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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
50,000 miles · Feb 18, 2011
Steering

TL*THE CONTACT OWNS A 2008 CHEVROLET HHR. THE CONTACT STATED THAT WHILE ATTEMPTING TO MAKE EITHER A LEFT OR RIGHT TURN, THE VEHICLE WOULD LOSE ALL POWER STEERING INTERMITTENTLY WITHOUT WARNING. BOTH THE DEALER AND MANUFACTURER WERE NOT NOTIFIED. THE FAILURE WAS NOT DIAGNOSED NOR WAS THE VEHICLE REPAIRED. THE CURRENT MILEAGE WA…

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TL*THE CONTACT OWNS A 2008 CHEVROLET HHR. THE CONTACT STATED THAT WHILE ATTEMPTING TO MAKE EITHER A LEFT OR RIGHT TURN, THE VEHICLE WOULD LOSE ALL POWER STEERING INTERMITTENTLY WITHOUT WARNING. BOTH THE DEALER AND MANUFACTURER WERE NOT NOTIFIED. THE FAILURE WAS NOT DIAGNOSED NOR WAS THE VEHICLE REPAIRED. THE CURRENT MILEAGE WAS 58,000 AND THE FAILURE MILEAGE WAS 50,000. THE VIN WAS UNAVAILABLE.

NHTSA ODI #10383294

10,000 miles · Feb 15, 2011
Steering

I HAVE A 2008 CHEVY HHR, AND HAVE HAD TO DO QUITE A BIT OF RESEARCH TO FIND OUT WHAT THE REAL ISSUE HERE IS. THERE ARE A LOT OF COMPLAINTS ON OTHER WEB SITES ABOUT THE INTERMEDIATE STEERING SHAFT GOING OUT EVERY FEW THOUSAND MILES. THE PROBLEM IS, THAT NO DEALERSHIP CAN SEEM TO DIAGNOSE THE "CLUNKING" NOISE COMING FROM THE DRIVE…

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I HAVE A 2008 CHEVY HHR, AND HAVE HAD TO DO QUITE A BIT OF RESEARCH TO FIND OUT WHAT THE REAL ISSUE HERE IS. THERE ARE A LOT OF COMPLAINTS ON OTHER WEB SITES ABOUT THE INTERMEDIATE STEERING SHAFT GOING OUT EVERY FEW THOUSAND MILES. THE PROBLEM IS, THAT NO DEALERSHIP CAN SEEM TO DIAGNOSE THE "CLUNKING" NOISE COMING FROM THE DRIVERS SIDE FRONT WHEEL AND STEERING COLUMN. HOWEVER THE FEW SHOPS THAT HAVE FIGURED IT OUT ARE HAVING TO RE-REPLACE THE PART CONSTANTLY. GM HAS RE-DESIGNED THE PART FOR OTHER VEHICLES BUT NOT THE HHR. MINE HAS BEEN REPLACED EVERY 10,000 MILES, 4 TIMES NOW AND IT WEARS OUT AFTER ABOUT 10K. GM SHOULD CREATE A BETTER ONE FOR THE HHR AND OFFER A RECALL SINCE THEIR PART IS DEFECTIVE. *TR

NHTSA ODI #10382850

44,000 miles · Feb 15, 2011
Steering

2008 CHEVY HHR WITH INTERMITTENT POWER STEERING FAILURE. CHEVY COBALT HAD A RECALL ON THE SAME POWER STEERING MOTOR HHR USES, WHY IS THERE NO RECALL ON HHR???!!! *TR

NHTSA ODI #10382837

87,489 miles · Jan 3, 2011
Steering

TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 30 MPH, THE STEERING POWER FAILED CAUSING LIMITED STEERING CAPABILITIES. THE VEHICLE WAS TAKEN TO A LOCAL MECHANIC AND DIAGNOSED THAT THE POWER STEERING MOTOR WAS FAULTY. THE MANUFACTURER WAS CONTACTED AND THEY STATED THAT THE PART WAS…

