IF MY BATTERY RUNS DOWN THE TPMS SYSTEM LOSES PROGRAMMING AND HAS TO BE TAKEN TO A DEALER TO BE REFLASHED COSTING OVER $100. IF SOMEONE DRIVING THE CAR DOES NOT NOTICE A LOW TIRE IT COULD LEAD TO AN ACCIDENT.
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 →How this year compares
Owner complaints by model year
Compare all Hhr years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
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.
Wheels complaints
9 reportsTHE CAR COMPLETELY SHUT DOWN WHILE DRIVING, NO NOISE NO WARNING, COULD NOT STEER, BRAKE, ROLL WINDOWS DOWN. THIS HAPPENED LAST YEAR. TOOK TO DEALERSHIP. SAID IT WAS MY ALTERNATOR AND CHARGE ME AN EXTREME HIGH CHARGE TO REPLACE. VERY SCAREDY WHEN HAPPENED, FOR AUTO TO CUT OFF LIKE THAT. LUCKILY I WAS DRIVING ABOUT 30MPR AN NOT O…
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THE CAR COMPLETELY SHUT DOWN WHILE DRIVING, NO NOISE NO WARNING, COULD NOT STEER, BRAKE, ROLL WINDOWS DOWN. THIS HAPPENED LAST YEAR. TOOK TO DEALERSHIP. SAID IT WAS MY ALTERNATOR AND CHARGE ME AN EXTREME HIGH CHARGE TO REPLACE. VERY SCAREDY WHEN HAPPENED, FOR AUTO TO CUT OFF LIKE THAT. LUCKILY I WAS DRIVING ABOUT 30MPR AN NOT ON AN INTERSTATE. BOUGHT 2ND HAND. HAVE NOT BEEN HAPPY WITH SINCE. WHEN BOUGHT DID NOT RECEIVE KEY FAN OF, AN THE DRIVERS DOOR, WILL LOCK ON ITS OWN, WHICH LEFT ME BAFFLED HOW TO GET INTO IT WITH NO OTHER KEY HOLES ON ANY OTHER DOORS OR ESPECIALLY THE BACKEND. I FEEL THIS IS VERY TROUBLESOME FOR ANYONE, AND A BAD DESIGN FEATURE. THE AIRBAG IS QUESTIONABLE, AND NOW THE WATER PUMP HAS WENT OUT, AND THEY SAY THE MANIFOLD HAS TO COME OFF TO GET TO AND WANT TO CHARGE 750.00 AT A CAR REPAIR TO FIX, BUT WILL CHECK FIRST TO SEE IF THAT'S FOR SURE WHERE LEAKING. THEN ONE TIRE HAS THE THING THAT TELLS IF MY AIRS OKAY IN THE TIRE ON MY DASHBOARD. IT STAYS ON CAUSE IT FELL OFF IN THE TIRE. THE WHOLE DARN THING IS A NIGHTMARE TO ME, THAT I'M STUCK WITH. FROM THE MOTOR AN EXPENSE IT IS TO HAVE WORKED ON TO THE POOR EXPENSIVE DESIGN THAT GOT ON THE MARKET. IT'S A NIGHTMARE.
DRIVING ON A CITY STREET AROUND 40 MILES PER HOUR WHEN ALARM SOUNDS AND I HAVE NO POWER STEERING. VERY HARD TO TURN DROVE HOME AND IT DID IT AGAIN TODAY....ALSO TIRE SENSORS ALARM STATING TIRES ARE DEFLATED...WHEN THEY ARE FINE..
