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2008 Chevrolet Hhr

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2008 Chevrolet Hhr do not stand out strongly from the model-year median of 565.5.

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When problems were reported

Mileage at the reported incident

499 reports with mileage · 117 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 297 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 108 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Fuel/propulsion System. Review the 71 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

30 crash reports6 fire reports21 injury reports

Air Bags complaints

38 reports
Clear category filter
200,000 miles · Feb 24, 2026
Air BagsElectrical SystemTires

The contact owns a 2008 Chevrolet HHR. The contact stated that the key was stuck in the ignition switch and failed to release. Additionally, the TPMS warning light was illuminated. The vehicle was towed to the local dealer, who confirmed that the key was stuck and needed to be broken, and any damages would be at the owner's expe…

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The contact owns a 2008 Chevrolet HHR. The contact stated that the key was stuck in the ignition switch and failed to release. Additionally, the TPMS warning light was illuminated. The vehicle was towed to the local dealer, who confirmed that the key was stuck and needed to be broken, and any damages would be at the owner's expense. The vehicle was not repaired. The contact received notification of NHTSA Campaign Number: 14V171000 (Air Bags, Electrical System). The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 200,000.

NHTSA ODI #11720216

64,000 miles · Dec 23, 2025
Air BagsElectrical System

The contact owns a 2008 Chevrolet HHR. The contact stated that the vehicle was repaired under NHTSA Campaign Number: 14V047000 (Air Bags, Electrical System); but the vehicle experienced a failure. The contact stated that the key could not be removed from the ignition switch while the key was in the "OFF" position. In addition, t…

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The contact owns a 2008 Chevrolet HHR. The contact stated that the vehicle was repaired under NHTSA Campaign Number: 14V047000 (Air Bags, Electrical System); but the vehicle experienced a failure. The contact stated that the key could not be removed from the ignition switch while the key was in the "OFF" position. In addition, the battery was being drained. The contact stated that the battery was previously replaced several months ago. The contact stated that the key was stuck in the ignition switch. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 64,000.

NHTSA ODI #11706785

80,900 miles · Oct 25, 2023
Air Bags

The contact owns a 2008 Chevrolet HHR. The contact stated while driving at approximately 35 MPH, the air bag warning light illuminated. The service air bag soon message was displayed. The vehicle was taken to the local dealer, where it was diagnosed that two unknown modules were defective and needed to be replaced. The dealer in…

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The contact owns a 2008 Chevrolet HHR. The contact stated while driving at approximately 35 MPH, the air bag warning light illuminated. The service air bag soon message was displayed. The vehicle was taken to the local dealer, where it was diagnosed that two unknown modules were defective and needed to be replaced. The dealer informed the contact that the modules were no longer manufactured. The vehicle was not repaired. The vehicle was taken to an independent mechanic, but no assistance was provided. The manufacturer was contacted and informed the contact that the part had been discontinued. The failure mileage was approximately 80,900.

NHTSA ODI #11551839

134,000 miles · Nov 26, 2019
Air BagsCrashInjury

TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. WHILE DRIVING 45 MPH OVER BLACK ICE, THE CONTACT LOST CONTROL OF THE VEHICLE, DROVE OFF THE ROAD, AND CRASHED INTO THREE TREES. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE AIR BAGS DID NOT DEPLOY. THE CONTACT SUSTAINED HEAD, NECK, BACK, AND RIB INJURIES. THE PASSENGER SUSTAINED MU…

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TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. WHILE DRIVING 45 MPH OVER BLACK ICE, THE CONTACT LOST CONTROL OF THE VEHICLE, DROVE OFF THE ROAD, AND CRASHED INTO THREE TREES. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE AIR BAGS DID NOT DEPLOY. THE CONTACT SUSTAINED HEAD, NECK, BACK, AND RIB INJURIES. THE PASSENGER SUSTAINED MULTIPLE UNKNOWN INJURIES. BOTH OCCUPANTS RECEIVED MEDICAL ATTENTION. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO AN INDEPENDENT LOT. THE LOCAL DEALER AND MANUFACTURER WERE NOT CONTACTED. THE FAILURE MILEAGE WAS 134,000.

NHTSA ODI #11282432

90,000 miles · Nov 7, 2018
Air Bags

TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. WHILE DRIVING VARIOUS SPEEDS, THE AIR BAG WARNING INDICATOR ILLUMINATED AND REMAINED LIT. THE VEHICLE WAS NOT TAKEN TO A DEALER TO BE DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 90,000.

