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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
32,886 miles · Nov 5, 2015
Steering

WHEN I WAS DRIVING THE CAR THE POWER STEELING LIGHT CAN ON AND THEN IT GOT HARDER TO TURN THE WHEEL.INKNOWN WHAT HAPPEN.THEN I WOULD PARK THE CAR AND CUT IT OFF AND THEN START DRIVING MORE AND THEN IT WOULD DO IT AGAIN.

NHTSA ODI #10788737

130,000 miles · Oct 6, 2015
Exterior Lighting

PROBLEMS WITH LIGHTING INCLUDE NO BRIGHT HEADLIGHTS. ALTERNATING PROBLEMS OCCUR WITH THE RUNNING LIGHTS AND DIM LIGHTS. ALTERNATING MEANING THAT BOTH DO WORK AT DIFFERENT TIMES IN ALMOST A BACK AND FORTH PATTERN. THEY HAVE NOT BOTH FAILED TO WORK AT THE SAME TIME AS OF YET. I HAVE MANAGED TO SIMPLY SWITCH AROUND FUSES/RELAYS OF …

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PROBLEMS WITH LIGHTING INCLUDE NO BRIGHT HEADLIGHTS. ALTERNATING PROBLEMS OCCUR WITH THE RUNNING LIGHTS AND DIM LIGHTS. ALTERNATING MEANING THAT BOTH DO WORK AT DIFFERENT TIMES IN ALMOST A BACK AND FORTH PATTERN. THEY HAVE NOT BOTH FAILED TO WORK AT THE SAME TIME AS OF YET. I HAVE MANAGED TO SIMPLY SWITCH AROUND FUSES/RELAYS OF THE SAME MODEL NUMBER TO GET BOTH RUNNING AND DIM LIGHTS TO WORK. THE BRIGHT LIGHTS HAVE NOT WORKED IN ALMOST A YEAR. PROBLEMS OCCUR WHEN CAR IS STARTED FROM A STATIONARY POSITION. I HAVE HAD THE FUSES/RELAYS TESTED AT AN INDEPENDENT AUTO PARTS STORE AND WAS TOLD THEY ARE FINE AFTER BUYING REPLACEMENTS ON TWO OCCASIONS. THIS MATTER NEEDS TO BE THE TOPIC OF A RECALL AS IT IS A SERIOUS SAFETY HAZARD TO NOT HAVE BRIGHT LIGHTS, RUNNING LIGHTS AND ESPECIALLY HEADLIGHTS. I READ ONLINE THAT THIS IS A COMMON ISSUE WITH THE 2008 CHEVY HHR.

NHTSA ODI #10780410

116,000 miles · Sep 29, 2015
Steering

TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. THE CONTACT STATED THAT THE POWER STEERING FAILED INTERMITTENTLY AND THE POWER STEERING WARNING INDICATOR ILLUMINATED ON THE INSTRUMENT PANEL. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 116,000.

NHTSA ODI #10778419

70,000 miles · Sep 29, 2015
SteeringUnknown Or Other

NO ONE CAN PINPOINT WHAT THE CAUSE IS, BUT MY POWER STEERING CUTS OFF SUDDENLY WHILE DRIVING. THIS HAS HAPPEN NUMEROUS TIMES. I HAVE SEARCHED THE INTERNET AND NOTED SEVERAL ARTICLES AND POSTINGS THAT DETAIL THE SAME PROBLEM WITH SIMILAR CARS IN THE HHR 2008. THIS HAPPENS WHEN THE CAR IS IN MOTION. TREAD QUARTERS THINKS REPLAC…

