NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
235 reports26,000 miles · Sep 5, 2007
Air BagsSeat BeltsCrashInjury
LTR FM REQUEST THE INVESTIGATION OF HIS 2005 CHEVROLET AVEO HIS SEATBELT FAILED AND AIRBAGS DID NOT DEPLOYED IN ACCIDENT**CC THE CONSUMER STATED HE WAS REAR ENDED ON JULY 30, 2007 WHICH RENDERED HIM UNCONSCIOUS AND HE WOKE UP IN AN AMBULANCE. THE CONSUMER WAS THROWN FROM THE DRIVERS SEAT, EVEN THOUGH HE HAD ON HIS SEAT BELT, TH…
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LTR FM REQUEST THE INVESTIGATION OF HIS 2005 CHEVROLET AVEO HIS SEATBELT FAILED AND AIRBAGS DID NOT DEPLOYED IN ACCIDENT**CC THE CONSUMER STATED HE WAS REAR ENDED ON JULY 30, 2007 WHICH RENDERED HIM UNCONSCIOUS AND HE WOKE UP IN AN AMBULANCE. THE CONSUMER WAS THROWN FROM THE DRIVERS SEAT, EVEN THOUGH HE HAD ON HIS SEAT BELT, THROUGH THE PASSENGER DOOR WINDOW, BREAKING IT IN THE PROCESS, THE DOOR DID NOT OPEN. THE CONSUMER WAS SEEN BEING EJECTED OUT THE WINDOW. THE CONSUMER THEN HIT ANOTHER VEHICLE FROM THE REAR. THE CONSUMER FURTHER STATED EVEN THOUGH THE CAR WAS SEVERELY DAMAGED THE AIR BAGS DID NOT DEPLOY. THE CONSUMER STATED HE WOULD LIKE AN INVESTIGATION AS TO WHY HIS SEAT BELTS FAILED AND AIR BAGS DID NOT DEPLOY DURING SUCH A SERIOUS ACCIDENT. *TR THE CONSUMER STATED AFTER SPEAKING WITH OTHER WITNESSES HE WAS APPARENTLY HIT IN FRONT AND SPUN AROUND AND THEN HIT ONCE AGAIN IN THE REAR. COMMONWEALTH OF VA POLICE REPORT ATTACHED. UPDATED 10/03/07 *TR
NHTSA ODI #10202644
31,197 miles · Sep 2, 2007
Air BagsService Brakes, HydraulicCrashInjury
I WAS TRAVELING APPROXIMATELY 35 TO 40 MPH ON A STRAIGHT ROAD. THE VEHICLE IN FRONT OF ME STOPPED ABOUT 75 FEET AHEAD OF ME. I PRESSED ON THE BRAKE PEDAL TO STOP BUT THERE WAS NO PRESSURE AND IT WENT TO THE FLOOR. DUE TO HAVING NO BRAKES, I HIT THE BACK OF THE OTHER CAR. THE AIRBAG FAILED TO DEPLOY AND I HIT MY HEAD ON THE ST…
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I WAS TRAVELING APPROXIMATELY 35 TO 40 MPH ON A STRAIGHT ROAD. THE VEHICLE IN FRONT OF ME STOPPED ABOUT 75 FEET AHEAD OF ME. I PRESSED ON THE BRAKE PEDAL TO STOP BUT THERE WAS NO PRESSURE AND IT WENT TO THE FLOOR. DUE TO HAVING NO BRAKES, I HIT THE BACK OF THE OTHER CAR. THE AIRBAG FAILED TO DEPLOY AND I HIT MY HEAD ON THE STEERING WHEEL. WHEN I REVERSED THE CAR AND PRESSED ON THE BRAKES AGAIN THEY WORKED. THE FRONT END OF THE CAR WAS SMASHED IN DAMAGING THE HEADLIGHTS, RADIATOR, HOOD, BUMPER, AND UNKNOWN OTHER PARTS AT THIS TIME. *TR
NHTSA ODI #10201710
Mileage unknown · Sep 2, 2007
Air BagsSuspensionCrashInjury
TRAVELING ON 695 DRIVING ON AN OVERPASS FROM WORK, 05 AVEO PULLED TO THE RIGHT. WHEN I ATTEMPTED TO CORRECT THE DIRECTION OF THE CAR BY TURNING SLIGHTLY LEFT, THE CAR COULD NOT BE CORRECTED WITH STEERING OR BRAKE, IT WENT LEFT ACROSS THE OTHER LANE AND HIT A JERSEY WALL. CAR ROLLED OVER. SPEED WAS ABOUT 50-55. I WAS LUCKY I HAD …
