NHTSA owner reports · September 18, 2026 snapshot.
Engine And Engine Cooling complaints
29 reportsClear category filter21,000 miles · Nov 3, 2011
Engine And Engine CoolingFuel System, GasolineVehicle Speed Control
ON THE FIRST INCIDENT, WHEN DRIVING AT 40 MPH STARTED SHAKING LIKE IT WANTED TO STALL AND STOPPED ACCELERATING. THE NEXT DAY WHEN STOPPED AT A LIGHT IT STARTED SHAKING AND THE RPM GAUGE WAS GOING UP AND DOWN. IT DIDN'T HAPPEN AGAIN UNTIL ABOUT A MONTH LATER, WHICH IS WHEN I TOOK IT IN, BUT THE DEALERSHIP COULDN'T REPLICATE THE P…
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ON THE FIRST INCIDENT, WHEN DRIVING AT 40 MPH STARTED SHAKING LIKE IT WANTED TO STALL AND STOPPED ACCELERATING. THE NEXT DAY WHEN STOPPED AT A LIGHT IT STARTED SHAKING AND THE RPM GAUGE WAS GOING UP AND DOWN. IT DIDN'T HAPPEN AGAIN UNTIL ABOUT A MONTH LATER, WHICH IS WHEN I TOOK IT IN, BUT THE DEALERSHIP COULDN'T REPLICATE THE PROBLEM. IT KEPT HAPPENING -- THE CAR WOULD START SHAKING WHILE DRIVING LIKE IT WANTED TO STALL AND WOULD SLOW DOWN. ONCE WHILE DRIVING IT DROPPED THE ACCELERATION TO ABOUT 20 MPH AND WOULD NOT GO ANY FASTER, THEN JUST LOST POWER TO THE ENGINE. I TOOK IT AGAIN FOR ONE WEEK BUT THEY COULDN'T REPLICATE THE PROBLEM. I GOT THE CAR BACK AND IT WAS FINE FOR ABOUT TWO WEEKS BUT NOW IS HAPPENING REGULARLY. SOMETIMES IT JUST SHAKES QUICKLY BUT SOMETHING THE ACCELERATION COMPLETELY DROPS AND THE CAR WILL JUST STOP WHILE I AM DRIVING, WHICH IS SCARY. I'LL TRY TO ACCELERATE AND NOTHING WILL HAPPEN, THEN FINALLY IT WILL GO AGAIN. SOMETIMES I WILL STOP AND THEN THE CAR WILL LURCH FORWARD. THE RPM GAUGE IS ALWAYS MOVING UP AND DOWN. THERE IS NO PATTERN AS TO WHEN IT HAPPENS. I'VE TAKEN THE CAR IN TWO MORE TIMES AND STILL NOTHING. THEY JUST INSTALLED A DATA RECORDER AND I RECORDED FOUR INSTANCES AND GAVE IT BACK; I'M WAITING TO HEAR THE RESULTS. IT'S VERY DANGEROUS, BECAUSE I WILL BE DRIVING IN TRAFFIC AND MY CAR WILL JUST STOP, AND SINCE I AM NOT BRAKING THERE IS NO INDICATION TO THE CAR BEHIND ME. ALSO, NO LIGHTS ARE COMING ON (NO CHECK ENGINE LIGHT, ETC.). I HAD MY OIL CHANGED THE FIRST TIME SINCE I WAS ABOUT DUE BUT THAT MADE NO DIFFERENCE. *TR
NHTSA ODI #10434153
22,000 miles · Oct 5, 2011
Engine And Engine CoolingFuel System, GasolineVehicle Speed Control
I BOUGHT MY 2009 CHEVY AVEO A YEAR AND A HALF AGO. WHEN MY CAR WAS AT 6,000 MILES, I DROVE MY CAR TO SCHOOL AND PARKED IT IN A PARKING GARAGE. WHEN I RETURNED TO MY CAR AT THE END OF THE DAY IT WOULD NOT START. MY CAR WAS TOWED TO A DEALERSHIP AND A FAULTY FUEL PUMP WAS REPLACED. WHEN MY CAR REACHED 16,000 MILES I BEGAN EXPE…