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NO ONE CAN PINPOINT WHAT THE CAUSE IS, BUT MY POWER STEERING CUTS OFF SUDDENLY WHILE DRIVING. THIS HAS HAPPEN NUMEROUS TIMES. I HAVE SEARCHED THE INTERNET AND NOTED SEVERAL ARTICLES AND POSTINGS THAT DETAIL THE SAME PROBLEM WITH SIMILAR CARS IN THE HHR 2008. THIS HAPPENS WHEN THE CAR IS IN MOTION. TREAD QUARTERS THINKS REPLACING ONE OF THE TIRES WOULD HELP, BUT IT HAS NOT. CHEVY NEEDS TO LOOK AT THIS ISSUE SINCE IT SEEMS MORE ELECTRICAL THAN ANYTHING. THERE IS SOMETHING DEFECTIVE OR FAULTY WITH THE CAR. THE POWER STEERING ALWAYS CUTS OFF WHEN I AM EITHER TURNING, DRIVING, ON THE HIGHWAY, ETC. PARKING IS HORRIBLE WHEN THIS HAPPENS. IT TAKES SO MUCH EFFORT TRYING TO TURN. IT NEEDS TO BE INVESTIGATED SINCE OTHER OWNERS COMPLAIN OF THE SAME THING. I EVEN TRIED BALANCING AND ROTATING THE TIRES BEFORE BUT IT KEEPS HAPPENING. HTTP://FORUMS.EDMUNDS.COM/DISCUSSION/14953/CHEVROLET/HHR/CHEVROLET-HHR-POWER-STEERING HTTP://WWW.CARCOMPLAINTS.COM/CHEVROLET/HHR/2008/STEERING/POWER_STEERING_SHUTS_DOWN.SHTML HTTP://MEDIA.GM.COM/MEDIA/US/EN/GM/VEHICLES.DETAIL.HTML/CONTENT/PAGES/NEWS/US/EN/2014/MAR/0331-POWER-STEERING.HTML HTTP://CHEVROLETFORUM.COM/FORUM/HHR-51/POWER-STEERING-CUTS-OUT-46325/

NHTSA ODI #10778365

Mileage unknown · Sep 16, 2015
Steering

JUST WONDERING WHY ARE THERE HUNDREDS OF COMPLAINTS FOR THIS ISSUE AND NOTHING HAS BEEN DONE ABOUT IT? I HAVE BEEN HAVING THIS ISSUE FOR ABOUT 2 YEARS NOW (MY ARMS ARE PERFECTLY TONED) BUT THIS IS RIDICULOUS. WE ARE HAVING THE SAME ISSUES AS THE 2009-2010 HHR OWNER BUT NOTHING IS HAPPENING. HOW MANY PEOPLE HAVE TO HAVE AN ISSUES…

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JUST WONDERING WHY ARE THERE HUNDREDS OF COMPLAINTS FOR THIS ISSUE AND NOTHING HAS BEEN DONE ABOUT IT? I HAVE BEEN HAVING THIS ISSUE FOR ABOUT 2 YEARS NOW (MY ARMS ARE PERFECTLY TONED) BUT THIS IS RIDICULOUS. WE ARE HAVING THE SAME ISSUES AS THE 2009-2010 HHR OWNER BUT NOTHING IS HAPPENING. HOW MANY PEOPLE HAVE TO HAVE AN ISSUES, ACCIDENT, OR DIE FOR SOMEONE TO DO SOMETHING ABOUT IT? SOMEONE PLEASE HELP

NHTSA ODI #10764254

150,000 miles · Sep 9, 2015
Steering

TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 65 AND ATTEMPTING TO SWITCH LANES, THE STEERING WHEEL WAS DIFFICULT TO TURN AFTER THE POWER STEERING WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS RESTART AND IT RESUMED TO NORMAL. THE FAILURE OCCURRED ON SEVERAL OCCASIONS WHILE DRIVI…

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TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 65 AND ATTEMPTING TO SWITCH LANES, THE STEERING WHEEL WAS DIFFICULT TO TURN AFTER THE POWER STEERING WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS RESTART AND IT RESUMED TO NORMAL. THE FAILURE OCCURRED ON SEVERAL OCCASIONS WHILE DRIVING AT HIGH SPEEDS. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 14V153000 (STEERING). THE APPROXIMATE FAILURE MILEAGE WAS 150,000.