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TRAVELING ON 695 DRIVING ON AN OVERPASS FROM WORK, 05 AVEO PULLED TO THE RIGHT. WHEN I ATTEMPTED TO CORRECT THE DIRECTION OF THE CAR BY TURNING SLIGHTLY LEFT, THE CAR COULD NOT BE CORRECTED WITH STEERING OR BRAKE, IT WENT LEFT ACROSS THE OTHER LANE AND HIT A JERSEY WALL. CAR ROLLED OVER. SPEED WAS ABOUT 50-55. I WAS LUCKY I HAD MY SEAT BELT ON AND WAS NOT HIT BY ANOTHER AUTO OR TRUCK. WHETHER WAS CLEAR BUT WINDY. TIME WAS 1:30PM. *TR
NHTSA ODI #10201708
Mileage unknown · Aug 24, 2007
Vehicle Speed Control
MY 2005 CHEVROLET AVEO ACCELERATES OR MAINTAINS VERY HIGH RPM'S WITH NO PRESSURE ON THE GAS PEDAL. THIS HAS BEEN OCCURRING SINCE MY PURCHASE OF THE CAR, ON AN IRREGULAR BASIS. SOMETIMES IT WILL CONTINUE FOR WEEKS AT A TIME, SOMETIMES THERE IS NO PROBLEM FOR WEEKS. THIS PROBLEM MAKES THE CAR EXTREMELY DANGEROUS TO DRIVE, NECESSIT…
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MY 2005 CHEVROLET AVEO ACCELERATES OR MAINTAINS VERY HIGH RPM'S WITH NO PRESSURE ON THE GAS PEDAL. THIS HAS BEEN OCCURRING SINCE MY PURCHASE OF THE CAR, ON AN IRREGULAR BASIS. SOMETIMES IT WILL CONTINUE FOR WEEKS AT A TIME, SOMETIMES THERE IS NO PROBLEM FOR WEEKS. THIS PROBLEM MAKES THE CAR EXTREMELY DANGEROUS TO DRIVE, NECESSITATING VERY HEAVY BRAKE USE AND FREQUENT SHIFTING INTO NEUTRAL (AUTOMATIC TRANSMISSION) TO TRY AND CONTROL THE ACCELERATION. I HAVE HAD THE VEHICLE IN TO THE CHEVROLET REPAIR DEPARTMENT FOUR TIMES, BUT IT WILL NOT SHOW THIS PROBLEM WHEN THEY TEST DRIVE IT. CHEVROLET HAS REPLACED ONE METAL WASHER ON THE ACCELERATOR CABLE, REPLACED THE ATMOSPHERIC PRESSURE SENSOR, AND INSTALLED A MINI-COMPUTER WHICH WAS UNABLE TO RECORD THE PROBLEM. CHEVROLET SEEMS ONLY WILLING TO MAKE THE CHEAPEST REPAIRS POSSIBLE, AND IT WILL BE CLOSE TO TWO YEARS NOW THAT I HAVE HAD TO DEAL WITH THIS UNCONTROLLED ACCELERATION. *TR
NHTSA ODI #10200715
Mileage unknown · Jun 24, 2007
Visibility
I HAVE TAKEN MY CAR IN SEVERAL TIMES TO SEE WHY THERE IS SUCH A BAD SHAKING WHEN I REACH SPEEDS IN EXCESS OF 55 MPH AND THERE SEEMS TO BE NO REASON AFTER BALANCING MY TIRES, ON TOP OF HAVING ALL REPLACED AND ALLINING THE TIRES THERE IS A HORRIBLE SHAKING OF THE STEERING WHEEL AND A VERY LOUD NOISE LIKE A ROARING OISE IN THE BACK…
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I HAVE TAKEN MY CAR IN SEVERAL TIMES TO SEE WHY THERE IS SUCH A BAD SHAKING WHEN I REACH SPEEDS IN EXCESS OF 55 MPH AND THERE SEEMS TO BE NO REASON AFTER BALANCING MY TIRES, ON TOP OF HAVING ALL REPLACED AND ALLINING THE TIRES THERE IS A HORRIBLE SHAKING OF THE STEERING WHEEL AND A VERY LOUD NOISE LIKE A ROARING OISE IN THE BACK OF MY CAR. ALSO I HAVE A HUGE CRACK IN THE WINDSHILED THAT I THOUGHT CAME FROM A PEPPLE OR SOMETHING HITTING THE WINDSHIELD HOWEVER THERE IS NOT A DENT SO TO SPEAK OR ANY MARKS THAT WOULD INDICATE A ROCK HIT IT, THE CRACK STARTS UDER TEH RUBBER LINING AND GOES ALL THE WAY DOWN THE WINDSHIELD FROM ONE END TO THE OTHER. FB