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I BOUGHT MY 2009 CHEVY AVEO A YEAR AND A HALF AGO. WHEN MY CAR WAS AT 6,000 MILES, I DROVE MY CAR TO SCHOOL AND PARKED IT IN A PARKING GARAGE. WHEN I RETURNED TO MY CAR AT THE END OF THE DAY IT WOULD NOT START. MY CAR WAS TOWED TO A DEALERSHIP AND A FAULTY FUEL PUMP WAS REPLACED. WHEN MY CAR REACHED 16,000 MILES I BEGAN EXPERIENCING SHAKING AT STOP LIGHTS AND STOP SIGNS, AND VERY SLOW DELAYED ACCELERATION WHEN STARTING TO DRIVE AFTER STOPPING. THE SHAKING AND DELAYED ACCELERATION WOULD OCCUR RANDOMLY YET WAS VERY LIKELY WHEN MY AIR CONDITIONING WAS ON. I BROUGHT MY CAR TO THE DEALERSHIP YET THEY SAID THE PROBLEM COULD NOT BE REPLICATED. MY CAR IS CURRENTLY AROUND 22,000 MILES. OVER THE LAST WEEK MY CAR HAS BEGUN DECELERATING AND THEN SUDDENLY LUNGING FORWARD WHILE I AM DRIVING. THE DECELERATION AND LUNGING FORWARD IS HAPPENING WHEN I AM DRIVING ON LOCAL ROADS AT ABOUT 30MPH AND WHEN I AM ON A HIGHWAY DRIVING AROUND 70MPH (AND EVERYTHING IN BETWEEN). TODAY, PULLING OUT OF A PARKING LOT, MY CAR WAS VERY DELAYED IN ACCELERATION. WHEN I STOPPED AT A STOP LIGHT, MY CAR BEGAN SHAKING AND THEN SHUT OFF. THIS PROBLEM IS SPORADIC, YET INCREASINGLY WORRISOME AND DANGEROUS. DEALERSHIPS HAVE NOT IDENTIFIED A PROBLEM AND INSIST THERE IS NOTHING THEY CAN DO. *TR
NHTSA ODI #10428878
70,000 miles · Aug 31, 2011
Engine And Engine Cooling
BOUGHT A 2009 CHEVY AVEO LAST YEAR SEPT. 2010 I AM JUST NOW HAVING A PROBLEM WITH IT. YESTERDAY AT THE TRAFFIC LIGHT MY CAR SHOOK AND JERKED. THEN THE ENGINE SERVICE LIGHT FLASHED ALONG WITH THE HOLD LIGHT. I COULDN'T HARDLY MANAGE TO MOVE MY CAR. I ALREADY HAD THE SPARK PLUGS CHECK, WHAT COULD IT BE? *TR
NHTSA ODI #10422758
34,442 miles · Aug 28, 2011
Engine And Engine Cooling
HARMONIC BALANCER WAS WORN AND DAMAGED THE TIMING BELT. UPON INVESTIGATION, THE DAMAGED TIMING BELT, BELT TENSIONER, BOLTS, AND WORN HARMONIC BALANCER HAD TO BE REPLACED. AFTER THIS, WHILE DRIVING HOME, THE CAR MADE A VERY HARD "MISS" TWICE. SOMETHING IN THE ENGINE AND/OR TIMING BELT AREA ARE STILL NOT FUNCTIONING PROPERLY.
NHTSA ODI #10423376
42,000 miles · Apr 18, 2011
Engine And Engine Cooling
TL* THE CONTACT OWNS A 2009 CHEVROLET AVEO. THE CONTACT STATED THAT WHEN DRIVING AT VARIOUS SPEEDS OR SITTING IDLE IN PARK, THE CHECK ENGINE WARNING LIGHT WOULD ILLUMINATE SPORADICALLY. THE VEHICLE WAS TAKEN TO A DEALER YET THEY WERE UNABLE TO DIAGNOSE THE FAILURE. THIS FAILURE WOULD RECUR ON AN INTERMITTENT BASIS. THE MANUFACTU…
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TL* THE CONTACT OWNS A 2009 CHEVROLET AVEO. THE CONTACT STATED THAT WHEN DRIVING AT VARIOUS SPEEDS OR SITTING IDLE IN PARK, THE CHECK ENGINE WARNING LIGHT WOULD ILLUMINATE SPORADICALLY. THE VEHICLE WAS TAKEN TO A DEALER YET THEY WERE UNABLE TO DIAGNOSE THE FAILURE. THIS FAILURE WOULD RECUR ON AN INTERMITTENT BASIS. THE MANUFACTURER WAS THEN CONTACTED AND THEY ADVISED HER THAT THEY WERE ATTEMPTING TO DETERMINE A REPAIR FOR THE KNOWN DEFECT. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 42,000.
