← New search

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
Mileage unknown · Mar 9, 2015
Electrical System

2008 CHEVROLET HHR. CONSUMER WRITES IN REGARDS TO VEHICLE WOULD NOT START, THE SHIFTER WOULD NOT ENGAGE AND IGNITION ISSUES. *SMD

NHTSA ODI #10669043

88,961 miles · Mar 6, 2015
Visibility

TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. WHILE DRIVING AT 65 MPH, GRAVEL FROM THE ROAD CRACKED THE WINDSHIELD. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 88,961. UPDATED 5/26/15*CN UPDATED 9/27/2017*CN

NHTSA ODI #10692559

63,000 miles · Mar 1, 2015
Electrical System

THE ELECTRONIC CONTROL SYSTEMS WERE DAMAGED DURING THE IGNITION SWITCH RECALL SERVICE PERFORMED AT MATTHEWS-HARGREAVES CHEVROLET IN ROYAL OAK MI. I RECENTLY HAD THE IGNITION SWITCH REPLACED AS PART OF A RECALL. I PICKED UP THE VEHICLE ON SATURDAY 2/28/15. ON SUNDAY 3/1/15 THE KEY FOBS (REMOTE START LOCK UNLOCK PANIC) NO LONGE…

Read full complaint

THE ELECTRONIC CONTROL SYSTEMS WERE DAMAGED DURING THE IGNITION SWITCH RECALL SERVICE PERFORMED AT MATTHEWS-HARGREAVES CHEVROLET IN ROYAL OAK MI. I RECENTLY HAD THE IGNITION SWITCH REPLACED AS PART OF A RECALL. I PICKED UP THE VEHICLE ON SATURDAY 2/28/15. ON SUNDAY 3/1/15 THE KEY FOBS (REMOTE START LOCK UNLOCK PANIC) NO LONGER WORK LEADING ME TO BELIEVE THE ELECTRONIC CONTROL SYSTEM WAS DAMAGED WHEN THE VEHICLE WAS REPAIRED. SOMETHING WENT WRONG AT THE DEALERSHIP. THREE FACTS THE RADIO DIDN'T SEEM TO BE RESET SO I BELIEVE THE BATTERY WAS LEFT CONNECTED WHILE THE SWITCH WAS REPLACED. THE KEY FOBS NO LONGER WORK SOMETHING IS WRONG WITH THE ELECTRONIC CONTROL SYSTEM. THE DEALER WASHED THE CAR AND DIDN'T RETURN THE MIRRORS TO THE CORRECT POSITION(BREAK AWAY FOLD MIRRORS) SERVICE QUALITY IS NOT BEING MANAGED AT THIS DEALERSHIP.. I THINK IS SIMPLY THE RESULT OF POOR SERVICE MANAGEMENT AT MATTHEWS-HARGREAVES CHEVROLET IN ROYAL OAK MI BUT THE RESULT IS I HAVE A VEHICLE WITH A DAMAGED ELECTRONIC CONTROL SYSTEM THAT IS NOT SAFE FOR MY WIFE TO DRIVE. I CAN'T GO BACK TO THE DEALERSHIP BECAUSE I DON'T WANT TO RISK MYSELF TO THE QUALITY OF REPAIR SERVICE PROVIDED. THE GM COMPLAINT LINE ISN'T HELPING BECAUSE THEY WOULDN'T REPLACE THE FOBS THAT WERE LOST UNTIL I FOUND THEM TODAY WHEN THEIR RECALL CAUSED ME TO LOOSE THEM IN THE FIRST PLACE WITH NOTHING HANGING ON THE KEY OF COURSE THE FOBS GOT LOST. GM COMPLAINT NUMBER 71-1444284438 BECAUSE I FOUND THE KEY FOBS TODAY 3/1/15 BUT THEY DON'T WORK BECAUSE THE ELECTRONIC CONTROL SYSTEM WAS DAMAGED BY THE POOR QUALITY OF SERVICE AT THE DEALERSHIP. *TR

NHTSA ODI #10691316

Mileage unknown · Feb 26, 2015
Electrical SystemCrash

2008 CHEVROLET HHR. CONSUMER WRITES IN REGARDS TO VEHICLE ACCIDENT DUE TO LOSS OF POWER. *SMD THE VEHICLE WAS TOTALED. *JB

NHTSA ODI #10669026

108,000 miles · Feb 24, 2015
Air BagsSteering

TL*THE CONTACT OWNS A 2008 CHEVROLET HHR. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE POWER STEERING WOULD SUDDENLY MALFUNCTION CAUSING THE STEERING WHEEL TO BECOME VERY DIFFICULT TO TURN. AFTER SHUTTING THE ENGINE OFF AND BACK ON, THE POWER STEERING WOULD OPERATE AS NORMAL. THE CONTACT ALSO INDICATED THAT WHIL…

Read full complaint

TL*THE CONTACT OWNS A 2008 CHEVROLET HHR. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE POWER STEERING WOULD SUDDENLY MALFUNCTION CAUSING THE STEERING WHEEL TO BECOME VERY DIFFICULT TO TURN. AFTER SHUTTING THE ENGINE OFF AND BACK ON, THE POWER STEERING WOULD OPERATE AS NORMAL. THE CONTACT ALSO INDICATED THAT WHILE OPERATING THE VEHICLE, THE WARNING "SERVICE AIR BAGS" HAD ILLUMINATED. THE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 108,000.

