IllustrationTHE PLASTIC THERMOSTAT HOUSING COMPLETELY SNAPPED WHILE DRIVING ONLY 35 MILES PER HOUR. THERE ARE MULITPLE CHEVROLET AVEO OWNERS THAT HAVE A CAR BETWEEN THE YEARS 04-06 THAT HAVE HAD THE SAME PROBLEM. NOT ONLY IS THIS A SAFTY HAZARD, BUT A REALITIVE COSTLY FIX. *TR
2004 Chevrolet Aveo
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2004 Chevrolet Aveo do not stand out strongly from the model-year median of 169.
About this comparison →How this year compares
Owner complaints by model year
Compare all Aveo years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
380–25K
2025–50K
5250–75K
2575–100K
22100–150K
3150K+
160 reports with mileage · 46 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Engine And Engine Cooling. Review the 62 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 37 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Air Bags. Review the 23 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
23 crash reports9 fire reports17 injury reports
Structure complaints
6 reportsI HAVE A 2004 CHEVY AVEO THAT ONLY HAS 65K MILES ON IT AND GETS REGULAR OIL CHANGES. I WENT IN AND HAD MY TRANSMISSION FLUID FLUSHED AND WAS TOLD THE CAR LOOKED GREAT. DROVE A FEW OTHER PLACES, AND WAS ON A STEEP HILL, TURNING AROUND (AS I HAVE DONE MANY TIMES BEFORE), AND ALL OF A SUDDEN SMOKE WAS POURING OUT OF MY ENGINE. I PA…
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I HAVE A 2004 CHEVY AVEO THAT ONLY HAS 65K MILES ON IT AND GETS REGULAR OIL CHANGES. I WENT IN AND HAD MY TRANSMISSION FLUID FLUSHED AND WAS TOLD THE CAR LOOKED GREAT. DROVE A FEW OTHER PLACES, AND WAS ON A STEEP HILL, TURNING AROUND (AS I HAVE DONE MANY TIMES BEFORE), AND ALL OF A SUDDEN SMOKE WAS POURING OUT OF MY ENGINE. I PARKED IMMEDIATELY. MY THERMOSTAT HOUSING PIECE (PLASTIC) HAD CRACKED IN HALF AND WAS SPEWING ANTIFREEZE. IN THE TWO SECONDS THE CAR WAS ON, I LOST HALF MY ANTI-FREEZE AND MY ENGINE COMPARTMENT IS COVERED IN ANTI-FREEZE. FURTHER, THE PART IS HARD TO FIND AND WILL TAKE SEVERAL DAYS FOR A REPLACEMENT. THIS PART BROKE OUT OF THE BLUE, IN THE MIDDLE OF ROUTINE DRIVING. THERE'S NO WAY TO DRIVE IT UNTIL IT'S FIXED - THE CAR WILL HAVE TO BE TOWED. I HEAR THAT THE PART IS NOW BEING MADE IN ALUMINUM AND THAT THIS IS A COMMON PROBLEM WITH THIS CAR (EVERY 50-70K THIS PIECE JUST INEXPLICABLY CRACKS). I FIRMLY BELIEVE THAT THIS SHOULD BE PART OF A STANDARD RECALL. HAD THIS PIECE BROKE AT ANY OTHER TIME (SUCH AS FIVE MINUTES PRIOR, WHEN I WAS ON THE FREEWAY) THERE WOULD HAVE BEEN DIRE CONSEQUENCES. FURTHER, HAD I ATTEMPTED TO DRIVE THE CAR ANY FURTHER, I COULD HAVE HAD AN ENGINE FIRE OR SEVERAL OTHER PROBLEMS. THIS HAS RESULTED IN THREE DAYS OF TIME AND ENERGY TO GET THIS REPAIRED (HOPEFULLY TO BE COMPLETED TOMORROW). THIS PLASTIC PIECE IS NOTHING BUT A SAFETY HAZARD AND I CONSIDER MYSELF LUCKY TO HAVE ESCAPED IN ONE PIECE. I'M YET TO FIND OUT WHAT KIND OF DAMAGE THE ANTI-FREEZE WILL DO TO MY CAR IN THE TIME IT TAKES TO GET THE CAR INTO THE SHOP TO BE FIXED UP. *TR
THERE ARE NO EVENTS LEADING UP TO THIS PROBLEM. THE LOCK ON THE DRIVER'S SIDE DOOR HAS FALLEN INTO THE DOOR. THIS MAKES THE DOOR IMPOSSIBLE TO LOCK OR UNLOCK FROM THE OUTSIDE. WHEN THE WINDOW IS ROLLED DOWN THE LOCK ALSO LOCKS. THE PROBLEM HAS NOT YET BEEN SOLVED. *TR
TL*-THE CONTACT OWNS A 2004 CHEVROLET AVEO AND STATED THAT SINCE SHE PURCHASED THE VEHICLE THE PASSENGER'S SIDE SEAT BELTS NEVER LOCKED CORRECTLY IN PLACE. SHE TOOK THE VEHICLE TO THE DEALER, AND THEY REPLACED THE SEAT BELT, BUT SHE BELIEVED THAT THEY SWITCHED IT FROM THE FRONT TO THE BACK. CURRENTLY, THE SEAT BELT HAS BEEN L…
