT MACHING PROCESS AND HARDER VALVES. *AK
NHTSA ODI #716271