NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
206 reports66,000 miles · Mar 17, 2011
Electrical SystemElectronic Stability Control (esc)Engine And Engine Cooling
MY AVEO IS SUPPOSED TO HAVE A WARNING LIGHT TO COME ON WHEN THE ENGINE HAS TO BE SERVICED. APPARENTLY, THIS LIGHT DID NOT COME ON FOR THE WARNING THAT THERE WAS SOMETHING WRONG WITH THE VEHICLE THAT I NEED TO FIND OUT ABOUT. DRIVING TO ME(THE VEHICLE WAS DRIVEN BY MY CHILD OF 28 YEARS WITH A 3 MONTH OLD IN A REAR CAR SEAT) TO PI…
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MY AVEO IS SUPPOSED TO HAVE A WARNING LIGHT TO COME ON WHEN THE ENGINE HAS TO BE SERVICED. APPARENTLY, THIS LIGHT DID NOT COME ON FOR THE WARNING THAT THERE WAS SOMETHING WRONG WITH THE VEHICLE THAT I NEED TO FIND OUT ABOUT. DRIVING TO ME(THE VEHICLE WAS DRIVEN BY MY CHILD OF 28 YEARS WITH A 3 MONTH OLD IN A REAR CAR SEAT) TO PICK ME UP TO TAKE ME TO WORK THE CAR JUST STOPPED. IN THE MIDDLE OF ONGOING TRAFFIC. THANKFULLY THE CAR WAS NOT HIT BUT THE POLICE AS WELL AS MY BROTHER (WHOM WAS ON HIS WAY TO WORK) WERE ABLE TO GET THE CAR TO THE SIDE OF THE ROAD. HER FATHER (HE WAS CALLED) SHOWED UP WITH A TOW ON ITS WAY TO TAKE IT TO MY MECHANIC. IT WAS DETERMINED THAT THE TIMING CHAIN/BELT WENT. BECAUSE THE CAR WAS IN MOTION IT ALSO CAUSED THE BENDING OF 2 PISTONS. IN ORDER TO FIX IT PROPERLY THIS MECHANIC WAS NOT ABLE TO DO SO. I WAS INFORMED HOWEVER THAT ALL AVEOS FROM THIS MODEL OR YEAR HAS SHOWN TO HAVE THE TIMING BELT/CHAIN TO MALFUNCTION BETWEEN THE MILEAGE OF 40,000- 80,000 MILES. SO, I AM TRYING TO FIND OUT IF THERE IS A RECALL ON FIRST THE WARNING LIGHT NOT INDICATING THERE WAS SOMETHING WRONG AND SECOND, THE TIMING CHAIN/BELT MALFUNCTIONING REPEATEDLY BETWEEN THE MILES OF 40,000-80,000 MILES. I LOVE MY AVEO BECAUSE IT IS THE PERFECT SIZE, EXCELLENT ON GAS AND BEING A 2004 MODEL THERE IS ONLY ABOUT 66,000 MILES OR SO ON IT. I AM TRULY MISSING MY AVEO AND WOULD APPRECIATE IT IF SOMEONE CAN HELP ME GET IT BACK TO NORMAL SO I CAN TAKE IT HOME. I HAVE TO SAY THAT THIS IS MY FIRST REAL CAR AND I WOULD RATE IT IN THE TOP TEN VEHICLES TO PURCHASE FOR ITS TOTAL ECONOMICAL QUALITIES. SO, PLEASE LET ME KNOW AT YOUR EARLIEST CONVENIENCE.
