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2010 Chevrolet Cobalt

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

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When problems were reported

Mileage at the reported incident

454 reports with mileage · 120 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 239 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 125 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Fuel/propulsion System. Review the 101 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

46 crash reports7 fire reports26 injury reports

What owners actually said

574 reports
72,000 miles · May 29, 2016
Seat BeltsSteeringVehicle Speed Control

1. CRUISE CONTROL ENGAGES ON IT'S OWN AND LUNGES FORWARD, EVEN IN TRAFFIC AT 10 MPH SPEED. 2. SEAT BELT ON DRIVERS SEAT, WHILE STATIONARY,DOESN'T RELEASE EASILY AND TAKES ABOUT 30-45 SECONDS AT TIMES TO RELEASE. 3.WHILE ON THE ROAD DRIVING, THE CAR DISPLAYED ALL THE INFORMATION ON THE DASH, SUCH AS; TIRE PRESSURE, OIL LIFE, MI…

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1. CRUISE CONTROL ENGAGES ON IT'S OWN AND LUNGES FORWARD, EVEN IN TRAFFIC AT 10 MPH SPEED. 2. SEAT BELT ON DRIVERS SEAT, WHILE STATIONARY,DOESN'T RELEASE EASILY AND TAKES ABOUT 30-45 SECONDS AT TIMES TO RELEASE. 3.WHILE ON THE ROAD DRIVING, THE CAR DISPLAYED ALL THE INFORMATION ON THE DASH, SUCH AS; TIRE PRESSURE, OIL LIFE, MILEAGE, ETC., THEN THE CAR'S SPEED REDUCES AND IT FLASHES WORDS "POWER STEERING" AND THEN THE CAR DIED IN TRAFFIC AND I WAS ALMOST HIT FROM BEHIND BEFORE I COULD GET THE CAR OFF THE ROAD. I HAD TO CALL A TOW TRUCK AND BE TAKEN TO CHEVY DEALER AND THEY FOUND NOTHING WRONG. THIS HAS HAPPENED AGAIN TODAY, 5/29/2016 AND I HAD TO LEAVE MY CAR IN STORE PARKING LOT FOR FOUR HOURS AND THEN IT STARTED, DROVE 5 MILES HOME AND WENT OUT AGAIN RIGHT BEFORE I PULLED INTO DRIVEWAY. 4. WHILE DRIVING ON THE FREEWAY, I ENGAGED THE BRAKES AND THEY BARELY STOPPED ME AND BRAKES PADS ARE GOOD ON CAR.

NHTSA ODI #10871388

100,000 miles · May 16, 2016
Seat Belts

TL* THE CONTACT OWNS A 2010 CHEVROLET COBALT. THE CONTACT STATED THAT THE FRONT PASSENGER SIDE SEAT BELT WAS LOCKED AND COULD NO LONGER BE USED. THE DEALER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 100,000.

NHTSA ODI #10865195

140,000 miles · May 15, 2016
Unknown Or Other

WHILE DRIVING AT 55MPH ON CA HWY 111, THE ENGINE JUST SHUT OFF. I WAS IN BUSY FAST MOVING TRAFFIC. EXTREMELY DANGEROUS. I HAD NOT CHANGED ANYTHING NOR DID I HAVE MORE THAN A SINGLE KEY ON THE KEY RING.

NHTSA ODI #10865004

94,000 miles · May 6, 2016
Unknown Or Other

THE DRIVER'S DOOR SPEAKER HAS STOPPED WORKING. THIS APPEARS TO BE A COMMON PROBLEM REPORTED ON CHEVY FORUMS FOR ALL MODEL YEAR COBALTS. THIS PROBLEM CREATES SAFETY CONCERNS AS ALL VEHICLE WARNING CHIMES AND SOUNDS ARE DIRECTED TO THE SPEAKER ON THIS DOOR AND ARE NOW NON-FUNCTIONAL. PARTICULAR CONCERN IS THAT THE TURN SIGNAL M…