NHTSA ODI #10762512

4 miles · Aug 10, 2015
Steering

I WAS DRIVING TO MY MOM'S HOME WHICH IS ABOUT A C4 MILES AWAY AND WHEN I TRIED TO MAKE A LEFT HAND TURN THE STEERING GOT LOCK AND I COULD BARELY FINISH MAKE THE TURN AND I PARKED AND PUT MY EMERGENCY BLINKERS ON AND I TURND OFF THE CAR AND STARTED IT UP AGAIN AND I WAS ABLE TO DRIVE IT. IT HAPPENED AGAIN GOING TO WORK MAKING A T…

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I WAS DRIVING TO MY MOM'S HOME WHICH IS ABOUT A C4 MILES AWAY AND WHEN I TRIED TO MAKE A LEFT HAND TURN THE STEERING GOT LOCK AND I COULD BARELY FINISH MAKE THE TURN AND I PARKED AND PUT MY EMERGENCY BLINKERS ON AND I TURND OFF THE CAR AND STARTED IT UP AGAIN AND I WAS ABLE TO DRIVE IT. IT HAPPENED AGAIN GOING TO WORK MAKING A TURN.

NHTSA ODI #10747495

83,000 miles · Aug 3, 2015
Fuel/propulsion System

TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. WHILE IN PARK, THE VEHICLE FAILED TO START INTERMITTENTLY. IN ADDITION, THE CONTACT NOTICED FUEL FUMES EMITTING FROM THE VEHICLE FUEL WAS LEAKING FROM UNDERNEATH THE VEHICLE. THE FAILURE RECURRED ON NUMEROUS OCCASIONS. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT …

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TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. WHILE IN PARK, THE VEHICLE FAILED TO START INTERMITTENTLY. IN ADDITION, THE CONTACT NOTICED FUEL FUMES EMITTING FROM THE VEHICLE FUEL WAS LEAKING FROM UNDERNEATH THE VEHICLE. THE FAILURE RECURRED ON NUMEROUS OCCASIONS. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE FUEL LINES WERE CORRODED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 83,000.

NHTSA ODI #10745827

222,988 miles · Jul 29, 2015
EngineVehicle Speed Control

WAS AT A STOP SIGN AND WENT TO CROSS THE HIGHWAY GOT HALFWAY ACROSS AND RELIED THE CAR WAS SLOWING DOWN LOOKED AT DASHBOARD AND EVERYTHING LOK NORMAL MADE IT ACROSS HIGHWAY SAFELY AND PULLED OVER ENGINE WAS NOT RUNNING PUT CAR IN PARK AND RESTARTED THE CAR PROCEEDED HOME TO FIND THE DOORS WOULD NOT LOCK WITH INTERIOR BUTTONS OR …

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WAS AT A STOP SIGN AND WENT TO CROSS THE HIGHWAY GOT HALFWAY ACROSS AND RELIED THE CAR WAS SLOWING DOWN LOOKED AT DASHBOARD AND EVERYTHING LOK NORMAL MADE IT ACROSS HIGHWAY SAFELY AND PULLED OVER ENGINE WAS NOT RUNNING PUT CAR IN PARK AND RESTARTED THE CAR PROCEEDED HOME TO FIND THE DOORS WOULD NOT LOCK WITH INTERIOR BUTTONS OR REMOTE THE REMOTE WILL TURN ON THE ALARM YOU CAN MANUALLY LOCK THE DOORS BUT YOU CAN'T LOCK THE HATCH UPDATE 9/15/15*CW

NHTSA ODI #10744823

Mileage unknown · Jul 27, 2015
Steering

2008 CHEVROLET HHR. CONSUMER WRITES IN REGARDS TO SUDDEN LOSS OF ELECTRIC POWER STEERING WHILE DRIVING. *SMD

NHTSA ODI #10743251

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.