POWER STEERING MALFUNCTIONING. ENGINE WANTS TO STALL AND SHUT OFF. TRANSMISSION JUMPS WHEN PUT INTO GEAR, AUTOMATIC TRANSMISSION. INSTRUMENT PANEL GAUGES JUMPING. PARKING LIGHTS FLASHING. SHOWS LOW FUEL WHEN THERE IS GAS IN THE CAR. *TR
2005 Chevrolet Cobalt
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all Cobalt 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
1,407 reports with mileage · 242 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.
- Steering. Review the 1,143 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 323 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Power Train. Review the 99 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
1,649 reports2005 CHEVROLET COBALT. CONSUMER WRITES IN REGARDS TO VEHICLE LOST POWER WHILE DRIVING. *SMD THE CONSUMER WAITED SIX WEEKS FOR THE PART TO ARRIVE, TO REPLACE THE IGNITION SWITCH. AFTER THE CONSUMER RETRIEVED THE VEHICLE AND DROVE 5-6 MILES, THE VEHICLE LOST POWER AGAIN. APPARENTLY, THE BATTERY FAILED. *JB
TL* THE CONTACT OWNS A 2005 CHEVROLET COBALT. THE CONTACT STATED THAT THE POWER STEERING WARNING LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC, WHO WAS UNABLE TO DIAGNOSE THE FAILURE. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 140,000.
TL* THE CONTACT OWNS A 2005 CHEVROLET COBALT. WHILE DRIVING 45 MPH, THE VEHICLE STALLED AND SEVERAL WARNING INDICATORS ILLUMINATED ON THE INSTRUMENT PANEL. THE VEHICLE WAS ABLE TO BE RESTARTED AFTER THIRTY MINUTES AND RESUMED NORMAL OPERATION. THE FAILURE OCCURRED ON FIVE DIFFERENT OCCASIONS. THE DEALER STATED THAT THE CPU WAS …
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TL* THE CONTACT OWNS A 2005 CHEVROLET COBALT. WHILE DRIVING 45 MPH, THE VEHICLE STALLED AND SEVERAL WARNING INDICATORS ILLUMINATED ON THE INSTRUMENT PANEL. THE VEHICLE WAS ABLE TO BE RESTARTED AFTER THIRTY MINUTES AND RESUMED NORMAL OPERATION. THE FAILURE OCCURRED ON FIVE DIFFERENT OCCASIONS. THE DEALER STATED THAT THE CPU WAS FAULTY AND REPAIRED THE VEHICLE. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 14,500.
TL* THE CONTACT OWNS A 2005 CHEVROLET COBALT. THE CONTACT STATED THAT THE KEY FAILED TO RELEASE FROM THE IGNITION AFTER SEVERAL ATTEMPTS. THE CONTACT STATED THAT THE VEHICLE WAS PREVIOUSLY REPAIRED UNDER NHTSA CAMPAIGN ID NUMBER: 14E021000 (ELECTRICAL SYSTEM). THE VEHICLE WAS TAKEN BACK TO THE DEALER, WHO TOOK THE COMPONENTS APA…
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TL* THE CONTACT OWNS A 2005 CHEVROLET COBALT. THE CONTACT STATED THAT THE KEY FAILED TO RELEASE FROM THE IGNITION AFTER SEVERAL ATTEMPTS. THE CONTACT STATED THAT THE VEHICLE WAS PREVIOUSLY REPAIRED UNDER NHTSA CAMPAIGN ID NUMBER: 14E021000 (ELECTRICAL SYSTEM). THE VEHICLE WAS TAKEN BACK TO THE DEALER, WHO TOOK THE COMPONENTS APART AND INDICATED THAT A PART WAS MISSING. THE RECALL REPAIR WAS NOT REMEDIED CORRECTLY. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 59,651. UPDATED 9/12/14*CN THE CONSUMER STATED THAT THERE WAS NO PART MISSING. THE HOUSING CRACKED DURING REMOVAL OF CYLINDER. THE VEHICLE WAS REPAIRED. UPDATED 02/05/2015* JS