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THE DRIVER'S DOOR SPEAKER HAS STOPPED WORKING. THIS APPEARS TO BE A COMMON PROBLEM REPORTED ON CHEVY FORUMS FOR ALL MODEL YEAR COBALTS. THIS PROBLEM CREATES SAFETY CONCERNS AS ALL VEHICLE WARNING CHIMES AND SOUNDS ARE DIRECTED TO THE SPEAKER ON THIS DOOR AND ARE NOW NON-FUNCTIONAL. PARTICULAR CONCERN IS THAT THE TURN SIGNAL MAKE NO SOUND WHEN ACTIVATED. THIS CAN LEAD TO AN ACCIDENT WHEN NO WARNING SOUND IS GENERATED WHEN A DRIVER UNINTENTIONALLY LEAVES A TURN SIGNAL ACTIVATED. THIS WAS REPORT TO CHEVY (REF. 8-2076604032), BUT IT DOES NOT APPEAR THEY WILL BE ISSUING A RECALL.

NHTSA ODI #10863659

Mileage unknown · May 4, 2016
Air Bags

TAMARA RECALL THE " SERVICE AIR BAG LIGHT " CAME ON AND IS STILL ON.

NHTSA ODI #10863213

Mileage unknown · Apr 30, 2016
Unknown Or Other

WHEN I GOT TO RED LIGHT TONIGHT 4/29/2016, CAR STARTED JERKING AS IF IT WILL CUT OFF. SCARY DONT KNOW WHAT TO DO.DONT HAVE MONEY FOR EXPENSIVE REPAIRS. HELP.

NHTSA ODI #10862291

106,000 miles · Apr 28, 2016
Steering

ON 4 OCCASIONS THE STEERING STOPPED WORKING AND LOCKED UP. THREE OF THE FOUR TIMES WAS WHEN VEHICLE WAS MOVING IN A BUSY SHOPPING AREA. IN ORDER TO REGAIN STEERING THE CAR WOULD HAVE TO BE STOPPED SHUT OFF AND RESTARTED. AFTER EACH INCIDENT THE DEALERSHIP WAS NOTIFIED AND VEHICLE WAS BROUGHT IN. THE STEERING COLUMN WAS REPLACED…

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ON 4 OCCASIONS THE STEERING STOPPED WORKING AND LOCKED UP. THREE OF THE FOUR TIMES WAS WHEN VEHICLE WAS MOVING IN A BUSY SHOPPING AREA. IN ORDER TO REGAIN STEERING THE CAR WOULD HAVE TO BE STOPPED SHUT OFF AND RESTARTED. AFTER EACH INCIDENT THE DEALERSHIP WAS NOTIFIED AND VEHICLE WAS BROUGHT IN. THE STEERING COLUMN WAS REPLACED AND CAR RETURNED TO US. AT THE PRESENT TIME THE CAR IS AT DEALERSHIP FOR THE SAME ISSUE THE STEERING LOCKING UP WHILE MOVING. THE CAR REMAINS AT DEALERSHIP AND WE NOTIFIED GM OF THE SITUATION WE RECEIVED A CASE NUMBER, SENIOR ADVISOR AND WERE TOLD TO KEEP LENDER AND THEY WOULD BE REACHING OUT TO DEALERSHIP. AS OF THIS TIME THE DEALERSHIP HAS NOT RESPONDED TO GM EMAIL AND WE HAVE NOT HEARD FROM DEALERSHIP OR GM ABOUT THE STATUS OF THE CAR. WE HAVE EXPERIENCED THIS VERY DANGEROUS AND STRESSFUL ISSUE SEVERAL TIMES AND DO NOT BELIEVE THIS VEHICLE IS SAFE AND NO LONGER WANT OUR LIVES PUT IN DANGER.