NHTSA ODI #10194086
45,000 miles · May 20, 2007
Air BagsCrash
AT ABOUT 9:30 PM ON THE 18TH OF MAY 2007, MY CAR WAS STRUCK HEAD ON AT AN INTERSECTION IN EL CENTRO, CA. MY CAR WAS SITTING STILL AT THE TIME, THE VEHICLE THAT STRUCK ME WAS GOING ABOUT 60 MPH. MY RADIATOR AND ENGINE WERE BOTH HIT HARD ENOUGH TO DESTROY THEM, MY AIR BAGS NEVER DEPLOYED. *TR
NHTSA ODI #10191278
Mileage unknown · Mar 28, 2007
Exterior Lighting
TL* - THE CONTACT OWNS A 2005 CHEVROLET AVEO. AT THE TIME THE VEHICLE WAS PURCHASED THE CONTACT OBSERVED THAT THE TAIL LIGHTS WOULD NOT OPERATE PROPERLY UNLESS THE HEADLIGHTS WERE ON. DUE TO THE FAILURE THE CONTACT ALMOST CAUSED A CRASH. GMC ADVISED THE CONTACT TO CALL THE DEALER REGARDING THE FAILURE. THE DEALER STATED THAT …
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TL* - THE CONTACT OWNS A 2005 CHEVROLET AVEO. AT THE TIME THE VEHICLE WAS PURCHASED THE CONTACT OBSERVED THAT THE TAIL LIGHTS WOULD NOT OPERATE PROPERLY UNLESS THE HEADLIGHTS WERE ON. DUE TO THE FAILURE THE CONTACT ALMOST CAUSED A CRASH. GMC ADVISED THE CONTACT TO CALL THE DEALER REGARDING THE FAILURE. THE DEALER STATED THAT THEY WERE UNAWARE THAT THE TAIL LIGHTS WOULD NOT OPERATE UNLESS THE HEADLIGHTS WERE ON. THE DEALER DIDN'T STATE WHETHER IT COULD BE REPAIRED. THE VEHICLE'S FAILURE MILEAGE WAS 0 BECAUSE AT THE TIME THE FAILURE OCCURRED IT WAS PURCHASED BRAND NEW. THE CURRENT MILEAGE WAS 43,000. *AK UPDATE *4/23/07 **TR
NHTSA ODI #10186379
31,000 miles · Feb 4, 2007
Latches/locks/linkagesUnknown Or Other
I ARRIVED AT THE GAS STATION TO FILL UP AND WHEN I ATTEMPTED TO OPEN THE GAS CAP SHIELD, THE MECHANISM JAMMED AND I HAD TO PRY IT OPEN. THEN A FEW MOMENTS LATER, WHEN I ATTEMPTED TO LOCK THE DOOR FROM THE OUTSIDE, THE ENTIRE LOCKING MECHANISM ON THE DRIVER'S SIDE FELL INSIDE THE INTERIOR OF THE CAR DOOR. I HAVE CONTACTED THE DEA…
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I ARRIVED AT THE GAS STATION TO FILL UP AND WHEN I ATTEMPTED TO OPEN THE GAS CAP SHIELD, THE MECHANISM JAMMED AND I HAD TO PRY IT OPEN. THEN A FEW MOMENTS LATER, WHEN I ATTEMPTED TO LOCK THE DOOR FROM THE OUTSIDE, THE ENTIRE LOCKING MECHANISM ON THE DRIVER'S SIDE FELL INSIDE THE INTERIOR OF THE CAR DOOR. I HAVE CONTACTED THE DEALER AND WAS TOLD TO BRING IT IN. HOWEVER, UNTIL I DO THERE IS NO WAY TO LOCK THE DOOR! *NM
NHTSA ODI #10181526
5,900 miles · Jan 29, 2007
Visibility
SUMMER 2005 THE DRIVER'S SIDE WINDSHIELD WIPER STOPPED WORKING DURING A RAINSTORM WHILE OPERATING THE VEHICLE LEAVING MY VISIBILITY EXTREMELY IMPAIRED. UPON SUBSEQUENT EXAMINATION, I NOTICED THAT THE NUT HOLDING THE WIPER TO THE POST HAD LOOSENED AND BACKED OFF. THIS STRIPPED THE MATING GROVES OFF BOTH THE WIPER ARM (CAST ALUMI…