ON JUNE 18, 2014 WHILE DRIVING 45 MILES PER HOUR I SUDDENLY LOST POWER STEERING IN THE VEHICLE AND THE ENGINE KEPT CUTTING OUT LIKE IT WAS GOING TO SHUT OFF. I PULLED INTO A STORE PARKING LOT AND THE SHIFTER WOULD NOT WORK PROPERLY WHEN TRYING TO GET IT INTO PARK. POWER STEERING LIGHT, ENGINE LIGHT AND SEVERAL OTHER LIGHTS APP…
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ON JUNE 18, 2014 WHILE DRIVING 45 MILES PER HOUR I SUDDENLY LOST POWER STEERING IN THE VEHICLE AND THE ENGINE KEPT CUTTING OUT LIKE IT WAS GOING TO SHUT OFF. I PULLED INTO A STORE PARKING LOT AND THE SHIFTER WOULD NOT WORK PROPERLY WHEN TRYING TO GET IT INTO PARK. POWER STEERING LIGHT, ENGINE LIGHT AND SEVERAL OTHER LIGHTS APPEARED ON MY DASHBOARD. . I CALLED THE DEALERSHIP ON JUNE 18, 2014 TO NOTIFY THEM OF MY POWER STEERING GOING OUT AND THE OTHER ISSUES DESCRIBED ABOVE. THEY TOLD ME PARTS WERE STILL NOT AVAILABLE. I DID RECEIVE A CALL BACK THAT THEY DID IN FACT HAVE THE PART AND TO BRING IN THE VEHICLE ON JUNE 19, 2014. MY HUSBAND DROVE THE VEHICLE 35 MILES TO THE DEALERSHIP WITH NO POWER STEERING, THE ENGINE WANTED TO DIE EVERY TIME HE CAME TO A STOP AND ACTED ERRATICALLY THE WHOLE DRIVE THERE. ACCORDING TO THE INVOICE RECEIVED THE DEALERSHIP MILEAGE ON MY VEHICLE WAS 114, 340 AND THEY PERFORMED RECALL 10023 V220 REMOVED AND REPLACED POWER STEERING MOTOR WITH MOTOR KIT 1 19257875 MOTOR KIT. ON JUNE 20, 2014 THE CAR WAS DRIVEN 320 MILES. ON JUNE 21, 2014 I HAD NO POWER STEERING. ON JUNE 23, 2014 I HAD TO HAVE A WRECKER SERVICE TOW MY VEHICLE BACK TO THE DEALERSHIP.. ON JULY 18, 2014 I PICKED UP MY VEHICLE. ACCORDING TO THE INVOICE RECEIVED THE DEALER PERFORMED RECALL 13454 (F-CYLINDER KIT ), PERFORMED RECALL 14113 (REMOVED AND REPLACE IGNITION CYLINDER AND PROGRAMMED 2 NEW KEYS PER RECALL 14113). THE MILEAGE THEY SAY WAS ON MY VEHICLE ON THIS INVOICE DATED 7/18/14 WAS 114, 292. DON'T KNOW HOW MY MILEAGE WENT BACKWARDS??? ON JULY 28, 2014 DRIVING TO WORK AT 4:30 AM GOING 60 MPH MY POWER STEERING LIGHT COMES ON, THE ENGINE IS CUTTING OUT, THE DASHBOARD LIGHTS UP, THE SPEEDOMETER NEEDLE IS FLICKERING UNCONTROLLABLY AND I HAVE NO WHERE TO PULL OVER. THIS IS THE 3RD TIME POWER STEERING PROBLEM DUE TO GM RECALL. HELP!!! *TR
2005 CHEVROLET COBALT. CONSUMER WRITES IN REGARDS TO VEHICLE REPAIRS AND SEEKS REIMBURSEMENT. *SMD THE CONSUMER STATED HIS DAUGHTER WAS LEFT STRANDED ON FOUR OCCASIONS. *JB
2005 CHEVROLET COBALT. CONSUMER WRITES IN REGARDS TO POWER STEERING RECALL NOTICE. *SMD THE CONSUMER HAS SINCE TRADED THE VEHICLE. *JB