NHTSA ODI #10392031
59,000 miles · Mar 4, 2011
Power Train
CAR STALLED ON A BUSY 4 LANE INTERSTATE WITH MY SON INLAW DAUGHTER AND GRANDDAUGHTER IN VEHICLE WITHOUT WARNING. THE CAR BARELY COASTED ENOUGH TO MAKE IT OFF THE HIGHWAY INTO EMERGENCY LANE. CAR FAIL TO START AGAIN. HAD CAR TOWED TO CHEVY DEALERSHIP. SERVICE DEPARTMENT CALLED AND SAID THE TIMING BELT HAD BROKEN. THE CAR ONLY HAD…
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CAR STALLED ON A BUSY 4 LANE INTERSTATE WITH MY SON INLAW DAUGHTER AND GRANDDAUGHTER IN VEHICLE WITHOUT WARNING. THE CAR BARELY COASTED ENOUGH TO MAKE IT OFF THE HIGHWAY INTO EMERGENCY LANE. CAR FAIL TO START AGAIN. HAD CAR TOWED TO CHEVY DEALERSHIP. SERVICE DEPARTMENT CALLED AND SAID THE TIMING BELT HAD BROKEN. THE CAR ONLY HAD 59,000 MILES ON IT. I STATED TO THE SERVICE MANAGER THAT THE BELT SHOULD STILL BE UNDER WARRANTY AND WAS DISAPPOINTED THAT ABOUT IT. HE AGREED ALSO THAT THE BELT SHOULDN'T HAVE FAILED WITHIN THAT AMOUNT OF MILEAGE. HE GAVE ME THE NUMBER TO CALL CHEVY TO SEE WHAT COULD BE DONE TO SOLVE THE PROBLEM. THEY REFUSED TO FIX THE PROBLEM. SO NOW I'M STUCK WITH A PILE OF JUNK BECAUSE THEY USED A CHEAP MADE BELT THAT HAS PREMATURELY FAILED ON COUNTLESS 04 & 05 AVEOS ENOUGH TO HAVE A WEBSITE CALLED AVEOSFAIL.COM. I READ STORIES THAT STATED THESE CHEAP BELTS FAILED ANYWHERE FROM 18,000 UP. MOSTLY WHERE IN THE 59,000 TO 65,000 MILE RANGE. US TAX PAYERS HAD TO BAIL THE COMPANY OUT WHY CAN'T THEY TAKE CARE OF THIS PROBLEM? THAT MIGHT BE ONE OF THE REASONS THEY HAD TO BE BAILED OUT IN THE FIRST PLACE, BECAUSE I WOULD BUY A STUBBORN MULE BEFORE I EVER BUY ANOTHER CHEVY! THE MULE WOULD BE MORE RELIABLE. THE CAR WAS TOWED BACK TO MY HOUSE. I TOOK APART THE TIMING COVER TO FIND THE BELT WASN'T BROKEN BUT THE RIBS ON THE BELT WERE BASICALLY FALLING OFF THE BELT, LIKE THEY HAD COME UNGLUED. WHY SHOULD WE ALL SUFFER BECAUSE OF THEIR POOR BELT DESIGN OR MANUFACTURER FLAWS. IF THEY DON'T STEP UP AND TAKE RESPONSIBLITY THEY SHOULD BE ASHAMED AND SHOULDN'T BE BAILED OUT BY THE TAX PAYERS PERIOD. *TR
NHTSA ODI #10386517
58,000 miles · Feb 7, 2011
Engine And Engine Cooling
CHEVY 2004 AVERO TIMING BELT BROKE WHICH ALSO DAMAGE ENGINE HAD TO REPLACE VALVES WHICH COST OVER $1100.00. THIS INCIDENT HAPPEN WHEN MY WIFE WAS COMING FROM THERAPY ON A HIGHWAY (BQE), IN BROOKLYN WHEN OUT OF NO-WHERE WITH NO WARNING SIGNS, THE CAR JUST STOP, WHICH COULD HAVE CAUSE A UNTHINKABLE EVENTS OF ACCIDENTS. THANK TO …