NHTSA ODI #10396704
Mileage unknown · Mar 12, 2011
Engine And Engine CoolingSuspensionTires
2009 AVEO HAD 17 MILES ON IT WHEN PURCHASED 2 DAYS LATER CAR STALLED AND DIED OUT IN MIDDLE OF TRAFFIC. CAR WAS IN SHOP FOR ABOUT A WEEK OR TWO FIRST WAS TOLD IT WAS CATALYTIC CONVERTER STOPPED UP THEN WAS TOLD IT WAS SOMETHING WITH THE MOTOR PARTS WAS ORDER AND PROBLEM WAS FIX THEN ABOUT A WEEK LATER BLOWER MOTOR WENT OUT TWIC…
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2009 AVEO HAD 17 MILES ON IT WHEN PURCHASED 2 DAYS LATER CAR STALLED AND DIED OUT IN MIDDLE OF TRAFFIC. CAR WAS IN SHOP FOR ABOUT A WEEK OR TWO FIRST WAS TOLD IT WAS CATALYTIC CONVERTER STOPPED UP THEN WAS TOLD IT WAS SOMETHING WITH THE MOTOR PARTS WAS ORDER AND PROBLEM WAS FIX THEN ABOUT A WEEK LATER BLOWER MOTOR WENT OUT TWICE DEALERSHIP DIDN'T KNOW WHAT WAS WRONG WITH IT SO THEY REPLACED BLOWER MOTOR TWICE AND CIGARETTE LIGHT BLEW OUT FUSES TWICE AS WELL. CAR HAS BLOWN OUT 3 HEADLIGHT BULBS WAS TOLD THERE IS A SHORT IN THE SWITCH OR SOMEWHERE BUT DEALER DON'T WANNA LOOK FOR THE PROBLEM, MOTOR IS TAPPING LOUDLY LIKE ITS NOT GETTING OIL TO THE LIFTER WAS TOLD TWO TIMES BY TWO DIFFERENT DEALERSHIPS THAT THE MOTOR IS SUPPOSE TO TAP BUT WHEN I PURCHASED THE VEHICLE THE MOTOR WAS QUIET I TOOK IT TO A MECHANIC AND WAS TOLD IT WAS THE LIFTERS AND THERE'S A PROBLEM WITH THE MOTOR ALSO OIL IS ALL OVER THE TOP OF THE MOTOR AROUND THE CAP WAS TOLD BY THE DEALER THIS IS A NORMAL PROBLEM THEY ARE HAVING TO MANY EXCUSES TO NOT FIX THE VEHICLE. THERE IS ANOTHER NOISE THAT STARTS WHEN YOU FIRST START UP THE VEHICLE AND DEALERSHIP IS DEAF EAR TO THE TAPPING NOISE AND THIS NOISE AS WELL THEY KEPT THE CAR FOR 3 DAYS AND COULDN'T DUPLICATE THE NOISE BUT THE VERY NEXT DAY AFTER I START UP THE VEHICLES YOU HEAR THE NOISE PLAIN AND CLEAR, RATTLING NOISE DEALERSHIP SERVICE MANAGER HEARD THE NOISE FIRST HAND BEFORE AND HE KNOWS THERE'S A ELECTRICAL SHORT HE SAID SO HIMSELF. TIRES ON FRONT AND BACK ARE WEARING UNEVENLY DEALERSHIP SAYS THE ALIGNMENT ON THE VEHICLE IS STRAIGHT HOW IS THAT WHEN IM GOING ON MY THIRD SET OF TIRES NOW AND ITS 2011. DEALERSHIP WHERE PURCHASED VEHICLE FROM SAYS ITS NORMAL TO BE ON 3RD SET OF TIRES ANOTHER DEALERSHIP SAYS ITS NOT IM WORKING WITH THE GM COMPANY TO SEE WHAT THE OUTCOME WILL BE ON THIS VEHICLE. *TR
NHTSA ODI #10389924
Mileage unknown · Mar 12, 2011
Engine And Engine CoolingSuspensionTires