I WOULD LIKE TO START A PETITION FOR AN INVESTIGATION ON THE REPLACEMENT PARTS BEING USED FOR THE IGNITION SWITCH RECALL AND THE SOFTWARE THEY USE TO RE-PROGRAM OR RE-LEARN THE COMPUTER IN THE VEHICLES THAT HAVE BEEN RECALLED. THE REASON I AM REQUESTING THIS IS BECAUSE MY MOMS 2005 CHEVY COBALT WAS TAKEN IN FOR THIS RECALL REPLA…
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I WOULD LIKE TO START A PETITION FOR AN INVESTIGATION ON THE REPLACEMENT PARTS BEING USED FOR THE IGNITION SWITCH RECALL AND THE SOFTWARE THEY USE TO RE-PROGRAM OR RE-LEARN THE COMPUTER IN THE VEHICLES THAT HAVE BEEN RECALLED. THE REASON I AM REQUESTING THIS IS BECAUSE MY MOMS 2005 CHEVY COBALT WAS TAKEN IN FOR THIS RECALL REPLACEMENT AND WAS RUNNING FINE WHEN WE BROUGHT IT IN. GOT A CALL THAT THE CAR WAS READY TO BE PICKED UP 7 HOURS LATER. A COUPLE DAYS LATER I'M DRIVING THE CAR AROUND IT STARTED TO RUN TERRIBLE. THE CAR IDLED ERRATICALLY AND IT WOULD STALL EVERY TIME I STOPPED. NOW THE CAR STARTS AND DRIVES AWHILE BUT IF I SHUT IT OFF AND THEN START IT AGAIN THE ENGINE LIGHT STARTS BLINKING,IT BOGS DOWN AND HAVE NO POWER WHEN I ACCELERATE. I CAN SMELL GAS BUT THERE ARE NO LEAKS AND I ONLY SMELL THE GAS WHEN THE CAR STARTS TO DO THIS. I HAVE BEEN ON THE GM RECALL UPDATE WEBSITE AND HAVE READ ABOUT SIMILAR STORIES TO MINE SAYING THERE IS A DEFECT IN THE PARTS OR THERE'S A PROBLEM WITH THE RE-PROGRAMING. I THINK ONE OR BOTH OF THESE IS THE CAUSE OF MY PROBLEM. SO COULD YOU PLEASE LOOK INTO THIS ASAP BECAUSE IT IS A SAFETY HAZARD. THANK YOU
TL* THE CONTACT OWNS A 2005 CHEVROLET COBALT. THE CONTACT STATED THAT THE LOCK MECHANISM FAILED. THE CONTACT MENTIONED THAT THE DOORS WERE UNABLE TO BE UNLOCKED USING THE ELECTRONIC KEY FOB OR MANUALLY. IN ADDITION, THE KEY COULD BE REMOVED FROM THE IGNITION WHEN THE VEHICLE WAS OUT OF PARK. THE VEHICLE WAS REPAIRED UNDER NHTSA …
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TL* THE CONTACT OWNS A 2005 CHEVROLET COBALT. THE CONTACT STATED THAT THE LOCK MECHANISM FAILED. THE CONTACT MENTIONED THAT THE DOORS WERE UNABLE TO BE UNLOCKED USING THE ELECTRONIC KEY FOB OR MANUALLY. IN ADDITION, THE KEY COULD BE REMOVED FROM THE IGNITION WHEN THE VEHICLE WAS OUT OF PARK. THE VEHICLE WAS REPAIRED UNDER NHTSA CAMPAIGN ID NUMBER: 14V171000(ELECTRICAL SYSTEM) AND NHTSA CAMPAIGN ID NUMBER: 14V047000(AIR BAGS, ELECTRICAL SYSTEM)HOWEVER, THE FAILURES PERSISTED. ADDITIONALLY, THE CONTACT STATED THAT HE ALSO HAD TO REPLACE THE COMPUTER MOTOR AND TWO BODY CONTROL MODULES. THE MANUFACTURER WAS NOTIFIED OF THE FAILURES. THE FAILURE MILEAGE WAS 91,496.
Official recalls
514V171000 · Electrical System:ignition
Apr 10, 2014
General Motors LLC (GM) is recalling certain model year 2005-2010 Chevrolet Cobalt, 2006-2011 Chevrolet HHR, 2007-2010 Pontiac G5, 2006-2010 Pontiac Solstice, 2003-2007 Saturn Ion, and 2007-2010 Saturn Sky vehicles. In the affected vehicles, the key can be removed from the ignition when the ignition is not in the "Off" position.
