NHTSA owner reports · September 18, 2026 snapshot.
Vehicle Speed Control complaints
16 reportsClear category filter59,856 miles · Dec 17, 2014
Power TrainSteeringVehicle Speed Control
CAR WENT TO 500 RPM THEN DROPPED TO 300 RPM THEN DOWN TO 100 RPM; I IMMEDIATELY PULLED OFF THE MAIN ROAD TO A SIDE STREET. LOST POWER STEERING AND WAS UNABLE TO RESTART CAR AGAIN. CAR TAKEN TO LOCAL MECHANIC AFTER RUNNING DIAGNOSTIC TESTS ON THE VEHICLE, DETERMINED THE CAR WAS SAVABLE AND THAT THE TIMING BELT BROKE CAUSING TH…
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CAR WENT TO 500 RPM THEN DROPPED TO 300 RPM THEN DOWN TO 100 RPM; I IMMEDIATELY PULLED OFF THE MAIN ROAD TO A SIDE STREET. LOST POWER STEERING AND WAS UNABLE TO RESTART CAR AGAIN. CAR TAKEN TO LOCAL MECHANIC AFTER RUNNING DIAGNOSTIC TESTS ON THE VEHICLE, DETERMINED THE CAR WAS SAVABLE AND THAT THE TIMING BELT BROKE CAUSING THREE SETS OF VALVES TO BEND. THE TIMING BELT KIT, HEAD GASKET, WATER PUMP AND VALVE KITS NEED TO BE CHANGED. THE ENGINE NEEDS TO BE RECONDITIONED; NEW ENGINE OIL NEEDS TO BE PUT INTO THE CAR ALONG WITH FLUSHING THE FLUIDS. SINCE THIS IS A MASSIVE REWORK OF THE VEHICLE, IT WILL BE OUT OF SERVICE ONE WEEK AND THE REPAIR COST IS $2,100.00. MILEAGE ON THE CAR IS UNDER 60,000, I AM ORIGINAL OWNER. GENERAL MOTORS - CHEVROLET DIVISION CONTACTED BECAUSE I DID NOT TAKE TO A GM DEALER FOR SERVICE (UNABLE TO AFFORD) AND BECAUSE THEY ADVISED ME THIS IS SO FAR OUT OF THE WARRANTY, THEY WOULD NOT OFFER ANY ASSISTANCE. HOWEVER, I DID LOOK UP A SERVICE BULLETIN AND IT DID SAY THE PARTS ARE UNDER WARRANTY. *TR
NHTSA ODI #10664849
110,000 miles · Jul 25, 2014
Service BrakesVehicle Speed ControlCrash
FOR THE LAST TWO YEARS AT RANDOM TIMES WHEN I START MY CAR, THE BRAKES WILL NOT WORK. THEY CAN NOT EVEN BE PRESSED DOWN. WHENEVER THIS HAPPENS, A CORRESPONDING WEIRD REVVING THAT CAUSES THE CAR TO LUNGE FORWARD IN SUCH A WAY THAT IT DOESN'T USUALLY ALSO HAPPENS. I PARALLEL PARK ON A STREET DAILY, AND ONE MORNING WHEN THIS HAPPEN…
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FOR THE LAST TWO YEARS AT RANDOM TIMES WHEN I START MY CAR, THE BRAKES WILL NOT WORK. THEY CAN NOT EVEN BE PRESSED DOWN. WHENEVER THIS HAPPENS, A CORRESPONDING WEIRD REVVING THAT CAUSES THE CAR TO LUNGE FORWARD IN SUCH A WAY THAT IT DOESN'T USUALLY ALSO HAPPENS. I PARALLEL PARK ON A STREET DAILY, AND ONE MORNING WHEN THIS HAPPENED ENDED UP HITTING THE CAR IN FRONT OF ME. USUALLY THE PROBLEM STOPS HAPPENING AFTER DRIVING FOR ABOUT 1/2 A MILE, BUT IT IS PRETTY SCARY TRYING TO DRIVE WITHOUT BRAKES TO GET TO THAT 1/2 MILE MARK. ESPECIALLY SINCE WHENEVER THE BRAKES WON'T WORK THE CAR ALSO SEEMS TO ACCELERATE ON ITS OWN. I HAVE TRIED TO GET THIS FIXED MULTIPLE TIMES BUT IT ALWAYS STOPS HAPPENING BY THE TIME I GET TO THE MECHANIC AND I'VE LEFT MY CAR OVERNIGHT AT A MECHANIC TWICE AND THEY HAVEN'T BEEN ABLE TO RECREATE THE ISSUE. I CAN'T PART WITH MY CAR FOR AN ENTIRE WEEK SO THAT THIS PROBLEM CAN BE DIAGNOSED. *TR
NHTSA ODI #10616217
140,000 miles · May 21, 2014
EngineVehicle Speed Control
TL* THE CONTACT OWNS A 2005 CHEVROLET AVEO. THE CONTACT STATED THAT WHEN ATTEMPTING TO ACCELERATE FROM A STOP, THE ENGINE RPMS ABNORMALLY INCREASED WITHOUT WARNING. THE VEHICLE WAS NOT TAKEN TO DEALER FOR A DIAGNOSTIC TESTING. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILUR…