NHTSA ODI #10862068

90,000 miles · Apr 7, 2016
SteeringCrash

TL* THE CONTACT OWNS A 2010 CHEVROLET COBALT. WHILE DRIVING APPROXIMATELY 40 MPH, THE POWER STEERING SUDDENLY MALFUNCTIONED AND CAUSED THE STEERING WHEEL TO BECOME VERY DIFFICULT TO TURN. THE DRIVER LOST CONTROL AND CRASHED INTO A POLE. THERE WERE NO INJURIES. A POLICE REPORT WAS FILED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACT…

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TL* THE CONTACT OWNS A 2010 CHEVROLET COBALT. WHILE DRIVING APPROXIMATELY 40 MPH, THE POWER STEERING SUDDENLY MALFUNCTIONED AND CAUSED THE STEERING WHEEL TO BECOME VERY DIFFICULT TO TURN. THE DRIVER LOST CONTROL AND CRASHED INTO A POLE. THERE WERE NO INJURIES. A POLICE REPORT WAS FILED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 90,000.

NHTSA ODI #10854083

36,500 miles · Mar 24, 2016
Electrical SystemExterior Lighting

IN THE FALL OF 2015 I NOTICED THAT THERE WAS NO TURN SIGNAL SOUND INDICATING THE TURN SIGNAL WAS IN USE. AT THE SAME TIME I ALSO NOTICED THAT ALL OF THE WARNING INDICATOR SOUNDS WERE ALSO NOT WORKING (SET BELT, DOOR OPEN WITH KEY IN, LOW TIRE PRESSURE, ECT) NONE OF THE WARNING SOUNDS ARE NOW WORKING. IT SEEMS THAT THE LEFT FRONT…

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IN THE FALL OF 2015 I NOTICED THAT THERE WAS NO TURN SIGNAL SOUND INDICATING THE TURN SIGNAL WAS IN USE. AT THE SAME TIME I ALSO NOTICED THAT ALL OF THE WARNING INDICATOR SOUNDS WERE ALSO NOT WORKING (SET BELT, DOOR OPEN WITH KEY IN, LOW TIRE PRESSURE, ECT) NONE OF THE WARNING SOUNDS ARE NOW WORKING. IT SEEMS THAT THE LEFT FRONT SPEAKER IS USED FOR THE TRANSMITTING OF THE WARNING SOUNDS THUS THERE IS NO SOUND FROM THE LEFT SPEAKER. NONE THE LESS I FEEL THAT WITH THE WARNING SOUNDS NOT WORKING THIS IS A SAFETY ISSUE.

NHTSA ODI #10851410

Mileage unknown · Mar 21, 2016
EngineFuel/propulsion SystemService Brakes

REAR BRAKES MAKING LOTS OF NOISE, AND ARE CRAP. THIS CAR SHOULD HAVE ALOT MORE RECALLS. STOP LETTING GM SCREW US HARD WORKING PEOPLE! MY CAR IS MOVING WHEN I HEAR THE NOISES, MY BRAKE PADS ARE NEW SO THIS IS NOT THE PROBLEM.

NHTSA ODI #10850909

Official recalls

5

15V500000 · Air Bags:side/window

Aug 10, 2015

General Motors LLC (GM) is recalling certain model year 2010 Chevrolet Cobalt vehicles manufactured January 4, 2010, to June 23, 2010. The affected vehicles may be equipped with an improperly routed Side-Impact Sensor (SIS) wiring harness in the driver side front door. The misrouted wiring harness could cause an electrical short that disables the driver side curtain air bag.

Consequence & remedy

Consequence: A disabled driver side roof-rail air bag will not deploy in the event of a crash necessitating deployment of that air bag, increasing the risk of injury to the driver.

Remedy: GM will notify owners, and dealers will inspect the sensor's wiring in the driver's door and make repairs as necessary, free of charge. The recall began on September 8, 2015. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is 15075.

14V171000 · 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.

14V153000 · Steering:electric Power Assist System

Mar 31, 2014

General Motors LLC (GM) is recalling certain model year 2004-2006 and 2008-2009 Chevrolet Malibu, 2004-2006 Malibu Maxx, 2009-2010 HHR (non-turbo), 2010 Cobalt, 2008-2009 Saturn Aura and 2004-2007 Ion, and 2005-2009 Pontiac G6. In the affected vehicles, there may be a sudden loss of electric power steering (EPS) assist that could occur at any time while driving.

Consequence & remedy

Consequence: If power steering assist is lost, greater driver effort would be required to steer the vehicle at low speeds, increasing the risk of a crash.