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CHEVY 2004 AVERO TIMING BELT BROKE WHICH ALSO DAMAGE ENGINE HAD TO REPLACE VALVES WHICH COST OVER $1100.00. THIS INCIDENT HAPPEN WHEN MY WIFE WAS COMING FROM THERAPY ON A HIGHWAY (BQE), IN BROOKLYN WHEN OUT OF NO-WHERE WITH NO WARNING SIGNS, THE CAR JUST STOP, WHICH COULD HAVE CAUSE A UNTHINKABLE EVENTS OF ACCIDENTS. THANK TO MY HIGHER POWER , THAT NO ONE WAS HURT OR EVEN WORSE, FATALLY INJURED. I HAD THE ENGINE RE-BUILT, HOPEFULLY THIS WOULD NEVER HAPPEN AGAIN, BECAUSE I WILL ALWAYS HAVE THE TIMING BELT INSPECTED EVER TIME I CHANGE THE OIL TO AVOID ANY FAILURE OR UNWANTED INJURIES OR DEATH DUE TO GM LACK OF NOT RECALLING THIS VECHICLE BECAUSE MY 2004 AVERO ONLY HAD 58,000 MOLES ONLY, WHEN THE CAR MANUAL INDICATES THAT IT SHOULD BE REPLACE EVERY 60,000 MILES. *LN
NHTSA ODI #10381025
82,000 miles · Feb 4, 2011
Air BagsCrash
TL*THE CONTACT OWNS A 2004 CHEVROLET AVEO LS. WHILE DRIVING APPROXIMATELY 60 MPH, THE CONTACT CRASHED INTO A MEDIAN AND A SNOW BANK. THE AIR BAGS DID NOT DEPLOY. APPROXIMATELY TWO MONTHS LATER, WHILE DRIVING APPROXIMATELY 65 MPH, THE VEHICLE SLID ON BLACK ICE CAUSING THE VEHICLE TO ROLL OVER AND THE AIR BAGS FAILED TO DEPLOY. …
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TL*THE CONTACT OWNS A 2004 CHEVROLET AVEO LS. WHILE DRIVING APPROXIMATELY 60 MPH, THE CONTACT CRASHED INTO A MEDIAN AND A SNOW BANK. THE AIR BAGS DID NOT DEPLOY. APPROXIMATELY TWO MONTHS LATER, WHILE DRIVING APPROXIMATELY 65 MPH, THE VEHICLE SLID ON BLACK ICE CAUSING THE VEHICLE TO ROLL OVER AND THE AIR BAGS FAILED TO DEPLOY. THE VEHICLE WAS DESTROYED. THE CONTACT DID NOT MENTION IF THERE WERE ANY INJURIES. A POLICE REPORT WAS FILED. THE DEALER WAS NOTIFIED AND WAS UNAWARE OF THE AIR BAG FAILURE. THE CURRENT MILEAGE WAS 85,000 AND THE FAILURE MILEAGES WAS 82,000.
NHTSA ODI #10380221
92,941 miles · Jan 20, 2011
Engine And Engine Cooling
WAS SITTING AT A STOP LIGHT WHEN THE ENGINE ALL OF THE SUDDEN QUIT. LISTENING TO IT WHILE TRYING TO RESTART THE ENGINE, MY FIRST THOUGH WAS TIMING BELT. AFTER GETTING THE VEHICLE HOME AND INSPECTED, THE TIMING BELT WAS TIGHT BUT NOT TURNING ANYTHING, UPON FURTHER EXAMINATION IT WAS DISCOVERED THAT 14 OF 16 VALVES ARE BENT ALT…