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TL* THE CONTACT OWNS A 2005 CHEVROLET AVEO. THE CONTACT STATED THAT WHEN ATTEMPTING TO ACCELERATE FROM A STOP, THE ENGINE RPMS ABNORMALLY INCREASED WITHOUT WARNING. THE VEHICLE WAS NOT TAKEN TO DEALER FOR A DIAGNOSTIC TESTING. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 70,000. THE CONSUMER STATED THE ACCELERATOR PEDAL BECAME STUCK. SHE TRIED TO RELEASE IT WITH HER HAND, BUT IT DIDN'T MOVE. UPDATED 11/18/14
NHTSA ODI #10593122
27,000 miles · Jan 16, 2014
EnginePower TrainVehicle Speed Control
HI I BOUGH A 2005 CHEVY AVEO WITH 9,000.00 MILE I HAD NO PROBLEM. UNTIL ONE DAY THE CAR COMPLETELY STOP AND WONT TURN ON. IT HAD ALMOST 23,000.00 WHEN IT HAPPEN. LUCKILY FOR ME IT STOP IN FRONT OF A MECHANIC SHOP. THE SHOP CHECK THE CAR AND SAID THE ENGINE IS BAD. I BOUGH A USED LOW MILEAGE ENGINE REPLACE IT AND IT TURN ON A…
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HI I BOUGH A 2005 CHEVY AVEO WITH 9,000.00 MILE I HAD NO PROBLEM. UNTIL ONE DAY THE CAR COMPLETELY STOP AND WONT TURN ON. IT HAD ALMOST 23,000.00 WHEN IT HAPPEN. LUCKILY FOR ME IT STOP IN FRONT OF A MECHANIC SHOP. THE SHOP CHECK THE CAR AND SAID THE ENGINE IS BAD. I BOUGH A USED LOW MILEAGE ENGINE REPLACE IT AND IT TURN ON AND DRIVE EXCEPT FOR THE SHIFTING. IT DIDN'T SHIFT TO FOURTH GEAR AND ALSO TURN OFF WHILE DRIVING IT. THEN I WAS TOLD THE TRANSMISSION IS BAD. I CHANGE THE TRANSMISSION WITH LOW MILEAGE AND STILL I HAVE THE SAME PROBLEM I HAD WARRANTY CHANGE IT AGAIN AND STILL IT DOESN'T SHIFT FOURTH GEAR AND IT STILL TURNS OFF. I CHANGE THE COMPUTER, I DID A TUNE UP, ENGINE OIL CHANGE, I'VE CHANGE THE COILS AND SOME SEAL IN TOP OF THE ENGINE, AND I STILL HAVE THE SAME PROBLEM. THE CAR BEEN SITTING SINCE THEN I WANTED TO WAIT TO HAVE MONEY TO FIX IT, THINKING THAT MAYBE THE SHOP WAS LYING TO ME BY ASKING ME TO REPLACE ALL THIS THINGS. I SAVE I FEW DOLLARS AND WANTED TO GET IT FIX I HAD ANOTHER SHOP LOOKED AT IT AND IT SEEMS THAT IS THE SAME DIAGNOSTIC WAS DETECTED. I FRIEND TOLD ME TO GOOGLE IT AND I FOUND OUT THAT AM NOT THE ONLY ONE WITH THAT PROBLEM. I JUST WISH I GOOGLE IT BEFORE I SPEND ALL THE MONEY ON IT. LESSON LEARN I HOPE THEY DO A RECALL BECAUSE I TOO WAS AFRAID TO DRIVE AND GET IN TO AN ACCIDENT BECAUSE IT TURN OFF ON ME . *TR
NHTSA ODI #10560249
65,205 miles · Jan 7, 2014
EngineVehicle Speed Control
MY WIFE WAS DRIVING OUR CHEVY AVEO 2005 ON A MAJOR 4 LANE HIGHWAY DURING THE MORNING RUSH HOUR. SHE IS DOING ABOUT 60MPH IN THE INNER LEFT LANE ON AN ICY TUESDAY MORNING COMMUTE.THEN SHE LOSES ALL POWER AND ACCELERATION, EVERY LIGHT IN THE CAR COMES ON AND SHE REALIZES THERE IS A PROBLEM. SHE IS MID WAY UP A HILL AND HAS TO GET …