WHEN I BUHGT THIS VEHICLE IT WAS THE LEFT SIDE SHOCKED SOLVER WAS LOSS UNSCREWED LOCKY ME I FOUND THE BEFORE ANYTHING HAPPENED IN THE HWY THEN I FOUND UNTHER THE VEHICLE A BIG BUMP LIKE THIS CAR WAS IN A CRASH ACCIDENT I EXPLAINS THE DEALER SALES MAN AND HE TOLL ME TO HE DON'T KNOW A BOUGHT IT THEN ONE WHEEL WAS MORE BIG THAN TH…
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WHEN I BUHGT THIS VEHICLE IT WAS THE LEFT SIDE SHOCKED SOLVER WAS LOSS UNSCREWED LOCKY ME I FOUND THE BEFORE ANYTHING HAPPENED IN THE HWY THEN I FOUND UNTHER THE VEHICLE A BIG BUMP LIKE THIS CAR WAS IN A CRASH ACCIDENT I EXPLAINS THE DEALER SALES MAN AND HE TOLL ME TO HE DON'T KNOW A BOUGHT IT THEN ONE WHEEL WAS MORE BIG THAN THE OTHER WHEELS SO I BOUGHT ANOTHER TIRE I THEN START SEARCH THE INFORMATION ON THIS CAR WITH NO SUCCESS EVEN CAR MAX IS NO RECORD OF THE VEHICLE I THE CONTINUED DRIVING THE CAR AND I FIND OUT THIS CAR WAS A CAR CRASH VEHICLE BECAUSE I NOTICE DRIVER SIDE WAS PANEL FIX AND FOR MORE TO KNOW THIS CAR IS UNSAFELY TO DRIVE WHEN YOU GO MORE THAT 50" MILES IN A RAIN THE CAR EASY DERAIL AND LOCKY I BE HAVE NOT VEHICLE IN MY SIDE IT HAPPEN TO ME THREE TIME I CALL THE DEALERSHIP AND ASK TO CHANGE ME THIS VEHICLE IS TO DANGER TO DRIVE AND THERE RESPOND WAS SALE THE CAR AND BUY ME ANOTHER ONE THAT TELL ME THE UNRESPONSIVE THEY ARE NO CARE IF ANOTHER FAMILY BUY THE CAR AND THEN THEY CAN HAVE A ACCIDENT AND EVEN KILL THEM SALFE I TOLL HIM I CAN NOT SALE A VEHICLE THAT IS UNSAFE TO ANY ONE SO THAT'S WAY I REPORTED TO YOU GUYS TO PUT A STOP TO THIS DEALER BECAUSE I NOTICE THEY HAVE A BIG JUNK YARD IN THE BACK OF THE DEALERSHIP AND THAT TELL ME THAT THEY FIX JUNK CARS AND RESALES WITH UNSAFETY ESUE AND THEY NEED TO BE INSPECTED TO SEE THEY NOT RISK FAMILY'S OUT THERE AND I WANT MY MONEY BACK AND MY EXPENCESS I PUT TO THIS JUNK.
WHEN I FIRST BOUGHT THE CAR WAS NOT ABLE TO TEST ON HWY CONDITION BUT IT CAME WITH EXTENDED BUMPER TO BUMPER WARRANTY THE FIRST TIME GOT ON FREEWAY SHAKE HORRIBLE WHILE BRAKING. TWO MONTHS PAST HAD ROTORS TURNED NEW BRAKES PUT ON BY GOOD YEAR SHOP FIRST TIME ON FREEWAY STILL SHAKES HORRIBLE. WITH NE ROTORS AND PADS WILL STILL SH…
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WHEN I FIRST BOUGHT THE CAR WAS NOT ABLE TO TEST ON HWY CONDITION BUT IT CAME WITH EXTENDED BUMPER TO BUMPER WARRANTY THE FIRST TIME GOT ON FREEWAY SHAKE HORRIBLE WHILE BRAKING. TWO MONTHS PAST HAD ROTORS TURNED NEW BRAKES PUT ON BY GOOD YEAR SHOP FIRST TIME ON FREEWAY STILL SHAKES HORRIBLE. WITH NE ROTORS AND PADS WILL STILL SHAKE THIS HAS BEEN FULLY INSPECTED TWICE AND NO PROBLEMS. IT JUST SEEMS TO ME THAT ARE TO MANY COMPLAINTS ABOUT THIS ISSUE NOT TO HAVE A TSB OR RECALL ITS NOT FAIR TO THE CONSUMER AND ITS SEEMS DANGEROUS TO HAVE A SHAKING CAR WHILE SLOWING DOWN AT 50 MPH 40 MPH. CURRENT MILES 50K. *JS
