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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.

About this comparison →

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

What owners actually said

616 reports
118,000 miles · Jul 10, 2015
Power Train

TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. WHILE DRIVING AT 40 MPH, THE CLUTCH PEDAL WAS DEPRESSED BUT THE VEHICLE FAILED TO ACCELERATE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE CLUTCH MASTER CYLINDER NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE …

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TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. WHILE DRIVING AT 40 MPH, THE CLUTCH PEDAL WAS DEPRESSED BUT THE VEHICLE FAILED TO ACCELERATE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE CLUTCH MASTER CYLINDER NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND STATED THAT THE PART WAS NO LONGER MANUFACTURED. THE FAILURE MILEAGE WAS 118,000.

NHTSA ODI #10733305

86,000 miles · Jul 8, 2015
Electrical System

TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. WHEN THE IGNITION WAS TURNED TO THE ON POSITION, THE INTERIOR LIGHTS FLASHED AND ALL OF THE SYSTEMS RESET. THE IGNITION HAD TO BE TURNED TO THE OFF POSITION AND BACK TO THE ON POSITION IN ORDER FOR THE VEHICLE TO START. THE FAILURE RECURRED NUMEROUS TIMES. THE VEHICLE WAS PREVIOUSLY REP…

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TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. WHEN THE IGNITION WAS TURNED TO THE ON POSITION, THE INTERIOR LIGHTS FLASHED AND ALL OF THE SYSTEMS RESET. THE IGNITION HAD TO BE TURNED TO THE OFF POSITION AND BACK TO THE ON POSITION IN ORDER FOR THE VEHICLE TO START. THE FAILURE RECURRED NUMEROUS TIMES. THE VEHICLE WAS PREVIOUSLY REPAIRED UNDER NHTSA CAMPAIGN NUMBER: 14E021000(ELECTRICAL SYSTEM), BUT THE FAILURE RECURRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 86,000. THE VIN WAS UNAVAILABLE.

NHTSA ODI #10732623

98,000 miles · Jun 7, 2015
Steering

TRAVELING ON CURVY HIGHWAY WE HAD A SUDDEN LOSS OF POWER STEERING, STOPPED CAR AND SHUT ENGINE OFF AND LOOKED CAR OVER AS WELL AS FUSES. WHEN WE STARTED CAR THE POWER STEERING WAS WORKING. TALKED TO CHEVROLET DEALER AND WAS TOLD IT WAS NOT ON ANY RECALL AND WAS GOING TO COST UP TO 350.00 TO CHANGE. SINCE THAT TIME WE HAVE LIVE…

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TRAVELING ON CURVY HIGHWAY WE HAD A SUDDEN LOSS OF POWER STEERING, STOPPED CAR AND SHUT ENGINE OFF AND LOOKED CAR OVER AS WELL AS FUSES. WHEN WE STARTED CAR THE POWER STEERING WAS WORKING. TALKED TO CHEVROLET DEALER AND WAS TOLD IT WAS NOT ON ANY RECALL AND WAS GOING TO COST UP TO 350.00 TO CHANGE. SINCE THAT TIME WE HAVE LIVED WITH IT DUE TO FINANCES, OVER THE LAST MONTH IT HAS GOTTEN WORSE AND HAPPENED 6 TIME TODAY. I KNOW THERE IS A RECALL FOR 2009 HHR'S (#14119) BUT DOES NOT INCLUDE 2008 THAT I AM SURE THEY ARE USING THE SAME PARTS ON THIS MODEL AND AND OTHERS SO WHY NOT INCLUDE 2008 MODELS.

NHTSA ODI #10723882

120,195 miles · Jun 3, 2015
Steering

WHILE DRIVING DOWN THE ROAD...I HEARD A DING AND THE "POWER STEERING" MESSAGE CAME UP ON THE DIC...IT WAS VERY HARD TO TURN LEFT OR RIGHT....WAS ABLE TO PULL OVER AND SHUT THE CAR OFF....STARTED THE CAR BACK UP AND EVERYTHING WAS NORMAL.....BUT THE PROBLEM KEEPS COMING BACK AT DIFFERENT SPEEDS AND AT DIFFERENT TIMES..SOMETIMES I…

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WHILE DRIVING DOWN THE ROAD...I HEARD A DING AND THE "POWER STEERING" MESSAGE CAME UP ON THE DIC...IT WAS VERY HARD TO TURN LEFT OR RIGHT....WAS ABLE TO PULL OVER AND SHUT THE CAR OFF....STARTED THE CAR BACK UP AND EVERYTHING WAS NORMAL.....BUT THE PROBLEM KEEPS COMING BACK AT DIFFERENT SPEEDS AND AT DIFFERENT TIMES..SOMETIMES IT MAY TAKE A DAY OR TWO BEFORE IT COMES BACK...BUT IT DOES COME BACK.....I'VE SEEN HUNDREDS OF COMPLAINT ABOUT THIS PARTICULAR PROBLEM. I HOPE A SOLUTION IS FOUND TO PREVENT THIS FROM POSSIBLY INJURING OR KILLING SOMEBODY....OBVIOUSLY THERE IS A PROBLEM AND SOMETHING NEEDS TO BE DONE ABOUT IT

NHTSA ODI #10723283

Mileage unknown · Jun 1, 2015
Steering

POWER STEERING GOES OUT WHILE DRIVING. AT FIRST THIS ONLY HAPPENED DURING THE HEAT OF THE DAY BUT NOW IS HAPPENING NO MATTER WHAT TIME OF DAY I DRIVE. SPEED DOES NOT SEEM TO BE A FACTOR AS I CAN BE GOING SLOW OR THE POSTED SPEED FOR THE ROADWAY AND IT WILL OCCUR.