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MY WIFE WAS DRIVING OUR CHEVY AVEO 2005 ON A MAJOR 4 LANE HIGHWAY DURING THE MORNING RUSH HOUR. SHE IS DOING ABOUT 60MPH IN THE INNER LEFT LANE ON AN ICY TUESDAY MORNING COMMUTE.THEN SHE LOSES ALL POWER AND ACCELERATION, EVERY LIGHT IN THE CAR COMES ON AND SHE REALIZES THERE IS A PROBLEM. SHE IS MID WAY UP A HILL AND HAS TO GET OVER. THERE IS AN ON RAMP TO HER RIGHT AND MORE TRAFFIC SO SHE HAD TO GO INTO THE LEFT BERM. BY THIS TIME SHE HAS PEAKED THE TOP OF THE HILL AND IS ON THE FLAT MESA. THERE IS VERY LITTLE ROOM TO MOVE OVER AND SHE IS OVER AS FAR AS POSSIBLE. STATE AND LOCAL TRAFFIC ENFORCEMENT COME TO HER AIDE AND ALLOW HER TO WAIT FOR ME AND A TOW TRUCK TO GET THE VEHICLE MOVED. NEARLY A DOZEN CARS ALMOST HIT THEM AFTER I ARRIVED ON THE SCENE BEFORE THE DETERMINED THAT IT WAS UNSAFE FOR US TO WAIT WITH THE VEHICLE. THEY TAGGED THE CAR AND WE HAD IT TOWED. IT TURNS OUT THAT THE IDLER PULLEY HAS SNAPPED AND IT IS A VERY COMMON PROBLEM WITH AVEOS. A VERY COMMON PROBLEM THAT PUT MY WIFE, TWO OFFICERS AND I IN HARMS WAY. LET ALONE THAT RECALLING THE SMALL PART WOULD HAVE SAVED EVERYONE A $1900-2500 REPAIR JOB. I UNDERSTAND THAT MANY CONSIDER THIS STYLE CAR DISPOSABLE BUT I SAY IT AS AN AFFORDABLE ENERGY EFFICIENT COMMUTER VEHICLE. HOWEVER THESE FEATURES ARE NOT WORTH HUMAN LIFE... *TR
NHTSA ODI #10558959
91,392 miles · Jun 12, 2013
EngineVehicle Speed Control
I WAS DRIVING DOWN THE HIGHWAY AT 55 MPH AND THE CAR STARTED TO LOSE ACCELERATION. I PRESSED ON THE GAS AND NOTHING HAPPENED. I STARTED SLOWING VERY QUICKLY AND I PULLED OFF TO THE SIDE WHERE EVENTUALLY THE CAR COMPLETELY SHUT DOWN ALL ON ITS OWN AND THE BATTERY LIGHT CAME ON THE DASH. I TURNED THE IGNITION TO OFF AND RESTAR…
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I WAS DRIVING DOWN THE HIGHWAY AT 55 MPH AND THE CAR STARTED TO LOSE ACCELERATION. I PRESSED ON THE GAS AND NOTHING HAPPENED. I STARTED SLOWING VERY QUICKLY AND I PULLED OFF TO THE SIDE WHERE EVENTUALLY THE CAR COMPLETELY SHUT DOWN ALL ON ITS OWN AND THE BATTERY LIGHT CAME ON THE DASH. I TURNED THE IGNITION TO OFF AND RESTARTED THE CAR. I WAS ABLE TO KEEP GOING WITHOUT ANOTHER INCIDENT. THE NEXT DAY ON MY WAY HOME FROM WORK THE SAME THING HAPPENED AGAIN. MY CHECK ENGINE LIGHT WAS ON AT THE TIME FOR WHICH I JUST HAD MY FUEL CAP REPLACED BECAUSE IT WAS NOT LOCKING AT ALL. AFTER A FEW DAYS MY CHECK ENGINE LIGHT HAS GONE OFF. I AM SERIOUSLY CONCERNED ABOUT THIS AS THIS CAR IS MY MAIN MEANS OF TRANSPORTATION BACK AND FORTH TO WORK WHICH IS AN HOUR DRIVE FOR ME. I JUST RECENTLY PURCHASED THIS CAR (WITHIN THE LAST 3 WEEKS) FROM THE FORD DEALERSHIP IN TILLAMOOK OR AND OF COURSE THEY DID NOT REPORT ANY OF THESE ISSUES. *TR
NHTSA ODI #10519539
20,000 miles · Jul 11, 2012
Seat BeltsVehicle Speed Control
TL* THE CONTACT OWNS A 2008 CHEVROLET AVEO. THE CONTACT STATED THAT THE ACCELERATOR PEDAL FAILED AND WOULD DEPRESS TO THE FLOOR WHENEVER THE VEHICLE WAS DRIVEN DOWNHILL. THE CONTACT WAS ABLE TO SLOW THE VEHICLE DOWN BY APPLYING THE BRAKES. THE VEHICLE WAS TAKEN TO THE DEALER FOR INSPECTION AND THE FAILURE WAS UNKNOWN. THE CONTAC…
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TL* THE CONTACT OWNS A 2008 CHEVROLET AVEO. THE CONTACT STATED THAT THE ACCELERATOR PEDAL FAILED AND WOULD DEPRESS TO THE FLOOR WHENEVER THE VEHICLE WAS DRIVEN DOWNHILL. THE CONTACT WAS ABLE TO SLOW THE VEHICLE DOWN BY APPLYING THE BRAKES. THE VEHICLE WAS TAKEN TO THE DEALER FOR INSPECTION AND THE FAILURE WAS UNKNOWN. THE CONTACT ALSO STATED THAT THE SEAT BELT MATERIAL BEGAN TO GET FUZZY AND WOULD GET CAUGHT IN THE RETRACTOR. THE DEALER STATED THAT THE SEAT BELT NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 20,000.