NHTSA ODI #11149890

40,000 miles · May 20, 2018
Air BagsEngineStructureCrashInjury

SINGLE CAR ACCIDENT/HIT AN ANIMAL / CAR SPUN OUT OF CONTROL/HIT SEVERAL TREES(CAR WAS A TOTAL LOSS) WIFE & DAUGHTER SEVERELY INJURED//NOT ONE AIR BAG DEPLOYED(HIGHWAY PATROLMAN VERIFIED IN HIS REPORT

NHTSA ODI #11096942

128,000 miles · Feb 6, 2018
Air Bags

TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. THE CONTACT STATED THAT THE CHECK AIR BAG WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO A LOCAL DEALER (PINKERTON CHEVROLET BUICK GMC CADILLAC, 801 GRAVES MILL RD, LYNCHBURG, CA 24502) WHERE IT WAS DETERMINED THAT THE VEHICLE WAS NOT INCLUDED IN A RECALL. THE VEHICLE WAS NOT D…

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TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. THE CONTACT STATED THAT THE CHECK AIR BAG WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO A LOCAL DEALER (PINKERTON CHEVROLET BUICK GMC CADILLAC, 801 GRAVES MILL RD, LYNCHBURG, CA 24502) WHERE IT WAS DETERMINED THAT THE VEHICLE WAS NOT INCLUDED IN A RECALL. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE VIN WAS UNKNOWN. THE FAILURE MILEAGE WAS APPROXIMATELY 128,000.

NHTSA ODI #11067321

Mileage unknown · Mar 8, 2017
Air BagsEngineService Brakes

I AM UNABLE TO GET GM OR MY LOCAL CHEVY DEALERSHIP TO COMPLETE THE TWO OUTSTANDING SAFETY RECALLS IN A TIMELY MANOR. I'VE BEEN EXTREMELY PATIENT BUT THEY REFUSE TO ACCOMMODATE MY SIMPLE NEEDS. I'VE BEEN WORKING WITH CHEVY OF SOUTH ANCHORAGE (DEALERSHIP) SINCE 4/8/2015 ATTEMPTING TO SCHEDULE THE WORK FOR THE WEEKEND OR GET A LOAN…

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I AM UNABLE TO GET GM OR MY LOCAL CHEVY DEALERSHIP TO COMPLETE THE TWO OUTSTANDING SAFETY RECALLS IN A TIMELY MANOR. I'VE BEEN EXTREMELY PATIENT BUT THEY REFUSE TO ACCOMMODATE MY SIMPLE NEEDS. I'VE BEEN WORKING WITH CHEVY OF SOUTH ANCHORAGE (DEALERSHIP) SINCE 4/8/2015 ATTEMPTING TO SCHEDULE THE WORK FOR THE WEEKEND OR GET A LOANER CAR. THEY WERE UNABLE TO ACCOMMODATE MY NEEDS (A CAR WHILE MINE IS BEING REPAIRED OR A LOANER CAR). I CONTACTED CHEVROLET CUSTOMER ASSISTANCE CENTER ON 12/1/2016 AFTER REPEATEDLY BEING IGNORED OR LIED TO BY THE DEALERSHIP. FOR THE PAST THREE MONTH I'VE BEEN GETTING ABSOLUTELY NO HELP FROM CHEVROLET IN GETTING A APPOINTMENT FOR THE WEEKEND OR A LOANER CAR. I FEEL VERY UNSAFE DRIVING THE CAR BUT HAVE NO ALTERNATIVE. THIS HAS CONTINUED TO CAUSE ME SERIOUS EMOTIONAL DISTRESS. I HAVE 57 EMAILS BETWEEN MYSELF AND CHEVROLET CUSTOMER ASSISTANCE CENTER OR THE DEALERSHIP ATTEMPTING TO GET THIS RESOLVED ON TOP OF THE COUNTLESS PHONE CALLS, VOICEMAILS, AND NUMEROUS VISITS TO THE DEALERSHIP.