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WAS SITTING AT A STOP LIGHT WHEN THE ENGINE ALL OF THE SUDDEN QUIT. LISTENING TO IT WHILE TRYING TO RESTART THE ENGINE, MY FIRST THOUGH WAS TIMING BELT. AFTER GETTING THE VEHICLE HOME AND INSPECTED, THE TIMING BELT WAS TIGHT BUT NOT TURNING ANYTHING, UPON FURTHER EXAMINATION IT WAS DISCOVERED THAT 14 OF 16 VALVES ARE BENT ALTHOUGH THE CRANK SHAFT TURN THE TIMING BELT IS NOT. THIS IS A PROBLEM THAT GM KNOWS ABOUT WITH THE 2004 CHEVROLET AVEO AND WILL NOT STAND BEHIND THEIR PRODUCT WHEN THEY KNOW THEY HAVE A PROBLEM. #1 NO CLEARANCE BETWEEN PISTON AND VALVES. #2 FAULTY TIMING BELT. *TR
NHTSA ODI #10377979
91,000 miles · Jan 16, 2011
Unknown Or Other
FIRST, THE STRUTS CAME OFF, THEN THE PIECE HOLDING THE AIR FILTER BROKE AWAY, NOW THE PULLEY HAS EXPLODED AND HAS DESTROYED THE TIMING BELT AND SERPENTINE BELT. THIS CAR IS JUNK MADE WITH CHEAP PARTS. NOT GOOD FOR SOMEONE WITH CHILDREN. *LN
NHTSA ODI #10376857
4,327 miles · Jan 10, 2011
Unknown Or Other
MY COMPLAINT INVOLVES A REPLACEMENT TIMING BELT MANUFACTURED BY GENERAL MOTORS DETROIT AND PURCHASED ON MY BEHALF FROM THE PARTS DEPARTMENT OF STEVE RAYMAN CHEVROLET ON MARCH 29, 2010 BY KEN BLACK OF FAIRGROUND AUTO AND BODY SHOP FOR INSTALLATION ON MY 2004 CHEVROLET AVEO. THE REPLACEMENT OF THE TIMING BELT WAS ROUTINE MAINTENA…
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MY COMPLAINT INVOLVES A REPLACEMENT TIMING BELT MANUFACTURED BY GENERAL MOTORS DETROIT AND PURCHASED ON MY BEHALF FROM THE PARTS DEPARTMENT OF STEVE RAYMAN CHEVROLET ON MARCH 29, 2010 BY KEN BLACK OF FAIRGROUND AUTO AND BODY SHOP FOR INSTALLATION ON MY 2004 CHEVROLET AVEO. THE REPLACEMENT OF THE TIMING BELT WAS ROUTINE MAINTENANCE AND WAS INTENDED TO PROTECT MY AUTO FROM DAMAGE THAT MIGHT OCCUR WHEN A TIMING BELT FAILS. AT THAT TIME MY CAR MILEAGE WAS 69631. ON OCTOBER 1, 2010, THIS REPLACEMENT TIMING BELT FAILED AFTER ONLY 4327 MILES AND 6 MONTHS OF SERVICE. A SECTION OF THE TEETH WHICH ENGAGED THE TIMING BELT SEPARATED FROM THE BODY OF THE BELT. THE DEFECTIVE BELT FLEW INTO MY ENGINE CAUSING EXTENSIVE DAMAGE. I HAD THE VEHICLE TOWED TO FAIRGROUND AUTO WHERE THIS DAMAGE WAS REPAIRED AT A COST TO ME OF $2098.30. MR. KEN BLACK ADVISED ME THAT SINCE THE BELT WAS DEFECTIVE HE BELIEVED THAT GENERAL MOTORS SHOULD REIMBURSE ME FOR THE REPAIR. HE TOOK THE BELT BACK TO STEVE RAYMAN CHEVROLET WHERE HE SHOWED IT TO THE PARTS MANAGER MIKE STEWART WHO CONCURRED THAT THE BELT DEFINITELY HAD A MANUFACTURING DEFECT AND MADE ATTEMPTS TO GET GM IN DETROIT TO STAND BEHIND THE PART AND TAKE CARE OF MY DAMAGES. GM REFUSED TO DO ANYTHING. THESE DETAILS CAN BE VERIFIED WITH KEN BLACK OF FAIRGROUND AUTO AT 770 429 8473 AS WELL AS MIKE STEWART, PARTS MANAGER AT STEVE RAYMAN CHEVROLET, AT 770 953 0100 EXT 3047.