NHTSA ODI #10465217
98,200 miles · Mar 16, 2010
Vehicle Speed Control
2005 CHEVY AVEO I BELIEVE MY ACCELERATOR BECAME "STUCK" WHILE DRIVING ON THE INTERSTATE - CANNOT CONFIRM BUT WHEN I WAS EXITING, IT WAS EXTREMELY DIFFICULT TO STOP AND WAS REDLINING WHILE AT A STOP. I TURNED THE CORNER AND THE CAR ACCELERATED UP TO 50 WITH NO FOOT ON THE ACCELERATOR NOR ON THE BRAKE. (50 WAS AS I WOULD "LE…
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2005 CHEVY AVEO I BELIEVE MY ACCELERATOR BECAME "STUCK" WHILE DRIVING ON THE INTERSTATE - CANNOT CONFIRM BUT WHEN I WAS EXITING, IT WAS EXTREMELY DIFFICULT TO STOP AND WAS REDLINING WHILE AT A STOP. I TURNED THE CORNER AND THE CAR ACCELERATED UP TO 50 WITH NO FOOT ON THE ACCELERATOR NOR ON THE BRAKE. (50 WAS AS I WOULD "LET IT" GO). I WAS ABLE TO MAKE IT HOME, BUT REDLINED AGAIN WHEN I PUT IT IN PARK. WAS TO TAKE IT IN, REDLINED IMMEDIATELY AT IGNITION. MY DAD SLAMMED ON THE ACCELERATOR PEDAL AND IT STOPPED. HE DROVE IT TO THE MECHANIC, AND SAID IT DROVE "FINE." THE MECHANIC WAS UNABLE TO RECREATE THE SCENARIO AND SAID THE COMPUTER DID NOT REGISTER A PROBLEM AND THEREFORE THEY ARE UNABLE TO FIX ANYTHING UNTIL IT HAPPENS AGAIN OR GETS WORSE. DROVE THE CAR ON SHORT DISTANCES AGAIN FOR LESS THAN A WEEK. AT THAT TIME, THE BATTERY LIGHT CAME ON AND STEERING WAS HORRIBLE - (POWER STEERING OUT?) MADE IT LESS THAN 10 MILES HOME, WHEN THE CAR DIED. WOULD NOT TURN ON, MADE CLICKING NOISE. TRIED CHARGING THE BATTERY, WAS ABLE TO MAKE IT TO THE MECHANIC AGAIN...WHERE THEY SAID A BELT HAD FAILED. IT'S THE BELT THAT AFFECTED THE ALTERNATOR'S ABILITY TO CHARGE THE BATTERY AND THE POWER STEERING. THERE IS ALSO A TRANSISTOR THAT WENT BAD. RELATIVELY CHEAP TO FIX, BUT I HAD MY 1 YEAR OLD SON IN THE CAR WHEN THE CAR WAS ACCELERATING ON IT'S OWN. NOT SAFE! OTHER THAN THAT, I HAVE NOT HAD A SINGLE PROBLEM WITH MY AVEO. *TR
NHTSA ODI #10320139
4,029 miles · Mar 11, 2010
Vehicle Speed ControlCrash
TL* THE CONTACT OWNED A 2005 CHEVROLET AVEO. WHILE PULLING INTO A PARKING SPACE SHE NOTICED THERE WAS A SUDDEN INCREASE IN ENGINE RPMS. THE ENGINE ROARED LOUDLY AND IMMEDIATELY, THE VEHICLE ABNORMALLY ACCELERATED AT A RAPID RATE OF SPEED, CRASHING FRONT END INTO A VEHICLE TO HER RIGHT. THE VEHICLE BOUNCED BACK AT THE IMPACT …
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TL* THE CONTACT OWNED A 2005 CHEVROLET AVEO. WHILE PULLING INTO A PARKING SPACE SHE NOTICED THERE WAS A SUDDEN INCREASE IN ENGINE RPMS. THE ENGINE ROARED LOUDLY AND IMMEDIATELY, THE VEHICLE ABNORMALLY ACCELERATED AT A RAPID RATE OF SPEED, CRASHING FRONT END INTO A VEHICLE TO HER RIGHT. THE VEHICLE BOUNCED BACK AT THE IMPACT AND SWERVED TO THE LEFT, CRASHING INTO A JEEP. THE VEHICLE DID NOT STOP DESPITE THE CONTACTS SEVERAL ATTEMPTS TO DEPRESS THE BRAKE PEDAL. THE BRAKES WOULD NOT RESPOND AND THE CONTACT WAS THRUST BACK INTO HER SEAT. SHE CONTINUED TO DEPRESS THE BRAKES UNTIL FINALLY THE VEHICLE SLOWLY COASTED TO A STOP. THERE WERE NO INJURIES, HOWEVER THE VEHICLE WAS DECLARED AS DESTROYED BY HER INSURANCE COMPANY. THE FAILURE MILEAGE WAS APPROXIMATELY 4,029. UPDATED 4/30/10 *CN UPDATED 09/16/10