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TL*-THE CONTACT OWNS A 2004 CHEVROLET AVEO AND STATED THAT SINCE SHE PURCHASED THE VEHICLE THE PASSENGER'S SIDE SEAT BELTS NEVER LOCKED CORRECTLY IN PLACE. SHE TOOK THE VEHICLE TO THE DEALER, AND THEY REPLACED THE SEAT BELT, BUT SHE BELIEVED THAT THEY SWITCHED IT FROM THE FRONT TO THE BACK. CURRENTLY, THE SEAT BELT HAS BEEN LOCKING WHEN ANYONE SAT IN THE BACK. ALSO, THE DOME LIGHTS IWERE CONSTANTLY BURNING OUT. THIS HAD OCCURRED ABOUT THREE OR FOUR TIMES. IN ADDITION, THE CLOCK DID NOT WORK WHENEVER SHE SET THE TIME, IT WOULD CHANGE ON ITS OWN ACCORD. SIMILARLY, THE KEY LOCK ON THE DRIVER'S SIDE FELL THROUGH THE DOOR PANEL. THE DEALER REPAIRED AND PAINTED THE DOOR THE WRONG COLOR, AND THEY PAINTED OVER THE DOOR HANDLE. JUST LAST WEEK FINALLY, THE TENSION PULLEY FELL OFF WHILE SHE WAS DRIVING ON THE FREEWAY. THEY TOLD HER THIS WAS NORMAL WEAR AND TEAR ON THE VEHICLE AND REFUSED TO MAKE FURTHER REPAIRS. THE FAILURE MILEAGE WAS 32, AND THE CURRENT MILEAGE WAS 60,750.*AK
MY BROTHER DIED WHEN HIS 2004 AVEO CRASHED SIDEWAYS INTO A TREE. TRAVELING APPROXIMATELY 60-70 MPH ON I95 IN FL. TROOPERS SAID HE WAS DOING SPEED LIMIT AND HIS CAR HYDROPLANED CAUSING THE VEHICLE TO TRAVEL OFF THE HIGHWAY AND INTO A SMALL PALM TREE. HIS FRIEND WAS EJECTED THROUGH THE FRONT WINDSHIELD ACROSS THE STEERING WHEEL FR…
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MY BROTHER DIED WHEN HIS 2004 AVEO CRASHED SIDEWAYS INTO A TREE. TRAVELING APPROXIMATELY 60-70 MPH ON I95 IN FL. TROOPERS SAID HE WAS DOING SPEED LIMIT AND HIS CAR HYDROPLANED CAUSING THE VEHICLE TO TRAVEL OFF THE HIGHWAY AND INTO A SMALL PALM TREE. HIS FRIEND WAS EJECTED THROUGH THE FRONT WINDSHIELD ACROSS THE STEERING WHEEL FROM THE PASSENGER SEAT. THIS CAR IS UNSAFE. VIDEO @ WWW.THIBEDEAURESEARCH.COM. *NM
2004 CHEVY AVEO. WHEN DRIVING VEHICLE IN WINDY CONDITION OR NEAR LARGE VEHICLE(INCLUDING PICKUP TRUCKS AND SUVS) THE VEHICLE'S FRONT END IS BLOWN VERY EASILY CREATING DANGEROUS SWERVING AND FRONT END MOVEMENT. I FEEL THE VEHICLE IS VERY UNSAFE TO DRIVE AND NEEDS SAFETY TESTING DONE. ALSO, FRONT END PULLS HARD TO THE LEFT IN ALL …
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2004 CHEVY AVEO. WHEN DRIVING VEHICLE IN WINDY CONDITION OR NEAR LARGE VEHICLE(INCLUDING PICKUP TRUCKS AND SUVS) THE VEHICLE'S FRONT END IS BLOWN VERY EASILY CREATING DANGEROUS SWERVING AND FRONT END MOVEMENT. I FEEL THE VEHICLE IS VERY UNSAFE TO DRIVE AND NEEDS SAFETY TESTING DONE. ALSO, FRONT END PULLS HARD TO THE LEFT IN ALL DRIVING CONDITIONS. NEW TIRES HAVE BEEN ADDED BUT DID NOT SOLVE PROBLEM. FRONT END ALSO HAS BAD BUSHINGS OR STRUTS. CAR CREAKS WHEN GOING OVER BUMPS OR WHEN PUSHING UP AND DOWN ON THE FRONT END. *JB
Official recalls
214V261000 · Exterior Lighting:headlights
May 19, 2014
General Motors is recalling certain model year 2004-2008 Chevrolet Aveo vehicles equipped with daytime running lights (DRL). In the affected vehicles, there may be heat generated within the DRL module located in the center console in the instrument panel, which could melt the DRL module.
Consequence & remedy
Consequence: If the DRL module melts due to the heat generation, it could cause a vehicle fire.
Remedy: GM will notify owners, and dealers will install a revised DRL module, inspect the wiring connector for heat damage, and clean the DRL circuit grounds. Owners were sent interim notices on August 14, 2014. The recall began on February 6, 2015. Owners may contact General Motors customer service at 1-800-222-1020 (Chevrolet). General Motors recall number for this campaign is 14236.
04V407000 · Seat Belts:rear/other
Aug 17, 2004
ON CERTAIN PASSENGER VEHICLES, THE REAR SAFETY BELT CAN BECOME TWISTED.
Consequence & remedy
Consequence: IF THIS OCCURS THE SAFETY BELT RETRACTOR MAY LOCK IN POSITION SO THAT THE BELT CANNOT BE USED. IN THE EVENT OF A VEHICLE CRASH, PERSONAL INJURY TO THE SEAT OCCUPANT COULD OCCUR.
Remedy: DEALERS WILL INSTALL A SAFETY BELT WEBBING GUIDE TO PREVENT THE BELT FROM TWISTING. THE RECALL BEGAN ON OCTOBER 15, 2004. OWNERS SHOULD CONTACT CHEVROLET AT 1-800-630-2438. VEHICLE OWNERS LOCATED IN GUAM SHOULD CONTACT GM CUSTOMER ASSISTANCE AT 1-671-648-8453.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
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.