Remedy: GM will notify owners, and dealers will perform one of four bulletins. Parts are not currently available. GM expects to send an interim notification around May 28, 2014. When parts are available, owners will be mailed a second letter to come in to have the applicable bulletin applied. Bulletin 14115 covers model year 2004-2007 Saturn Ion, 2009-2010 Chevrolet HHR and 2010 Chevrolet Cobalts. Dealers will replace the EPS motor. Bulletin 14116 covers model year 2004-2006 Chevrolet Malibu and Malibu Maxx, 2005-2006 Pontiac G6 and 2008-2009 Chevrolet Malibu, Pontiac G6 and Saturn Aura built from March 1, 2008, through June 27, 2008. Dealers will replace the torque sensor assembly. Bulletin 14117 covers model year 2008 Chevrolet Malibu, Pontiac G6 and Saturn Aura built from February 1, 2008, through February 28, 2008. Dealers will replace the torque sensor assembly and EPS motor controller unit. Bulletin 14118 covers model year 2008 Chevrolet Malibu, Pontiac G6 and Saturn Aura built from October 1, 2007, through January 31, 2008. Dealers will replace the EPS motor controller unit. The recall began on July 17, 2014. Owners may contact Chevrolet at 1-800-630-2438, Saturn at 1-800-553-6000, and Pontiac at 1-800-620-7668. GM's number for this recall is N140115. Note: GM bulletin number 14119 will be implemented for model year 2006-2008 and early production of 2009 Chevrolet HHR (non-turbo) and model year 2003 Saturn ION to provide EPS Motor replacement for the life of the vehicle.

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. GM’s 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. GM’s 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. GM’s 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.

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

1

PE20011 · Fuel Line Leak

Opened Jul 5, 2020 · Closed Aug 17, 2023

Status: closed (inferred from source dates) · Fuel System, Gasoline; Fuel System, Other:delivery:hoses, Lines/piping, And Fittings; Fuel/propulsion System

On July 5, 2020, the Office of Defects Investigations (ODI) opened PE20-011 to investigate instances of metal fuel lines under the vehicle corroding and leaking fuel in model year (MY) 2008 through 2010 Chevrolet Cobalt and 2008 through 2009 Chevrolet HHR passenger cars manufactured by General Motors (GM). The metal fuel lines are corroding and leaking fuel in the area between the front and rear wheels on the driver's side of the vehicle before the muffler. Most consumers allege a fuel odor and/or an observable fuel leak that alerts them to the condition.The subject metal fuel lines have a protective AGE coating and, in the vicinity of the left rear wheel, are further wrapped in a foil heat shield. The AGE coating consists of an annealed zinc aluminum alloy metal coating with extended corrosion protection paint. Under certain conditions, water and corrosive road deicing agents may enter a crevice between the heat shield and the AGE coating. With extended environmental exposure in high corrosive environments, the AGE coating can degrade. If it degrades enough, the base metal lines may begin to corrode beneath the heat shield.Corrosion to the fuel lines may eventually cause a perforation to develop in the line, allowing fuel vapors to escape from between the line and the heat shield, emitting a fuel odor that will be detectable to the vehicle operator. If the corrosion progresses, fuel may begin to weep from the line. Further metal degradation due to corrosion could create a drip or a mist of fuel. If this occurs, vehicle owners may see drips, spots, or puddles on the ground near the rear portion of the vehicle, primarily along the driver's side rear wheel.The majority of allegations (85%) were reported for vehicles that are operated in the salt belt region of the United States. This area includes states in the Northeast, mid-Atlantic, and Midwest regions. Additionally, the average failure mileage in the subject vehicles is approximately 111,000 across all data sources.Considering the low manufacturer complaint/warranty rates of fuel line replacement, the fact that the majority of failures are concentrated in salt belt states, high failure mileages, as well as the field exposure time for the subject vehicles, and the highly detectable and progressive nature of this failure over time, the potential safety consequences of this issue are very low. To date, there have been no reported crashes, injuries, or fatalities related to this issue. There are two reported fires in ODI data and no reported fires in GM data. Both ODI reported fires were minor, occurred after the vehicle was parked, and were extinguished utilizing fire extinguishers.In view of the progressive failure occurring at high mileages, the age of the subject vehicles, the high detectability of the leak, and the majority of failures occurred in salt belt states, this Preliminary Evaluation is closed. The agency reserves the right to take additional action if warranted by new circumstances.Review the ODI reports cited above at nhtsa.gov under the attached identification numbers.