NHTSA ODI #10318931
54,000 miles · Feb 17, 2010
Vehicle Speed ControlCrashInjury
TL*THE CONTACT OWNS A 2005 CHEVROLET AVEO. THE CONTACT STATED THAT AS SHE WAS DRIVING 5 MPH INTO A PARKING SPACE THE VEHICLE ACCELERATED AND CRASHED INTO A FENCE, A DRIVEWAY AND THEN STOPPED ON A PORCH. NO ONE WAS INJURED. THE VEHICLE WAS DESTROYED. A POLICE REPORT WAS AVAILABLE IF NEEDED. THE MANUFACTURER WAS NOT NOTIFIED OF TH…
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TL*THE CONTACT OWNS A 2005 CHEVROLET AVEO. THE CONTACT STATED THAT AS SHE WAS DRIVING 5 MPH INTO A PARKING SPACE THE VEHICLE ACCELERATED AND CRASHED INTO A FENCE, A DRIVEWAY AND THEN STOPPED ON A PORCH. NO ONE WAS INJURED. THE VEHICLE WAS DESTROYED. A POLICE REPORT WAS AVAILABLE IF NEEDED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 54,000.
NHTSA ODI #10311259
NHTSA investigations
2EA08005 · Stuck Throttle Valve
Opened Feb 14, 2008 · Closed Oct 14, 2008
Status: closed (inferred from source dates) · Engine And Engine Cooling:exhaust System:emission Control:crankcase (pcv); Vehicle Speed Control
TO DATE, THE OFFICE OF DEFECTS INVESTIGATION (ODI) IS AWARE OF 29 NON-DUPLICATIVE COMPLAINTS/FIELD REPORTS AND 52 WARRANTY CLAIMS RELATED TO THE ALLEGED DEFECT AFFECTING 69 UNIQUE SUBJECT VEHICLES.BECAUSE THE ALLEGED DEFECT CONDITION IS MOST LIKELY TO OCCUR DURING WINTER MONTHS WHEN AMBIENT TEMPERATURES ARE BELOW FREEZING, ODI UPGRADED THIS INVESTIGATION TO AN ENGINEERING ANALYSIS ON FEBRUARY 14, 2008 SO THAT IT COULD CONTINUE TO MONITOR THE FIELD EXPERIENCE DURING THE 2007/2008 WINTER SEASON.BY LETTER DATED MAY 22, 2008, GENERAL MOTORS CORP. (GM) SUPPLEMENTED ITS PREVIOUS INFORMATION REQUEST RESPONSE WITH FIELD DATA RECEIVED BY GM THROUGH MAY 1, 2008.ACCORDING TO GM, WHEN MOISTURE FREEZES IN THE POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM AND/OR THE ENGINE AIR INTAKE TRACT IT IS MOST OFTEN OBSERVED AS A HARD TO START/NO START CONDITION, THROTTLE STUCK CLOSED, ROUGH RUNNING ENGINE, STALLING AT IDLE, OR OIL LEAKAGE.OF THE 29 COMPLAINTS RELATED TO STUCK THROTTLE, ODI IDENTIFIED 5 REPORTS THAT ALLEGE UNWANTED ACCELERATION, 13 REPORTS DESCRIBE AN APPARENT HIGH-IDLE CONDITION AT START UP OR WHEN SLOWING THE VEHICLE TO A STOP WITHOUT ANY ALLEGATION OF UNWANTED ACCELERATION OR DIMINISHED BRAKING PERFORMANCE, AND THE REMAINING 11 REPORTS DESCRIBE AMBIGUOUS ALLEGATIONS OF STUCK THROTTLE WITHOUT REGARD TO SEVERITY OR CONSEQUENCE.ODI ANALYSIS OF FIELD INCIDENT DATA SHOWS THAT THE COMPLAINT AND WARRANTY TRENDS APPEAR TO BE IN DECLINE, WITH ONLY 1 ADDITIONAL COMPLAINT AND 6 WARRANTY CLAIMS RELATED TO THE ALLEGED DEFECT RECEIVED BY GM SINCE APRIL 2007. A SAFETY-RELATED DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY, THIS INVESTIGATION HAS BEEN CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST.THE AGENCY WILL TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.