NHTSA ODI #10722737

151,757 miles · May 28, 2015
Steering

TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. WHILE TRAVELING APPROXIMATELY 45 MPH, THERE WAS A SUDDEN LOSS OF POWER STEERING. THE STEERING WHEEL WAS TIGHT AND IT SHOOK AND VIBRATED. IN ADDITION, THE STEERING WHEEL WAS DIFFICULT TO TURN LEFT AND RIGHT AND WOULD REMAIN STRAIGHT. THE CONTACT WAS ABLE TO PULL THE VEHICLE OVER, RESTART…

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TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. WHILE TRAVELING APPROXIMATELY 45 MPH, THERE WAS A SUDDEN LOSS OF POWER STEERING. THE STEERING WHEEL WAS TIGHT AND IT SHOOK AND VIBRATED. IN ADDITION, THE STEERING WHEEL WAS DIFFICULT TO TURN LEFT AND RIGHT AND WOULD REMAIN STRAIGHT. THE CONTACT WAS ABLE TO PULL THE VEHICLE OVER, RESTART IT, AND RESET THE COMPUTER. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER FOR FURTHER INSPECTION AND DIAGNOSIS. THE VEHICLE WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 14V153000 (STEERING). THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 151,757.

NHTSA ODI #10721910

Mileage unknown · May 12, 2015
Steering

POWER STEERING GOES OUT WHILE DRIVING. AT FIRST THIS ONLY HAPPENED DURING THE HEAT OF THE DAY BUT NOW IS HAPPENING NO MATTER WHAT TIME OF DAY I DRIVE. SPEED DOES NOT SEEM TO BE A FACTOR AS I CAN BE GOING SLOW OR THE POSTED SPEED FOR THE ROADWAY AND IT WILL OCCUR. THE FIRST FEW TIMES ONLY HAPPENED WHEN I TURNED A CORNER NOW IT…

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POWER STEERING GOES OUT WHILE DRIVING. AT FIRST THIS ONLY HAPPENED DURING THE HEAT OF THE DAY BUT NOW IS HAPPENING NO MATTER WHAT TIME OF DAY I DRIVE. SPEED DOES NOT SEEM TO BE A FACTOR AS I CAN BE GOING SLOW OR THE POSTED SPEED FOR THE ROADWAY AND IT WILL OCCUR. THE FIRST FEW TIMES ONLY HAPPENED WHEN I TURNED A CORNER NOW IT HAPPENS AS I AM DRIVING. I CALLED THE DEALERSHIP TODAY AND WAS INFORMED THIS IS NOT A PROBLEM. ?????? HOW CAN THIS NOT BE A SAFETY PROBLEM??????!!!!!!

NHTSA ODI #10715934

57,000 miles · May 9, 2015
Steering

I WAS ON THE FREEWAY GOING 65 MPH & ALL OF A SUDDEN THE POWER STEERING LIGHT WENT ON &LOST POWER STEERING IMMEDIATELY! THIS COULD HAVE BEEN A VERY BAD ACCIDENT & WAS SCARY. IT WILL COST ME $500 OR MORE TO GET IT FIXED. ALSO, AT APPROX. 48,000 MILES THE BACK REAR DOOR LATCH BROKE & WOULD NOT OPEN, IT COST ME $125 TO REPLACE IT AS…

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I WAS ON THE FREEWAY GOING 65 MPH & ALL OF A SUDDEN THE POWER STEERING LIGHT WENT ON &LOST POWER STEERING IMMEDIATELY! THIS COULD HAVE BEEN A VERY BAD ACCIDENT & WAS SCARY. IT WILL COST ME $500 OR MORE TO GET IT FIXED. ALSO, AT APPROX. 48,000 MILES THE BACK REAR DOOR LATCH BROKE & WOULD NOT OPEN, IT COST ME $125 TO REPLACE IT AS THERE WAS NO OTHER WAY TO FIX THIS. BEWARE OF YOUR POWER STEERING.

NHTSA ODI #10715466

100,000 miles · May 7, 2015
Electrical System

TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. THE CONTACT STATED THAT THE VEHICLE FAILED TO START. THE VEHICLE REQUIRED A JUMP START IN ORDER TO RESTART. THE FAILURE RECURRED NUMEROUS TIMES. THE FAILURE OCCURRED AFTER THE VEHICLE WAS SERVICED UNDER NHTSA CAMPAIGN NUMBER: 14V171000 (ELECTRICAL SYSTEM). THE VEHICLE WAS TAKEN TO THE D…

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TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. THE CONTACT STATED THAT THE VEHICLE FAILED TO START. THE VEHICLE REQUIRED A JUMP START IN ORDER TO RESTART. THE FAILURE RECURRED NUMEROUS TIMES. THE FAILURE OCCURRED AFTER THE VEHICLE WAS SERVICED UNDER NHTSA CAMPAIGN NUMBER: 14V171000 (ELECTRICAL SYSTEM). THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE ALTERNATOR AND BATTERY WERE REPLACED AT DIFFERENT TIMES HOWEVER, THE FAILURE PERSISTED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 100,000. UPDATED 6/11/15*CN UPDATED 10/16/2017*CN

NHTSA ODI #10715168

Mileage unknown · Apr 29, 2015
Steering

2008 CHEVROLET HHR. CONSUMER REQUESTS REIMBURSEMENT FOR REPAIRS. *SMD THE CONSUMER STATED WHILE DRIVING, THE POWER STEERING LIGHT ILLUMINATED AND THE TURN SIGNAL SWITCH FAILED. THE DEALER FOUND AN INTERNAL FAILURE WITHIN THE TURN SIGNAL SWITCH AND AN INTERNAL FAILURE WITHIN THE POWER STEERING MOTOR. *JB

NHTSA ODI #10679182

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.