NHTSA ODI #10376089
80,000 miles · Dec 7, 2010
Engine And Engine Cooling
MY DAUGHTER'S FIRST CAR PURCHASE...WHAT A DISAPPOINTMENT. BOUGHT THE 2004 CHEVY AVEO USED WITH 80,000 MILES ON IT ON A SATURDAY. IT BROKE DOWN SUNDAY. TIMING BELT BROKE AND CAUSED SEVERE DAMAGE TO THE ENGINE...NOW IT NEEDS TO BE REPLACED. ALWAYS DO YOUR RESEARCH...A QUICK SEARCH WHILE WATCHING THE CAR GET TOWED SHOWED THAT TH…
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MY DAUGHTER'S FIRST CAR PURCHASE...WHAT A DISAPPOINTMENT. BOUGHT THE 2004 CHEVY AVEO USED WITH 80,000 MILES ON IT ON A SATURDAY. IT BROKE DOWN SUNDAY. TIMING BELT BROKE AND CAUSED SEVERE DAMAGE TO THE ENGINE...NOW IT NEEDS TO BE REPLACED. ALWAYS DO YOUR RESEARCH...A QUICK SEARCH WHILE WATCHING THE CAR GET TOWED SHOWED THAT THIS IS A HUGE, WIDE-SPREAD PROBLEM THAT GM HAS DECIDED TO DO NOTHING ABOUT. DEALERSHIP WORKING WITH US TO RESOLVE THE PROBLEM WITH A SWAP IN VEHICLES. *TR
NHTSA ODI #10369436
35,000 miles · Dec 6, 2010
Air Bags
AIR BAG LIGHT WILL NOT SHUT OFF. DEALER HAS REPAIRED IT AT LEAST 4 TIMES AND NOW IT IS ON AGAIN. HE SAYS THEY CAN'T OR WON'T DO IT UNDER WARRANTY, AND TOLD ME IT WOULD COST ABOUT $500.00 THIS IS JUST NOT ACCEPTABLE. SEEMS LIKE THERE ARE LOTS OF COMPLAINTS ABOUT AVEO AIR BAG LIGHT STAYING ON. THERE SHOULD BE A RECALL AND GET…
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AIR BAG LIGHT WILL NOT SHUT OFF. DEALER HAS REPAIRED IT AT LEAST 4 TIMES AND NOW IT IS ON AGAIN. HE SAYS THEY CAN'T OR WON'T DO IT UNDER WARRANTY, AND TOLD ME IT WOULD COST ABOUT $500.00 THIS IS JUST NOT ACCEPTABLE. SEEMS LIKE THERE ARE LOTS OF COMPLAINTS ABOUT AVEO AIR BAG LIGHT STAYING ON. THERE SHOULD BE A RECALL AND GET THEM FIXED. *TR
NHTSA ODI #10369407
37,000 miles · Nov 22, 2010
Air BagsCrashInjury
CAR WAS TRAVELING AT APPROXIMATELY 40 KM\H WHEN A SUDDEN STOP OCCURRED IN TRAFFIC. MY WIFE WAS ABOUT TO CHANGE LANES AND WAS LOOKING IN HER BLIND SPOT AND WHEN SHE TURNED BACK SHE COULD NOT STOP IN TIME. SHE REAR-ENDED ANOTHER VEHICLE TOTALING HER 2004 AVEO AND THEN WAS HIT FROM BEHIND AS WELL. THE AIRBAGS DID NOT DEPLOY AND DUE…
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CAR WAS TRAVELING AT APPROXIMATELY 40 KM\H WHEN A SUDDEN STOP OCCURRED IN TRAFFIC. MY WIFE WAS ABOUT TO CHANGE LANES AND WAS LOOKING IN HER BLIND SPOT AND WHEN SHE TURNED BACK SHE COULD NOT STOP IN TIME. SHE REAR-ENDED ANOTHER VEHICLE TOTALING HER 2004 AVEO AND THEN WAS HIT FROM BEHIND AS WELL. THE AIRBAGS DID NOT DEPLOY AND DUE TO THIS MY WIFE HAS BEEN IN PAIN WITH HER BACK AND NECK EVER SINCE. THIS OCCURRED IN ONTARIO CANADA. *TR
NHTSA ODI #10367196
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.