2009 AVEO HAD 17 MILES ON IT WHEN PURCHASED 2 DAYS LATER CAR STALLED AND DIED OUT IN MIDDLE OF TRAFFIC. CAR WAS IN SHOP FOR ABOUT A WEEK OR TWO FIRST WAS TOLD IT WAS CATALYTIC CONVERTER STOPPED UP THEN WAS TOLD IT WAS SOMETHING WITH THE MOTOR PARTS WAS ORDER AND PROBLEM WAS FIX THEN ABOUT A WEEK LATER BLOWER MOTOR WENT TWICE DE…
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2009 AVEO HAD 17 MILES ON IT WHEN PURCHASED 2 DAYS LATER CAR STALLED AND DIED OUT IN MIDDLE OF TRAFFIC. CAR WAS IN SHOP FOR ABOUT A WEEK OR TWO FIRST WAS TOLD IT WAS CATALYTIC CONVERTER STOPPED UP THEN WAS TOLD IT WAS SOMETHING WITH THE MOTOR PARTS WAS ORDER AND PROBLEM WAS FIX THEN ABOUT A WEEK LATER BLOWER MOTOR WENT TWICE DEALERSHIP DIDN'T KNOW WHAT WAS WRONG WITH IT SO THEY REPLACED BLOWER MOTOR PROBLEM FIXED UNTIL NOW SAME PROBLEM, HAS BLOWN OUT 3 HEADLIGHT BULBS WAS TOLD THERE IS A SHORT IN THE SWITCH OR SOMEWHERE BUT DEALER DON'T WANNA LOOK FOR THE PROBLEM, MOTOR IS TAPPING LOUDLY LIKE ITS NOT GETTING OIL TO THE LIFTER WAS TOLD THREE TIMES BY TWO DIFFERENT DEALERSHIPS THAT THE MOTOR IS SUPPOSE TO TAP BUT WHEN I PURCHASED THE VEHICLE THE MOTOR WAS QUIET I TOOK IT TO A MECHANIC AND WAS TOLD IT WAS THE LIFTER AND THERE'S A PROBLEM WITH THE MOTOR ALSO OIL IS ALL OVER THE TOP PF THE MOTOR AROUND THE CAP WAS TOLD BY THE DEALER THIS IS A NORMAL PROBLEM THERESHOULD BE NO OIL NO WHERE ON TOP OF THE MOTOR THE MORE OIL ON TOP THE LESS OIL IN THE MOTOR WHICH WILL MAKE THE MOTOR BLOW UP THESE ARE SUPPOSE TO BE CERTIFIED MECHANICS AND THEY ARE HAVING TO MANY EXCUSES TO NOT FIX THE VEHICLE. THERE IS ANOTHER NOISE THAT STARTS WHEN YOU FIRST START UP THE VEHICLE AND DEALERSHIP IS DEAF EAR TO THE TAPPING NOISE AND THIS NOISE AS WELL THEY KEPT THE CAR FOR 3 DAYS AND COULDN'T DUPLICATE THE NOISE BUT THE VERY NEXT DAY AFTER I START UP THE VEHICLES YOU HEAR THE NOISE PLAIN AND CLEAR, TIRES ON FRONT AND BACK ARE WEARING UNEVENLY DEALERSHIP WANNA SAYS THE ALIGNMENT ON THE VEHICLE IS STRAIGHT HOW IS THAT WHEN IM GOING ON MY THIRD SET OF TIRES NOW AND ITS 2011. IM WORKING WITH THE GM COMPANY TO SEE WHAT THE OUTCOME WILL BE ON THIS VEHICLE. DON'T FEEL COMFORTABLE TAKING THIS CAR OUTTA TOWN AT ALL WITH THE MOTOR TAPPING LOUD AND ITS LOOSING OIL. *TR
NHTSA ODI #10389921
38,250 miles · Jan 4, 2011
Engine And Engine CoolingVehicle Speed Control