Additional source detail variants (3)

Fuel/propulsion System

On July 5, 2020, the Office of Defects Investigations (ODI) opened PE20-011 to investigate instances of metal fuel lines under the vehicle corroding and leaking fuel in model year (MY) 2008 through 2010 Chevrolet Cobalt and 2008 through 2009 Chevrolet HHR passenger cars manufactured by General Motors (GM). The metal fuel lines are corroding and leaking fuel in the area between the front and rear wheels on the driver's side of the vehicle before the muffler. Most consumers allege a fuel odor and/or an observable fuel leak that alerts them to the condition.The subject metal fuel lines have a protective AGE coating and, in the vicinity of the left rear wheel, are further wrapped in a foil heat shield. The AGE coating consists of an annealed zinc aluminum alloy metal coating with extended corrosion protection paint. Under certain conditions, water and corrosive road deicing agents may enter a crevice between the heat shield and the AGE coating. With extended environmental exposure in high corrosive environments, the AGE coating can degrade. If it degrades enough, the base metal lines may begin to corrode beneath the heat shield.Corrosion to the fuel lines may eventually cause a perforation to develop in the line, allowing fuel vapors to escape from between the line and the heat shield, emitting a fuel odor that will be detectable to the vehicle operator. If the corrosion progresses, fuel may begin to weep from the line. Further metal degradation due to corrosion could create a drip or a mist of fuel. If this occurs, vehicle owners may see drips, spots, or puddles on the ground near the rear portion of the vehicle, primarily along the driver's side rear wheel.The majority of allegations (85%) were reported for vehicles that are operated in the salt belt region of the United States. This area includes states in the Northeast, mid-Atlantic, and Midwest regions. Additionally, the average failure mileage in the subject vehicles is approximately 111,000 across all data sources.Considering the low manufacturer complaint/warranty rates of fuel line replacement, the fact that the majority of failures are concentrated in salt belt states, high failure mileages, as well as the field exposure time for the subject vehicles, and the highly detectable and progressive nature of this failure over time, the potential safety consequences of this issue are very low. To date, there have been no reported crashes, injuries, or fatalities related to this issue. There are two reported fires in ODI data and no reported fires in GM data. Both ODI reported fires were minor, occurred after the vehicle was parked, and were extinguished utilizing fire extinguishers.In view of the progressive failure occurring at high mileages, the age of the subject vehicles, the high detectability of the leak, and the majority of failures occurred in salt belt states, this Preliminary Evaluation is closed. The agency reserves the right to take additional action if warranted by new circumstances.Review the ODI reports cited above at nhtsa.gov under the attached identification numbers.