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TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 30 MPH, THE STEERING POWER FAILED CAUSING LIMITED STEERING CAPABILITIES. THE VEHICLE WAS TAKEN TO A LOCAL MECHANIC AND DIAGNOSED THAT THE POWER STEERING MOTOR WAS FAULTY. THE MANUFACTURER WAS CONTACTED AND THEY STATED THAT THE PART WAS PART OF A RECALL FOR ANOTHER MODEL BUT NOT FOR HER PARTICULAR YEAR VEHICLE. THE VEHICLE WAS REPAIRED. THE FAILURE MILEAGE WAS 87,849 AND CURRENT MILEAGE WAS 88,000.

NHTSA ODI #10374006

10,000 miles · Dec 27, 2010
Service Brakes, Hydraulic

VERY ROUGH FRONT END VIBRATION AND DIFFICULTY STEERING WHILE BRAKING AT SPEEDS OVER 50MPH. DEALER TURN ROTORS BUT CAME BACK AFTER A FEW THOUSAND MILES. *TR

NHTSA ODI #10372495

40,000 miles · Dec 18, 2010
Latches/locks/linkagesSteeringCrash

MY 2008 HHR LOOSES POWER STEERING WHILE TURNING, THEN SUDDENLY RETURNS POWER CAUSING TO OVERSTEER. THIS IS A SEVER SAFETY ISSUE AS IT IS A COME AND GO TYPE PROBLEM,I DO NOT DRIVE DURING INCLEMENT WEATHER FEARING BODY DAMAGE TO PERSONS AND VEHICLES OTHER THAN MYSELF. I HAVE TAKEN TO DEALER ONLY TO BE TOLD WE CAN NOT DETERMINE THE…

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MY 2008 HHR LOOSES POWER STEERING WHILE TURNING, THEN SUDDENLY RETURNS POWER CAUSING TO OVERSTEER. THIS IS A SEVER SAFETY ISSUE AS IT IS A COME AND GO TYPE PROBLEM,I DO NOT DRIVE DURING INCLEMENT WEATHER FEARING BODY DAMAGE TO PERSONS AND VEHICLES OTHER THAN MYSELF. I HAVE TAKEN TO DEALER ONLY TO BE TOLD WE CAN NOT DETERMINE THE PROBLEM AS IT IS INTERMITTENT. ALSO THE TIRE PRESSURE DISPLAY IS ON EVEN THO ALL TIRE PRESSURE IS CORRECT, NOT SURE IF THEY ARE RELATED TO "ELECTRIC" POWER STEERING. WOULD LIKE THIS AS A RECORD IF ANY PERSONS ARE INJURED OR WORSE KILLED DUE TO THE POSSIBLE SHORT CIRCUIT IN POWERSTEERING. HOW MANY PEOPLE HAVE TO LEAVE THE VEHICLES AT HOME AFTER SPENDING ALL THEIR MONEY ON THEM FOR THIS TO BE A RECALL? *TR

NHTSA ODI #10371161

87,800 miles · Dec 9, 2010
Steering

TL*THE CONTACT OWNS A 2008 CHEVROLET HHR. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 20 MPH, SHE NOTICED THE POWER STEERING WARNING ILLUMINATED ON THE INSTRUMENTAL PANEL AND THE STEERING FAILED. THE VEHICLE WAS INSPECTED BY A DEALER WHO INFORMED THE CONTACT THAT SHE NEEDED TO REPLACE THE POWER STEERING MOTOR. THE VEHIC…