MY 2009 CHEVROLET HAS HAD SERIOUS STALLING OR NON RESPONSIVE ACCELERATION FOR 6 MONTHS NOW. ON A REGULAR BASIS THE CAR WILL LOSE POWER TO THE ENGINE; WHEN STEPPING ON THE ACCELERATOR PEDAL. THE CAR ACTS LIKE THERE IS NO SIGNALS FROM THE ACCELERATOR PEDAL TO THE THROTTLE ASSEMBLY. THERE ARE DAYS WHEN IT DOES NOTHING AT ALL. THERE…
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MY 2009 CHEVROLET HAS HAD SERIOUS STALLING OR NON RESPONSIVE ACCELERATION FOR 6 MONTHS NOW. ON A REGULAR BASIS THE CAR WILL LOSE POWER TO THE ENGINE; WHEN STEPPING ON THE ACCELERATOR PEDAL. THE CAR ACTS LIKE THERE IS NO SIGNALS FROM THE ACCELERATOR PEDAL TO THE THROTTLE ASSEMBLY. THERE ARE DAYS WHEN IT DOES NOTHING AT ALL. THERE ARE TIMES WHEN IT HAPPENS THEN THE ENGINE WILL JUST SEEM TO RETURN TO NORMAL, THEN OUT OF THE BLUE THE ENGINE WILL LOSE POWER AGAIN. THERE ARE NEVER ANY WARNINGS OR CHECK ENGINE LIGHTS. NONE HAVE EVER COME ON. WE HAVE TAKEN THE CAR TO 3 DIFFERENT CHEVROLET DEALERSHIPS; AND TO ONE INDEPENDENT GARAGE; WHO DID HAVE THE PROBLEM HAPPEN ONCE WHILE I WAS DRIVING WITH THE OWNER, BUT THE OTC GENISIS DEVICE COULD NOT IDENTIFY WHAT WAS HAPPENING, IT JUST RECORDED THE HISTORY OF THE EVENT. NONE OF THE CHEVROLET DEALERS COULD GET IT TO DUPLICATE OR FIND ANY CODES IN THE 10 DAYS THEY HAD THE CAR. THE PROBLEM SEEMS TO BE GETTING WORSE. I HAVE BEEN TAKING VIDEOS WITH MY HTC DROID WHEN THE CAR IS HAVING ITS PROBLEM (FOR ALL THE GOOD THAT WILL DO). IT IS LIKE KEEPING A JOURNAL. I SHOW THE RPM SPIKES AND DROPS; THE SUDDEN DECELERATION AND THE ?NO RESPONSE WHEN THE GAS PEDDLE IS PUSHED. THE PROBLEM HAS OCCURRED AT ALL SPEEDS, INCLUDING WHEN ON THE FREEWAY. WE HAVE ALREADY SPENT OVER $600 ON VARIOUS (SO CALLED FIXES); INCLUDING A COMPLETE FUEL SYSTEM CLEANING (INCLUDING THE THROTTLE BODY CLEANING) NONE HAVE EVER HELPED. I WAS TOLD BY A CHEVROLET DEALER IT WAS A BAD O2 SENSOR (BUT NO CHECK ENGINE LIGHT HAD EVER CAME ON). O2 SENSORS ALWAYS CAUSE A CHECK ENGINE LIGHT TO COME ON. I THINK IT MAY BE THE ENTIRE ECU COMPUTER; BUT NO DEALER WANTS TO ADMIT THAT. I WAS TOLD BY THE DEALER TODAY 01/04/2011; THERE IS NOTHING MORE THEY WILL DO; BECAUSE WE HAVE TOO MUCH NEGITIVE EQUITY. THEY WILL NOT DO A BUY BACK. THEY HAVE WASHED THEIR HANDS OF THE ISSUE. TO BAD THERE IS NO USED CAR LEMON LAW. 4 REPAIR ATTEMPTS AND THE PROBLEM IS EVEN WORSE. *TR
NHTSA ODI #10374694
5,000 miles · Dec 27, 2010
Engine And Engine Cooling
I PURCHASED THIS CAR SEPTEMBER 2009 AND HAVE DRIVE AROUND 5,000MILES ONLY. THE ENGINE IS STALLED EVERYDAY. HOWEVER, THE DEALER SAID THERE IS NO ISSUE. 2 MONTHS AGO, THIS PROBLEM HAPPENED, THE DEALER CHANGED A BATTERY. SINCE DECEMBER 11, 2010, AGAIN THE ENGINE HAS BEEN STOPPED MANY TIMES WHILE I WAIT FOR THE TRAFFIC SIGNAL.…