Additional source detail variants (2)
Engine And Engine Cooling:exhaust System:emission Control:crankcase (pcv)
TO DATE, THE OFFICE OF DEFECTS INVESTIGATION (ODI) IS AWARE OF 29 NON-DUPLICATIVE COMPLAINTS/FIELD REPORTS AND 52 WARRANTY CLAIMS RELATED TO THE ALLEGED DEFECT AFFECTING 69 UNIQUE SUBJECT VEHICLES.BECAUSE THE ALLEGED DEFECT CONDITION IS MOST LIKELY TO OCCUR DURING WINTER MONTHS WHEN AMBIENT TEMPERATURES ARE BELOW FREEZING, ODI UPGRADED THIS INVESTIGATION TO AN ENGINEERING ANALYSIS ON FEBRUARY 14, 2008 SO THAT IT COULD CONTINUE TO MONITOR THE FIELD EXPERIENCE DURING THE 2007/2008 WINTER SEASON.BY LETTER DATED MAY 22, 2008, GENERAL MOTORS CORP. (GM) SUPPLEMENTED ITS PREVIOUS INFORMATION REQUEST RESPONSE WITH FIELD DATA RECEIVED BY GM THROUGH MAY 1, 2008.ACCORDING TO GM, WHEN MOISTURE FREEZES IN THE POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM AND/OR THE ENGINE AIR INTAKE TRACT IT IS MOST OFTEN OBSERVED AS A HARD TO START/NO START CONDITION, THROTTLE STUCK CLOSED, ROUGH RUNNING ENGINE, STALLING AT IDLE, OR OIL LEAKAGE.OF THE 29 COMPLAINTS RELATED TO STUCK THROTTLE, ODI IDENTIFIED 5 REPORTS THAT ALLEGE UNWANTED ACCELERATION, 13 REPORTS DESCRIBE AN APPARENT HIGH-IDLE CONDITION AT START UP OR WHEN SLOWING THE VEHICLE TO A STOP WITHOUT ANY ALLEGATION OF UNWANTED ACCELERATION OR DIMINISHED BRAKING PERFORMANCE, AND THE REMAINING 11 REPORTS DESCRIBE AMBIGUOUS ALLEGATIONS OF STUCK THROTTLE WITHOUT REGARD TO SEVERITY OR CONSEQUENCE.ODI ANALYSIS OF FIELD INCIDENT DATA SHOWS THAT THE COMPLAINT AND WARRANTY TRENDS APPEAR TO BE IN DECLINE, WITH ONLY 1 ADDITIONAL COMPLAINT AND 6 WARRANTY CLAIMS RELATED TO THE ALLEGED DEFECT RECEIVED BY GM SINCE APRIL 2007. A SAFETY-RELATED DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY, THIS INVESTIGATION HAS BEEN CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST.THE AGENCY WILL TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.
Vehicle Speed Control
TO DATE, THE OFFICE OF DEFECTS INVESTIGATION (ODI) IS AWARE OF 29 NON-DUPLICATIVE COMPLAINTS/FIELD REPORTS AND 52 WARRANTY CLAIMS RELATED TO THE ALLEGED DEFECT AFFECTING 69 UNIQUE SUBJECT VEHICLES.BECAUSE THE ALLEGED DEFECT CONDITION IS MOST LIKELY TO OCCUR DURING WINTER MONTHS WHEN AMBIENT TEMPERATURES ARE BELOW FREEZING, ODI UPGRADED THIS INVESTIGATION TO AN ENGINEERING ANALYSIS ON FEBRUARY 14, 2008 SO THAT IT COULD CONTINUE TO MONITOR THE FIELD EXPERIENCE DURING THE 2007/2008 WINTER SEASON.BY LETTER DATED MAY 22, 2008, GENERAL MOTORS CORP. (GM) SUPPLEMENTED ITS PREVIOUS INFORMATION REQUEST RESPONSE WITH FIELD DATA RECEIVED BY GM THROUGH MAY 1, 2008.ACCORDING TO GM, WHEN MOISTURE FREEZES IN THE POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM AND/OR THE ENGINE AIR INTAKE TRACT IT IS MOST OFTEN OBSERVED AS A HARD TO START/NO START CONDITION, THROTTLE STUCK CLOSED, ROUGH RUNNING ENGINE, STALLING AT IDLE, OR OIL LEAKAGE.OF THE 29 COMPLAINTS RELATED TO STUCK THROTTLE, ODI IDENTIFIED 5 REPORTS THAT ALLEGE UNWANTED ACCELERATION, 13 REPORTS DESCRIBE AN APPARENT HIGH-IDLE CONDITION AT START UP OR WHEN SLOWING THE VEHICLE TO A STOP WITHOUT ANY ALLEGATION OF UNWANTED ACCELERATION OR DIMINISHED BRAKING PERFORMANCE, AND THE REMAINING 11 REPORTS DESCRIBE AMBIGUOUS ALLEGATIONS OF STUCK THROTTLE WITHOUT REGARD TO SEVERITY OR CONSEQUENCE.ODI ANALYSIS OF FIELD INCIDENT DATA SHOWS THAT THE COMPLAINT AND WARRANTY TRENDS APPEAR TO BE IN DECLINE, WITH ONLY 1 ADDITIONAL COMPLAINT AND 6 WARRANTY CLAIMS RELATED TO THE ALLEGED DEFECT RECEIVED BY GM SINCE APRIL 2007. A SAFETY-RELATED DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY, THIS INVESTIGATION HAS BEEN CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST.THE AGENCY WILL TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.