Fuel System, Gasoline

On July 5, 2020, the Office of Defects Investigations (ODI) opened PE20-011 to investigate instances of metal fuel lines under the vehicle corroding and leaking fuel in model year (MY) 2008 through 2010 Chevrolet Cobalt and 2008 through 2009 Chevrolet HHR passenger cars manufactured by General Motors (GM). The metal fuel lines are corroding and leaking fuel in the area between the front and rear wheels on the driver's side of the vehicle before the muffler. Most consumers allege a fuel odor and/or an observable fuel leak that alerts them to the condition.The subject metal fuel lines have a protective AGE coating and, in the vicinity of the left rear wheel, are further wrapped in a foil heat shield. The AGE coating consists of an annealed zinc aluminum alloy metal coating with extended corrosion protection paint. Under certain conditions, water and corrosive road deicing agents may enter a crevice between the heat shield and the AGE coating. With extended environmental exposure in high corrosive environments, the AGE coating can degrade. If it degrades enough, the base metal lines may begin to corrode beneath the heat shield.Corrosion to the fuel lines may eventually cause a perforation to develop in the line, allowing fuel vapors to escape from between the line and the heat shield, emitting a fuel odor that will be detectable to the vehicle operator. If the corrosion progresses, fuel may begin to weep from the line. Further metal degradation due to corrosion could create a drip or a mist of fuel. If this occurs, vehicle owners may see drips, spots, or puddles on the ground near the rear portion of the vehicle, primarily along the driver's side rear wheel.The majority of allegations (85%) were reported for vehicles that are operated in the salt belt region of the United States. This area includes states in the Northeast, mid-Atlantic, and Midwest regions. Additionally, the average failure mileage in the subject vehicles is approximately 111,000 across all data sources.Considering the low manufacturer complaint/warranty rates of fuel line replacement, the fact that the majority of failures are concentrated in salt belt states, high failure mileages, as well as the field exposure time for the subject vehicles, and the highly detectable and progressive nature of this failure over time, the potential safety consequences of this issue are very low. To date, there have been no reported crashes, injuries, or fatalities related to this issue. There are two reported fires in ODI data and no reported fires in GM data. Both ODI reported fires were minor, occurred after the vehicle was parked, and were extinguished utilizing fire extinguishers.In view of the progressive failure occurring at high mileages, the age of the subject vehicles, the high detectability of the leak, and the majority of failures occurred in salt belt states, this Preliminary Evaluation is closed. The agency reserves the right to take additional action if warranted by new circumstances.Review the ODI reports cited above at nhtsa.gov under the attached identification numbers.

Fuel System, Other:delivery:hoses, Lines/piping, And Fittings

On July 5, 2020, the Office of Defects Investigations (ODI) opened PE20-011 to investigate instances of metal fuel lines under the vehicle corroding and leaking fuel in model year (MY) 2008 through 2010 Chevrolet Cobalt and 2008 through 2009 Chevrolet HHR passenger cars manufactured by General Motors (GM). The metal fuel lines are corroding and leaking fuel in the area between the front and rear wheels on the driver's side of the vehicle before the muffler. Most consumers allege a fuel odor and/or an observable fuel leak that alerts them to the condition.The subject metal fuel lines have a protective AGE coating and, in the vicinity of the left rear wheel, are further wrapped in a foil heat shield. The AGE coating consists of an annealed zinc aluminum alloy metal coating with extended corrosion protection paint. Under certain conditions, water and corrosive road deicing agents may enter a crevice between the heat shield and the AGE coating. With extended environmental exposure in high corrosive environments, the AGE coating can degrade. If it degrades enough, the base metal lines may begin to corrode beneath the heat shield.Corrosion to the fuel lines may eventually cause a perforation to develop in the line, allowing fuel vapors to escape from between the line and the heat shield, emitting a fuel odor that will be detectable to the vehicle operator. If the corrosion progresses, fuel may begin to weep from the line. Further metal degradation due to corrosion could create a drip or a mist of fuel. If this occurs, vehicle owners may see drips, spots, or puddles on the ground near the rear portion of the vehicle, primarily along the driver's side rear wheel.The majority of allegations (85%) were reported for vehicles that are operated in the salt belt region of the United States. This area includes states in the Northeast, mid-Atlantic, and Midwest regions. Additionally, the average failure mileage in the subject vehicles is approximately 111,000 across all data sources.Considering the low manufacturer complaint/warranty rates of fuel line replacement, the fact that the majority of failures are concentrated in salt belt states, high failure mileages, as well as the field exposure time for the subject vehicles, and the highly detectable and progressive nature of this failure over time, the potential safety consequences of this issue are very low. To date, there have been no reported crashes, injuries, or fatalities related to this issue. There are two reported fires in ODI data and no reported fires in GM data. Both ODI reported fires were minor, occurred after the vehicle was parked, and were extinguished utilizing fire extinguishers.In view of the progressive failure occurring at high mileages, the age of the subject vehicles, the high detectability of the leak, and the majority of failures occurred in salt belt states, this Preliminary Evaluation is closed. The agency reserves the right to take additional action if warranted by new circumstances.Review the ODI reports cited above at nhtsa.gov under the attached identification numbers.