Consequence & remedy
Consequence: If the key can be removed from the ignition when the ignition is not in the "off" position, the vehicle could roll away: (a) for an automatic transmission, if the transmission is not in the "Park" position; or (b) for a manual transmission, if the parking brake is not engaged and the transmission is not in the "Reverse" position. This potential for rollaway increases the risk for a crash and occupant or pedestrian injuries.
Remedy: General Motors will notify owners, and for vehicles that were built with the defective ignition cylinder and have not previously had the ignition cylinder replaced with the redesigned part, dealers will replace the ignition cylinder and cut and, if necessary, re-learn two ignition/door keys for each vehicle. For vehicles that were built with the redesigned ignition cylinder or had the ignition cylinder replaced with the redesigned part, dealers will cut and, if necessary, re-learn two ignition/door keys for each vehicle. The recall began on April 18, 2014. Chevrolet owners may contact General Motors at 1-800-222-1020, Pontiac owners at 1-800-762-2737, and Saturn owners at 1-800-553-6000. General Motors' number for this recall is 14113 for the ignition lock cylinder and key replacement, and 14133 for only key replacements. Note: Until a vehicle has been remedied, owners and operators are advised that when exiting, to be sure that the vehicle is in "Park," or in the case of a manual transmission, that the vehicle is in the "Reverse" position and the parking brake is engaged.
14V047000 · Air Bags; Electrical System:ignition:switch
Feb 10, 2014
This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring. General Motors LLC (GM) notified the agency on February 10, 2014 that they are recalling 619,122 model year 2005-2007 Chevrolet Cobalt, and 2007 Pontiac G5 vehicles. On February 25, 2014, GM increased the recall to include an additional 748,024 model year 2006-2007 Chevrolet HHR and Pontiac Solstice vehicles and 2003-2007 Saturn Ion vehicles and 2007 Saturn Sky vehicles. In these models, the weight on the key ring and/or road conditions or some other jarring event may cause the ignition switch to move out of the run position, turning off the engine. On March 27, 2014, GM notified the agency that the defective ignition switches may have been used as service replacement parts on other vehicles, and as a result GM will be recalling certain model year 2008-2010 Chevrolet Cobalt, Saturn Sky, and Pontiac G5 and Solstice, and 2008-2011 Chevrolet HHR vehicles. The part numbers for the service parts are 10392423 (a/k/a ACDelco D1461F), 10392737, 15857948, 15854953, 15896640, and 25846762. This expansion represents an additional 823,788 vehicles.
Consequence & remedy
Consequence: If the key is not in the run position, the air bags may not deploy if the vehicle is involved in a crash, increasing the risk of injury.
Remedy: GM will notify owners, and dealers will replace the ignition switch, free of charge. An interim notification was issued to owners of 2007 and earlier models on March 10, 2014, informing them of the safety defect. Owners of 2008 and later vehicles will be mailed an interim letter on April 21, 2014. All affected owners will receive another letter once parts are available. The recall began on April 18, 2014. Owners may contact Chevrolet at 1-800-222-1020, Pontiac at 1-800-762-2737 or Saturn at 1-800-553-6000. GM's number for the initial recall is 13454 and 14063 for the expansion. GMs recall number for the vehicles that may have received the replacement parts is 14092. Note: Until the recall repairs have been performed, it is very important that customers remove all items from their key rings, leaving only the vehicle key. The key fob (if applicable), should also be removed from the key ring. Always wear your seatbelt.