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I PURCHASED THIS CAR SEPTEMBER 2009 AND HAVE DRIVE AROUND 5,000MILES ONLY. THE ENGINE IS STALLED EVERYDAY. HOWEVER, THE DEALER SAID THERE IS NO ISSUE. 2 MONTHS AGO, THIS PROBLEM HAPPENED, THE DEALER CHANGED A BATTERY. SINCE DECEMBER 11, 2010, AGAIN THE ENGINE HAS BEEN STOPPED MANY TIMES WHILE I WAIT FOR THE TRAFFIC SIGNAL. THIS MORNING (12/27), I WAS ALMOST IN THE ACCIDENT. THE CAR WAS STOPPED ON THE HILL AND WENT BACKWARD. FORTUNATELY I'M FINE NOW, BUT I WAS SCARED. DEBEMBER 18, I VISITED THE DEALER, THEY SAID MY CAR HAS NO PROBLEM. *TR
NHTSA ODI #10372543
15,000 miles · Dec 20, 2010
Electrical SystemEngine And Engine CoolingUnknown Or Other
VEHICLE LOST POWER TO THE ENGINE. STEPPING ON THE GAS PEDAL DID NOTHING. THE CAR LURCHED AND DECELERATED QUICKLY. POWER WAS SUDDENLY RESTORED TO ENGINE CAUSING THE CAR TO SPEED UP QUICKLY, THEN ENGINE LOST POWER AGAIN. CAR CAME TO A STOP, ENGINE SPUTTERED AND THEN DIED. NO WARNING LIGHTS CAME ON. RESTARTED ENGINE, CAR DROVE AS N…
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VEHICLE LOST POWER TO THE ENGINE. STEPPING ON THE GAS PEDAL DID NOTHING. THE CAR LURCHED AND DECELERATED QUICKLY. POWER WAS SUDDENLY RESTORED TO ENGINE CAUSING THE CAR TO SPEED UP QUICKLY, THEN ENGINE LOST POWER AGAIN. CAR CAME TO A STOP, ENGINE SPUTTERED AND THEN DIED. NO WARNING LIGHTS CAME ON. RESTARTED ENGINE, CAR DROVE AS NORMAL. TOOK TO DEALERSHIP, THEY COULD FIND NOTHING WRONG. PROBLEM HAS CONTINUED INTERMITTENTLY FOR ALMOST A YEAR. HAVE TAKEN THE CAR TO THE DEALERSHIP MULTIPLE TIMES, THEY CAN FIND NOTHING WRONG. THE SUDDEN DECELERATION HAS OCCURRED AT ALL SPEEDS, INCLUDING ON THE FREEWAY ALMOST CAUSING A COLLISION. THE CAR WENT FROM 70MPH TO 40MPH IN ONE MINUTE, SPUTTERED FOR A WHILE, AND THEN CAME BACK TO DRIVE NORMALLY AFTER SEVERAL MINUTES. THE PROBLEM HAPPENS WITHIN THE FIRST TEN MINUTES OF DRIVING. IT HAS HAPPENED TWICE IN THE SAME DAY AFTER THE CAR SAT FOR 8 HOURS. THE PROBLEM HAS NOT OCCURRED FOR PERIODS AS LONG AS TWO WEEKS BUT THEN COMES BACK. THE MOST EXTREME OCCURRENCES HAVE BEEN ON SIDE STREETS WHERE TRAFFIC WAS NOT A PROBLEM, BUT IF ANOTHER CAR HAD BEEN FOLLOWING CLOSELY A REAR-END COLLISION WOULD HAVE BEEN CERTAIN. MY SPOUSE HAS DRIVEN THE CAR AND EXPERIENCED THE SAME PROBLEM.
NHTSA ODI #10372755