NHTSA ODI #10959699

143,000 miles · Nov 9, 2016
Air Bags

TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. WHILE DRIVING AT AN UNKNOWN SPEED, AN ERROR MESSAGE DISPLAYED ACROSS THE MESSAGE BOARD. IN ADDITION, THE AIR BAG MODULE FAILED. THE VEHICLE WAS TAKEN TO A LOCAL DEALER WHERE IT WAS DIAGNOSED THAT THE AIR BAGS NEEDED TO BE REPLACED. THE MANUFACTURER DID NOT WANT TO REPAIR THE VEHICLE FOR…

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TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. WHILE DRIVING AT AN UNKNOWN SPEED, AN ERROR MESSAGE DISPLAYED ACROSS THE MESSAGE BOARD. IN ADDITION, THE AIR BAG MODULE FAILED. THE VEHICLE WAS TAKEN TO A LOCAL DEALER WHERE IT WAS DIAGNOSED THAT THE AIR BAGS NEEDED TO BE REPLACED. THE MANUFACTURER DID NOT WANT TO REPAIR THE VEHICLE FOR FREE. THERE WERE NO RECALLS ASSOCIATED WITH THIS VEHICLE. THE FAILURE MILEAGE WAS 143,000.

NHTSA ODI #10925254

55,000 miles · Jun 29, 2016
Air BagsSteeringCrashInjury

I HAD BEEN CALLING GM ABOUT THIS ISSUE, MY DAUGHTER LOVED THIS CAR IT WAS GIVEN TO HER FOR HER BIRTHDAY, OUT OF THE BLUE HER CAR LOST STEERING ON HIGHWAY, IT WAS EARLY AFTERNOON WHEN ALL WERE GETTING OFF FROM WORK WHILE TRYING TO GET OVER WITHOUT STEERING SHE HIT ANOTHER VEHICLE THE CAR WAS TOWED HOME AND HAS BEEN SITTING THERE …

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I HAD BEEN CALLING GM ABOUT THIS ISSUE, MY DAUGHTER LOVED THIS CAR IT WAS GIVEN TO HER FOR HER BIRTHDAY, OUT OF THE BLUE HER CAR LOST STEERING ON HIGHWAY, IT WAS EARLY AFTERNOON WHEN ALL WERE GETTING OFF FROM WORK WHILE TRYING TO GET OVER WITHOUT STEERING SHE HIT ANOTHER VEHICLE THE CAR WAS TOWED HOME AND HAS BEEN SITTING THERE WAITING ON GM TO GET THIS STEERING FIXED MY CHILD COULD HAVE LOST HER LIFE CALL ME [XXX]. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

NHTSA ODI #10881496

Official recalls

4

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.

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.

08V444000 · Latches/locks/linkages:doors:latch

Sep 3, 2008

GM IS RECALLING 296,422 MY 2006-2008 CHEVROLET HHR VEHICLES FOR FAILING TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 201, 'OCCUPANT PROTECTION IN INTERIOR IMPACT." THE DOOR ON THE STORAGE BIN IN THE TOP CENTER OF THE INSTRUMENT PANEL FAILED TO REMAIN CLOSED AS REQUIRED.

Consequence & remedy

Consequence: THIS STANDARD SPECIFIES PERFORMANCE REQUIREMENTS TO PROVIDE HEAD IMPACT PROTECTION FOR OCCUPANTS.

Remedy: A REDESIGNED LATCH WILL BE MADE AVAILABLE. THE RECALL BEGAN ON DECEMBER 23, 2008. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438, OR THROUGH THEIR WEBSITE AT <A HREF=HTTP://WWW.GMOWNERCENTER.COM>HTTP://WWW.GMOWNERCENTER.COM</A> .

08V046000 · Air Bags

Jan 30, 2008

GM IS RECALLING 181,516 MY 2006-2008 CHEVROLET HHR VEHICLES NOT EQUIPPED WITH OPTIONAL ROOF RAIL AIR BAGS FOR FAILING TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 201, 'OCCUPANT PROTECTION IN INTERIOR IMPACT.' IN TESTS, ONE OF THE UPPER INTERIOR OCCUPANT PROTECTION TEST POINTS EXCEEDED THE STANDARD'S REQUIREMENT.

Consequence & remedy

Consequence: THIS STANDARD SPECIFIES PERFORMANCE REQUIREMENTS TO PROVIDE HEAD IMPACT PROTECTION FOR OCCUPANTS.

Remedy: DEALERS WILL INSTALL AN ENERGY-ABSORBING PLASTIC PIECE TO THE HEADLINER TRIM. THE RECALL BEGAN ON APRIL 2, 2008. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438 OR THROUGH THEIR WEBSITE AT <A HREF=HTTP://WWW.GMOWNERCENTER.COM>HTTP://WWW.GMOWNERCENTER.COM</A> .

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.