PE07051 · Stuck Throttle Valve
Opened Oct 19, 2007 · Closed Feb 14, 2008
Status: closed (inferred from source dates) · Engine And Engine Cooling:exhaust System:emission Control:crankcase (pcv); Vehicle Speed Control
ON OCTOBER 19, 2007, THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED A PRELIMINARY EVALUATION TO INVESTIGATE ALLEGED STUCK THROTTLE INCIDENTS DUE TO ICE FORMATION WITHIN THE ENGINE AIR INTAKE TRACT IN CERTAIN MODEL YEAR (MY) 2004-2005 CHEVROLET AVEO VEHICLES MANUFACTURED FOR SALE OR LEASE IN THE UNITED STATES.THIS INVESTIGATION WAS PROMPTED BY A SAFETY RECALL CAMPAIGN (05F-069) CONDUCTED BY GENERAL MOTORS CORP. (GM) INVOLVING SUBSTANTIALLY SIMILAR VEHICLES MANUFACTURED FOR SALE OR LEASE IN CANADA.AT THAT TIME, GM ISSUED A TECHNICAL SERVICE BULLETIN (TSB #05-06-04-065) TO ADDRESS THE ALLEGED DEFECT CONDITION IN U.S. VEHICLES.GM SUBSEQUENTLY REVISED THE CANADIAN RECALL CAMPAIGN TO INCLUDE MORE DETAILED INSTRUCTIONS AFTER IT DISCOVERED CERTAIN VEHICLES WERE NOT PROPERLY SERVICED UNDER THE ORIGINAL RECALL CAMPAIGN.GM REVISED THE CANADIAN RECALL CAMPAIGN A SECOND TIME TO INCLUDE MORE SUBSTANTIAL CHANGES TO THE THROTTLE BODY, INTAKE MANIFOLD, POSITIVE CRANKCASE VENTILATION (PCV) AND ENGINE COOLING SYSTEMS TO FURTHER REDUCE THE LIKELIHOOD OF ICING WITHIN THE ENGINE AIR INTAKE TRACT.AGAIN, GM ISSUED A TECHNICAL SERVICE BULLETIN (TSB #08-06-04-009) TO ADDRESS THE ALLEGED DEFECT CONDITION IN U.S. VEHICLES USING THE REVISED PROCEDURE.ODI IS AWARE OF 28 NON-DUPLICATIVE COMPLAINTS/FIELD REPORTS AND 46 WARRANTY CLAIMS RELATED TO THE ALLEGED DEFECT AFFECTING 63 UNIQUE SUBJECT VEHICLES.THE ALLEGED DEFECT CONDITION IS MOST LIKELY TO OCCUR DURING THE WINTER MONTHS WHEN AMBIENT TEMPERATURES ARE BELOW FREEZING.HOWEVER, THE INFORMATION PROVIDED IN GM'S RESPONSE TO ODI'S INFORMATION REQUEST LETTER DATED NOVEMBER 2, 2007, DOES NOT CAPTURE EVENTS THAT MAY HAVE OCCURRED DURING THE MOST RECENT WINTER MONTHS.ACCORDINGLY, THIS INVESTIGATION HAS BEEN UPGRADED TO AN ENGINEERING ANALYSIS (EA08-005) TO FURTHER STUDY THE FREQUENCY OF THE ALLEGED DEFECT.