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SUMMER 2005 THE DRIVER'S SIDE WINDSHIELD WIPER STOPPED WORKING DURING A RAINSTORM WHILE OPERATING THE VEHICLE LEAVING MY VISIBILITY EXTREMELY IMPAIRED. UPON SUBSEQUENT EXAMINATION, I NOTICED THAT THE NUT HOLDING THE WIPER TO THE POST HAD LOOSENED AND BACKED OFF. THIS STRIPPED THE MATING GROVES OFF BOTH THE WIPER ARM (CAST ALUMINUM) AND POST (SOFT METAL). EVEN AFTER RE-TIGHTENING THE NUT, THE WIPER WAS UNABLE TO MOVE BECAUSE THE WIPER ARM AND POST WERE TOO BADLY DAMAGED; ALL OF THE GROVES WERE ENTIRELY REMOVED FOR THE CAST ALUMINUM WIPER ARM. I WAS UNABLE TO GO TO A DEALER TO HAVE THIS REPAIRED. I DRILLED A KEYWAY INTO BOTH THE WIPER ARM AND POST. I FILLED THE KEYWAY WITH A PORTION OF A LARGE PAPER CLIP. THE DAMAGE REMAINS THIS WAY CURRENTLY. SUMMER 2005 HAVING EXPERIENCED THE PROBLEM WITH THE AVEO 2004 (ABOVE) I TIGHTENED THE NUTS ON BOTH THE PASSENGER AND DRIVER'S WIPERS ON MY AVEO 2005. JANUARY 2007 THE DRIVER'S SIDE WINDSHIELD WIPER STOPPED WORKING DURING A SNOWSTORM WHILE OPERATING VEHICLE LEAVING MY WIFE'S VISIBILITY EXTREMELY IMPAIRED. UPON SUBSEQUENT EXAMINATION, I NOTICED THAT THE NUT HOLDING THE WIPER TO THE POST HAD LOOSENED AND BACKED OFF EVEN WITH RE-TIGHTENING THIS NUT IN THE SUMMER OF 2005. THIS STRIPPED THE MATING GROVES OFF BOTH THE WIPER ARM (CAST ALUMINUM) AND POST (SOFT METAL). I HAVE TAKEN THIS CAR TO THE DEALER TO HAVE BOTH THE WIPER ARM AND POST REPLACED. I AM CURRENTLY WAITING ON PARTS TO HAVE TO REPAIR MADE.--AFTER SEARCHING THE WEB I DISCOVERED THAT SOMEONE ELSE HAD A PROBLEM WITH THEIR DRIVER'S SIDE WIPER ARM NUT COMING LOOSE. HTTP://WWW.EPINIONS.COM/CONTENT_160219565700. *JB
NHTSA ODI #10181029
34,505 miles · Jan 17, 2007
Suspension
I BOUGHT THE 05 AVEO ON NOV 15, 2006, I HAVE EXPERIENCED FRONT END SHAKING AT SPEEDS OF 50, THE DEALERSHIP REPLACED THE ENGINE AND TRANSMISSION MOUNTS. THE PROBLEM IS BETTER BUT STILL THERE. ALSO HAVE HAD FRONT END NOISE LIKE CREEKS OVER BUMPS AND MAKING TURNS, THE DEALERSHIP REPLACED THE BUSHINGS, THE NOISE WENT AWAY FOR A COUP…
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I BOUGHT THE 05 AVEO ON NOV 15, 2006, I HAVE EXPERIENCED FRONT END SHAKING AT SPEEDS OF 50, THE DEALERSHIP REPLACED THE ENGINE AND TRANSMISSION MOUNTS. THE PROBLEM IS BETTER BUT STILL THERE. ALSO HAVE HAD FRONT END NOISE LIKE CREEKS OVER BUMPS AND MAKING TURNS, THE DEALERSHIP REPLACED THE BUSHINGS, THE NOISE WENT AWAY FOR A COUPLE OF DAYS BUT CAME BACK TWICE AS BAD, TOOK THE CAR BACK TO THE DEALERSHIP NOW AM WAITING FOR NEW BUSHINGS TO BE ORDERED."WITH THE HOPES THAT IT WILL END THE PROBLEM" AS PER SERVICE MANAGER. *JB
NHTSA ODI #10178996
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.
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