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TL*THE CONTACT OWNS A 2008 CHEVROLET HHR. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 20 MPH, SHE NOTICED THE POWER STEERING WARNING ILLUMINATED ON THE INSTRUMENTAL PANEL AND THE STEERING FAILED. THE VEHICLE WAS INSPECTED BY A DEALER WHO INFORMED THE CONTACT THAT SHE NEEDED TO REPLACE THE POWER STEERING MOTOR. THE VEHICLE WAS REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 87,800. UPDATED 02/03/11*LJ THE CONSUMER WAS INFORMED OF A RECALL BY HER MECHANIC. HOWEVER, WHEN THE CONSUMER CONTACTED THE DEALER, SHE WAS INFORMED THE RECALL WAS NOT FOR HER VEHICLE, BUT FOR OTHER MODELS. UPDATED 04/21/11

NHTSA ODI #10369821

72,400 miles · Dec 3, 2010
Latches/locks/linkages

TL*THE CONTACT OWNS A 2008 CHEVROLET HHR. WHILE THE VEHICLE WAS PARKED, THE CONTACT ATTEMPTED TO GET OUT OF THE VEHICLE WHEN THE DRIVER SIDE DOOR HANDLE BROKE. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHO STATED THAT SHE NEEDED TO REPLACE THE ENTIRE DOOR PANEL. THE VEHICLE HAD NOT BEEN REPAIRED. THE MANUFACTURER HAD NOT BEE…

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TL*THE CONTACT OWNS A 2008 CHEVROLET HHR. WHILE THE VEHICLE WAS PARKED, THE CONTACT ATTEMPTED TO GET OUT OF THE VEHICLE WHEN THE DRIVER SIDE DOOR HANDLE BROKE. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHO STATED THAT SHE NEEDED TO REPLACE THE ENTIRE DOOR PANEL. THE VEHICLE HAD NOT BEEN REPAIRED. THE MANUFACTURER HAD NOT BEEN NOTIFIED. THE CURRENT AND FAILURE MILEAGES WERE 72,400.

NHTSA ODI #10369076

5,000 miles · Aug 18, 2010
Service Brakes, Hydraulic

BRAKES SHUDDER IN FRONT WHEN MODERATE APPLICATION AT HIGHWAY SPEED 120KPH - DEALER FIX IS HAVING ROTORS MACHINED BUT EVERY TIME THEY DO THAT THEY GET THINNER AND HEAT UP QUICKER THEREFORE WARP QUICKER. THIS TIME THEY HAD TO REPLACE ROTORS AND MACHINED REAR DRUM BECAUSE I LITERALLY HAD TO YOU USE THE PARKING BRAKE TO STOP ON THE …

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BRAKES SHUDDER IN FRONT WHEN MODERATE APPLICATION AT HIGHWAY SPEED 120KPH - DEALER FIX IS HAVING ROTORS MACHINED BUT EVERY TIME THEY DO THAT THEY GET THINNER AND HEAT UP QUICKER THEREFORE WARP QUICKER. THIS TIME THEY HAD TO REPLACE ROTORS AND MACHINED REAR DRUM BECAUSE I LITERALLY HAD TO YOU USE THE PARKING BRAKE TO STOP ON THE HIGHWAY TO GET BACK HOME FROM OUR TRIP. I'M A LICENSED MECHANIC AND HAVE NEVER SEEN SUCH POOR PERFORMANCE IN BRAKES, MY SOLUTION WOULD BE TO INSTALL DISC BRAKES ON THE REAR AXLE TO IMPROVE THE PERFORMANCE IN BRAKING. THIS PROBLEM STARTED AT SINCE CAR WAS PURCHASED 2008 FIRST OCCURRENCE WAS AT 5K (KM) NEW ROTORS WERE PUT IN AT 45K (KM). PLEASE RECALL THESE BRAKES. *TR

NHTSA ODI #10350258

20,100 miles · Jul 13, 2010
Service Brakes, Hydraulic

VERY ROUGH FRONT END VIBRATION AND DIFFICULTY STEERING WHILE BRAKING DOWNHILL. THIS IS THE "SECOND TIME" THIS HAS OCCURED AND I NOTIFIED MY DEALERSHIP. DEALERSHIP RE-CUT MY ROTORS "DUE TO RUST ON ROTORS". *TR

NHTSA ODI #10342934

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.