Additional source detail variants (2)
Engine And Engine Cooling:exhaust System:emission Control:crankcase (pcv)
ON OCTOBER 19, 2007, THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED A PRELIMINARY EVALUATION TO INVESTIGATE ALLEGED STUCK THROTTLE INCIDENTS DUE TO ICE FORMATION WITHIN THE ENGINE AIR INTAKE TRACT IN CERTAIN MODEL YEAR (MY) 2004-2005 CHEVROLET AVEO VEHICLES MANUFACTURED FOR SALE OR LEASE IN THE UNITED STATES.THIS INVESTIGATION WAS PROMPTED BY A SAFETY RECALL CAMPAIGN (05F-069) CONDUCTED BY GENERAL MOTORS CORP. (GM) INVOLVING SUBSTANTIALLY SIMILAR VEHICLES MANUFACTURED FOR SALE OR LEASE IN CANADA.AT THAT TIME, GM ISSUED A TECHNICAL SERVICE BULLETIN (TSB #05-06-04-065) TO ADDRESS THE ALLEGED DEFECT CONDITION IN U.S. VEHICLES.GM SUBSEQUENTLY REVISED THE CANADIAN RECALL CAMPAIGN TO INCLUDE MORE DETAILED INSTRUCTIONS AFTER IT DISCOVERED CERTAIN VEHICLES WERE NOT PROPERLY SERVICED UNDER THE ORIGINAL RECALL CAMPAIGN.GM REVISED THE CANADIAN RECALL CAMPAIGN A SECOND TIME TO INCLUDE MORE SUBSTANTIAL CHANGES TO THE THROTTLE BODY, INTAKE MANIFOLD, POSITIVE CRANKCASE VENTILATION (PCV) AND ENGINE COOLING SYSTEMS TO FURTHER REDUCE THE LIKELIHOOD OF ICING WITHIN THE ENGINE AIR INTAKE TRACT.AGAIN, GM ISSUED A TECHNICAL SERVICE BULLETIN (TSB #08-06-04-009) TO ADDRESS THE ALLEGED DEFECT CONDITION IN U.S. VEHICLES USING THE REVISED PROCEDURE.ODI IS AWARE OF 28 NON-DUPLICATIVE COMPLAINTS/FIELD REPORTS AND 46 WARRANTY CLAIMS RELATED TO THE ALLEGED DEFECT AFFECTING 63 UNIQUE SUBJECT VEHICLES.THE ALLEGED DEFECT CONDITION IS MOST LIKELY TO OCCUR DURING THE WINTER MONTHS WHEN AMBIENT TEMPERATURES ARE BELOW FREEZING.HOWEVER, THE INFORMATION PROVIDED IN GM'S RESPONSE TO ODI'S INFORMATION REQUEST LETTER DATED NOVEMBER 2, 2007, DOES NOT CAPTURE EVENTS THAT MAY HAVE OCCURRED DURING THE MOST RECENT WINTER MONTHS.ACCORDINGLY, THIS INVESTIGATION HAS BEEN UPGRADED TO AN ENGINEERING ANALYSIS (EA08-005) TO FURTHER STUDY THE FREQUENCY OF THE ALLEGED DEFECT.
Vehicle Speed Control
ON OCTOBER 19, 2007, THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED A PRELIMINARY EVALUATION TO INVESTIGATE ALLEGED STUCK THROTTLE INCIDENTS DUE TO ICE FORMATION WITHIN THE ENGINE AIR INTAKE TRACT IN CERTAIN MODEL YEAR (MY) 2004-2005 CHEVROLET AVEO VEHICLES MANUFACTURED FOR SALE OR LEASE IN THE UNITED STATES.THIS INVESTIGATION WAS PROMPTED BY A SAFETY RECALL CAMPAIGN (05F-069) CONDUCTED BY GENERAL MOTORS CORP. (GM) INVOLVING SUBSTANTIALLY SIMILAR VEHICLES MANUFACTURED FOR SALE OR LEASE IN CANADA.AT THAT TIME, GM ISSUED A TECHNICAL SERVICE BULLETIN (TSB #05-06-04-065) TO ADDRESS THE ALLEGED DEFECT CONDITION IN U.S. VEHICLES.GM SUBSEQUENTLY REVISED THE CANADIAN RECALL CAMPAIGN TO INCLUDE MORE DETAILED INSTRUCTIONS AFTER IT DISCOVERED CERTAIN VEHICLES WERE NOT PROPERLY SERVICED UNDER THE ORIGINAL RECALL CAMPAIGN.GM REVISED THE CANADIAN RECALL CAMPAIGN A SECOND TIME TO INCLUDE MORE SUBSTANTIAL CHANGES TO THE THROTTLE BODY, INTAKE MANIFOLD, POSITIVE CRANKCASE VENTILATION (PCV) AND ENGINE COOLING SYSTEMS TO FURTHER REDUCE THE LIKELIHOOD OF ICING WITHIN THE ENGINE AIR INTAKE TRACT.AGAIN, GM ISSUED A TECHNICAL SERVICE BULLETIN (TSB #08-06-04-009) TO ADDRESS THE ALLEGED DEFECT CONDITION IN U.S. VEHICLES USING THE REVISED PROCEDURE.ODI IS AWARE OF 28 NON-DUPLICATIVE COMPLAINTS/FIELD REPORTS AND 46 WARRANTY CLAIMS RELATED TO THE ALLEGED DEFECT AFFECTING 63 UNIQUE SUBJECT VEHICLES.THE ALLEGED DEFECT CONDITION IS MOST LIKELY TO OCCUR DURING THE WINTER MONTHS WHEN AMBIENT TEMPERATURES ARE BELOW FREEZING.HOWEVER, THE INFORMATION PROVIDED IN GM'S RESPONSE TO ODI'S INFORMATION REQUEST LETTER DATED NOVEMBER 2, 2007, DOES NOT CAPTURE EVENTS THAT MAY HAVE OCCURRED DURING THE MOST RECENT WINTER MONTHS.ACCORDINGLY, THIS INVESTIGATION HAS BEEN UPGRADED TO AN ENGINEERING ANALYSIS (EA08-005) TO FURTHER STUDY THE FREQUENCY OF THE ALLEGED DEFECT.