Additional source detail variants (2)
Air Bags
This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring. General Motors LLC (GM) notified the agency on February 10, 2014 that they are recalling 619,122 model year 2005-2007 Chevrolet Cobalt, and 2007 Pontiac G5 vehicles. On February 25, 2014, GM increased the recall to include an additional 748,024 model year 2006-2007 Chevrolet HHR and Pontiac Solstice vehicles and 2003-2007 Saturn Ion vehicles and 2007 Saturn Sky vehicles. In these models, the weight on the key ring and/or road conditions or some other jarring event may cause the ignition switch to move out of the run position, turning off the engine. On March 27, 2014, GM notified the agency that the defective ignition switches may have been used as service replacement parts on other vehicles, and as a result GM will be recalling certain model year 2008-2010 Chevrolet Cobalt, Saturn Sky, and Pontiac G5 and Solstice, and 2008-2011 Chevrolet HHR vehicles. The part numbers for the service parts are 10392423 (a/k/a ACDelco D1461F), 10392737, 15857948, 15854953, 15896640, and 25846762. This expansion represents an additional 823,788 vehicles.
Consequence: If the key is not in the run position, the air bags may not deploy if the vehicle is involved in a crash, increasing the risk of injury.
Remedy: GM will notify owners, and dealers will replace the ignition switch, free of charge. An interim notification was issued to owners of 2007 and earlier models on March 10, 2014, informing them of the safety defect. Owners of 2008 and later vehicles will be mailed an interim letter on April 21, 2014. All affected owners will receive another letter once parts are available. The recall began on April 18, 2014. Owners may contact Chevrolet at 1-800-222-1020, Pontiac at 1-800-762-2737 or Saturn at 1-800-553-6000. GM's number for the initial recall is 13454 and 14063 for the expansion. GMs recall number for the vehicles that may have received the replacement parts is 14092. Note: Until the recall repairs have been performed, it is very important that customers remove all items from their key rings, leaving only the vehicle key. The key fob (if applicable), should also be removed from the key ring. Always wear your seatbelt.
Electrical System:ignition:switch
This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring. General Motors LLC (GM) notified the agency on February 10, 2014 that they are recalling 619,122 model year 2005-2007 Chevrolet Cobalt, and 2007 Pontiac G5 vehicles. On February 25, 2014, GM increased the recall to include an additional 748,024 model year 2006-2007 Chevrolet HHR and Pontiac Solstice vehicles and 2003-2007 Saturn Ion vehicles and 2007 Saturn Sky vehicles. In these models, the weight on the key ring and/or road conditions or some other jarring event may cause the ignition switch to move out of the run position, turning off the engine. On March 27, 2014, GM notified the agency that the defective ignition switches may have been used as service replacement parts on other vehicles, and as a result GM will be recalling certain model year 2008-2010 Chevrolet Cobalt, Saturn Sky, and Pontiac G5 and Solstice, and 2008-2011 Chevrolet HHR vehicles. The part numbers for the service parts are 10392423 (a/k/a ACDelco D1461F), 10392737, 15857948, 15854953, 15896640, and 25846762. This expansion represents an additional 823,788 vehicles.
Consequence: If the key is not in the run position, the air bags may not deploy if the vehicle is involved in a crash, increasing the risk of injury.
Remedy: GM will notify owners, and dealers will replace the ignition switch, free of charge. An interim notification was issued to owners of 2007 and earlier models on March 10, 2014, informing them of the safety defect. Owners of 2008 and later vehicles will be mailed an interim letter on April 21, 2014. All affected owners will receive another letter once parts are available. The recall began on April 18, 2014. Owners may contact Chevrolet at 1-800-222-1020, Pontiac at 1-800-762-2737 or Saturn at 1-800-553-6000. GM's number for the initial recall is 13454 and 14063 for the expansion. GMs recall number for the vehicles that may have received the replacement parts is 14092. Note: Until the recall repairs have been performed, it is very important that customers remove all items from their key rings, leaving only the vehicle key. The key fob (if applicable), should also be removed from the key ring. Always wear your seatbelt.
10V073000 · Steering:electric Power Assist System
Mar 3, 2010
GENERAL MOTORS IS RECALLING CERTAIN MODEL YEAR 2005-2010 CHEVROLET COBALT AND MODEL YEAR 2007-2010 PONTIAC G5 VEHICLES EQUIPPED WITH ELECTRIC POWER STEERING. THE DRIVER MAY EXPERIENCE A SUDDEN LOSS OF POWER STEERING ASSIST THAT COULD OCCUR AT ANY TIME WHILE DRIVING.