NHTSA ODI #10690352

97,500 miles · Feb 7, 2015
Steering

WE WERE TRAVELLING DOWN OUR STREET, ALMOST HOME. THERE WAS A DINGING NOISE AND THE POWER STEERING LIGHT CAME ON. IMMEDIATELY, IT BECAME VERY DIFFICULT TO STEER. WE PARKED OUTSIDE THE HOUSE AND TOOK A DIFFERENT CAR TO AN AUTO SUPPLY STORE, THINK THE CAR NEEDED POWER STEERING FLUID. WE DISCOVERED THE CAR DOES NOT USE POWER STEERIN…

Read full complaint

WE WERE TRAVELLING DOWN OUR STREET, ALMOST HOME. THERE WAS A DINGING NOISE AND THE POWER STEERING LIGHT CAME ON. IMMEDIATELY, IT BECAME VERY DIFFICULT TO STEER. WE PARKED OUTSIDE THE HOUSE AND TOOK A DIFFERENT CAR TO AN AUTO SUPPLY STORE, THINK THE CAR NEEDED POWER STEERING FLUID. WE DISCOVERED THE CAR DOES NOT USE POWER STEERING FLUID. WHEN WE RETURNED HOME AND STARTED THE CAR TO MOVE IT INTO THE DRIVEWAY, IT WAS FINE. THIS HAS HAPPENED ON AND OFF FOR THE PAST TWO WEEKS, SOMETIMES AT SLOW SPEEDS AND SOMETIMES ON THE HIGHWAY, AT SPEEDS BETWEEN 50 AND 65 MPH. THE DEALERSHIP TOLD US THEY CAN'T DO ANYTHING UNLESS THE LIGHT IS ON WHEN THE CAR IS THERE. THIS IS A DANGEROUS SITUATION AND THE LIGHT GOES ON AND OFF RANDOMLY. *JS

NHTSA ODI #10681895

Mileage unknown · Jan 28, 2015
Steering

MY DAUGHTER DROVE IT TO LOCAL COLLEGE THIS MORNING , NO PROBLEM. I GOT IN IT AFTER ABOUT 3 HOURS THAT SHE CAME HOME AND WENT TO USE THE CAR AND I COULD NOT TURN THE WHEEL, THEN I LOOKED DOWN AND THERE WAS A MESSAGE THAT SAID POWER STEERING. I WENT TO CHURCH AND NOW IT IS WORKING AGAIN. I AM VERY CONCERNED BECAUSE SHE DRIVE QUI…

Read full complaint

MY DAUGHTER DROVE IT TO LOCAL COLLEGE THIS MORNING , NO PROBLEM. I GOT IN IT AFTER ABOUT 3 HOURS THAT SHE CAME HOME AND WENT TO USE THE CAR AND I COULD NOT TURN THE WHEEL, THEN I LOOKED DOWN AND THERE WAS A MESSAGE THAT SAID POWER STEERING. I WENT TO CHURCH AND NOW IT IS WORKING AGAIN. I AM VERY CONCERNED BECAUSE SHE DRIVE QUIET ALWAYS TO CLINICAL EVERY WEEK ON A VERY CURVY RODE. IF IT GOES OUT IN ONE OF THOSE CURVES THIS WILL END BAD. *TR

NHTSA ODI #10679604

94,000 miles · Jan 27, 2015
Steering

THE POWER STEERING STOP WORKING AFTER DRIVING A FEW MINUTES. IT IS BECOMING MORE FREQUENT. THIS MAKES IT HARD FOR MY WIFE TO CONTROL AND STEER THE CAR. WHEN SHE TURNS THE CAR OFF AND RESTARTS IT WORKS ONLY TO STOP A FEW MINUTES LATER. *TR

NHTSA ODI #10679078

124,000 miles · Jan 26, 2015
Steering

TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 25 MPH, THE POWER STEERING WARNING LIGHT ILLUMINATED AS THE STEERING ABILITY SEIZED. THE VEHICLE WAS MANEUVER TO THE SIDE OF THE ROAD WHERE IT WAS TURNED OFF. THE VEHICLE WAS RESTARTED AND RESUMED NORMAL FUNCTION. THE VEHICLE WAS NOT T…

Read full complaint

TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 25 MPH, THE POWER STEERING WARNING LIGHT ILLUMINATED AS THE STEERING ABILITY SEIZED. THE VEHICLE WAS MANEUVER TO THE SIDE OF THE ROAD WHERE IT WAS TURNED OFF. THE VEHICLE WAS RESTARTED AND RESUMED NORMAL FUNCTION. THE VEHICLE WAS NOT TAKEN TO A MECHANIC OR THE DEALER. THE CONTACT STATED THAT AFTER CALLING THE DEALER, THE TECHNICIAN STATED THAT THE FAILURE MIGHT BE CAUSED BY A FAULTY POWER STEERING MODULE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 124,000. THE VIN WAS NOT AVAILABLE.

NHTSA ODI #10679013

112,000 miles · Jan 21, 2015
Steering

TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. THE CONTACT STATED THAT THE POWER STEERING WARNING LAMP ILLUMINATED. THE POWER STEERING FAILED AND THE VEHICLE WAS MERGED OVER TO A PARKING LOT. THE VEHICLE WAS TURNED OFF AND RESTARTED, WHICH RESET THE COMPUTER. THE VEHICLE WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 14V153000 (STEERING…

Read full complaint

TL* THE CONTACT OWNS A 2008 CHEVROLET HHR. THE CONTACT STATED THAT THE POWER STEERING WARNING LAMP ILLUMINATED. THE POWER STEERING FAILED AND THE VEHICLE WAS MERGED OVER TO A PARKING LOT. THE VEHICLE WAS TURNED OFF AND RESTARTED, WHICH RESET THE COMPUTER. THE VEHICLE WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 14V153000 (STEERING). THE VEHICLE WAS NOT DIAGNOSED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 112,000.

NHTSA ODI #10676911

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.