Consequence & remedy
Consequence: IF POWER STEERING ASSIST IS LOST, IT WOULD REQUIRE GREATER DRIVER EFFORT AT LOW VEHICLE SPEEDS, INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL REPLACE THE ELECTRIC POWER STEERING MOTOR FREE OF CHARGE. OWNERS ARE BEING NOTIFIED ON A ROLLING BASIS BETWEEN MARCH 29 THROUGH NOVEMBER 2010. A COPY OF THE MAILING SCHEDULE IS LOCATED IN THE RECALL FILE. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438 AND PONTIAC AT 1-800-620-7668 OR AT THE OWNER CENTER AT WWW.GMOWNERCENTER.COM.
07V014000 · Structure
Jan 18, 2007
CERTAIN PASSENGER VEHICLES NOT EQUIPPED WITH OPTIONAL ROOF-MOUNTED SIDE IMPACT AIR BAGS FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 201, 'OCCUPANT PROTECTION IN INTERIOR IMPACT.'
Consequence & remedy
Consequence: IN A CRASH, HEAD IMPACT PROTECTION MAY BE INADEQUATE.
Remedy: DEALERS WILL INSTALL ENERGY ABSORBING PLASTIC TO THE HEADLINER TRIM TO REDUCE THE SEVERITY OF HEAD IMPACTS IN A CRASH. THE RECALL BEGAN ON MARCH 21, 2007. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438.
04V560000 · Exterior Lighting:headlights
Nov 22, 2004
CERTAIN PASSENGER VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THE BULB SHIELDS INSIDE OF THE HEADLAMPS CAN LOOSEN DUE TO VIBRATION.
Consequence & remedy
Consequence: THE BULB SHIELD CAN LOOSEN OR BREAK BECAUSE OF VIBRATION. IF THIS OCCURRED ON A HEADLAMP INSTALLED IN A VEHICLE, ONCOMING DRIVERS MAY NOTICE ADDITIONAL GLARE, INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL INSTALL TWO NEW HEADLAMP ASSEMBLIES. THE RECALL BEGAN ON NOVEMBER 17, 2004. OWNERS SHOULD CONTACT CHEVROLET AT 1-800-630-2438.
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
1PE10005 · Electric Power Steering Failure
Opened Jan 27, 2010 · Closed Jul 19, 2010
Status: closed (inferred from source dates) · Steering:electric Power Assist System
In a March 1, 2010 letter, General Motors Corporation (GM) provided a defect information report to NHTSA regarding a problem that could result in sudden loss of power steering assist in certain model year (MY) 2005 through 2010 Chevrolet Cobalt and MY 2007 through 2010 Pontiac G5 vehicles equipped with electric power steering (EPS).The letter indicates that the loss of steering assist could occur at any time while driving and that, once assist is lost, a message is displayed on the Driver Information Center (DIC) and a chime sounds to inform the driver.The letter further states that steering control is maintained in manual mode, but would require greater driver effort at low vehicle speeds.In the next ignition cycle, power assist is typically regained and the DIC message is no longer displayed.GM's letter identifies the root cause of the EPS failure as the EPS motor and indicates that production of a new motor started in December 2009.GM's recall repair procedure instructs dealers to replace the EPS motor in all recalled vehicles. ODI's analysis of all information available related to sudden loss of EPS assist while driving in the MY 2005 through 2009 Chevrolet Cobalt vehicles shows current complaint and warranty rates of 323/100,000 vehicles and 0.4% respectively.In response to ODI's request for information, GM identified 81 complaints where a crash was claimed that may be related to loss of EPS assist.ODI's analysis of all crash claims was based on verifiable factors such as; whether a loss of EPS was indicated at the time of the crash by a chime or malfunction indicator lamp or if a EPS related component malfunction was identified after the crash occurred.With this method ODI identified 36 possible crashes related to EPS failure.GM assessed crash claims based on the available facts and excluded crash claims that indicated that the vehicle was travelling at speeds in the range of 30 mph or greater.GM said that it believes if power assist is lost while a vehicle is moving at speeds in the range of 30 mph or greater there is a small difference in steering efforts perceived in subjective evaluations at those speeds and it is unlikely to lead to loss of vehicle control. Based on GM's safety recall, this investigation is closed.
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