OUR 2008 CHEVY HHR JUST STARTS TO SHAKE ON THE HIGHWAY ONCE IT HITS 60 MPH TO ABOUT 64 MPH, THEN IT GOES AWAY. THE SHAKING IS REALLY BAD IT MAKES THE WHOLE CAR SHAKE AND MY HANDS BEGAN TO SHAKE PRETTY HARD ON THE STEERING WHEEL. WE'VE REPLACED ALL THE TIRES WITH BRAND NEW GOODYEAR EAGLE GT AND THEM BALANCED AND WHEEL ALIGNMENT…
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OUR 2008 CHEVY HHR JUST STARTS TO SHAKE ON THE HIGHWAY ONCE IT HITS 60 MPH TO ABOUT 64 MPH, THEN IT GOES AWAY. THE SHAKING IS REALLY BAD IT MAKES THE WHOLE CAR SHAKE AND MY HANDS BEGAN TO SHAKE PRETTY HARD ON THE STEERING WHEEL. WE'VE REPLACED ALL THE TIRES WITH BRAND NEW GOODYEAR EAGLE GT AND THEM BALANCED AND WHEEL ALIGNMENT WAS DONE. BUT THE CAR STILL SHAKES AT THAT SPEED. *TR
WHEN BRAKING TO COME TO A STOP THE BRAKES/WHEELS SHUTTER AND SHAKE VIOLENTLY. *JS
TL* THE CONTACT OWNS A 2008 CHEVROLET HHR SS. THE CONTACT STATED THAT ALL FOUR RIMS ON THE VEHICLE ARE CRACKING NEXT TO THE VALVE STEM. THE CONTACT CONTACTED THE MANUFACTURER AND WAS TOLD TO TAKE THE VEHICLE TO THE DEALER FOR INSPECTION. THE CONTACT HAD NOT TAKEN THE VEHICLE TO THE DEALER. THE FAILURE MILEAGE WAS 87,000.
WE OWN A 2008 HHR AND IT HAS BEEN NOTHING BUT TROUBLE . FIRST WHEN WE PURCHASED THE CAR IN DEC 2008 IT HAD 23,000 MILES ON IT. TWO MONTHS AFTER WE GOT THE CAR WE HAD TO REPLACE BOTH FRONT ROTORS ON IT AND AFTER FIGHTING WITH GM THEY AGREED TO PAY FOR THE ROTORS. AT THIS TIME THEY TOLD US THAT THE CAR NEEDED NEW TIRES AND A FRONT…
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WE OWN A 2008 HHR AND IT HAS BEEN NOTHING BUT TROUBLE . FIRST WHEN WE PURCHASED THE CAR IN DEC 2008 IT HAD 23,000 MILES ON IT. TWO MONTHS AFTER WE GOT THE CAR WE HAD TO REPLACE BOTH FRONT ROTORS ON IT AND AFTER FIGHTING WITH GM THEY AGREED TO PAY FOR THE ROTORS. AT THIS TIME THEY TOLD US THAT THE CAR NEEDED NEW TIRES AND A FRONT END ALIGNMENT AT 26,000 MILES . THEN JUST TWO MONTHS AGO AT 61,000 MILES IT HAD A RUMBLING NOISE IN THE FRONT END ,THE DRIVETRAIN WAS STILL UNDER WARRENTY.THE DEALER TOLD ME THAT THE RIGHT SIDE AXLE BEARING WAS BAD AND THEY REPLACED IT,AND ALSO AT THIS TIME THEY TOLD US THAT THE LOWER BALL JOINT NEEDED TO BE REPLACED AT A COST TO US OF OVER $400.00 . JUST LAST WEEK THE RUMBLING NOISE RETURNED , I RETURNED THE CAR TO THE DEALER AGAIN AND THEY TOLD US THAT THIS THE LEFT AXLE BEARING WAS BAD, WARRANTY ALSO COVERED THIS REPAIR. ALSO THEY SAID THAT THE CAR NEEDED THE FRONT ROTORS TURNED AND NEW BRAKE PADS ON IT .MY WIFE HIT A POTHOLE ABOUT THREE WEEKS AGO AND BENT THE WHEEL . COST TO REPLACE THE WHEEL WAS $150.00 . WHEN I ROTATED THE TIRES AS PER GMS ADVICE I NOTICED THAT THE RIGHT FRONT STRUT WAS LEAKING ,AND AS WELL AS THE LEFT REAR SHOCK ABSORBER. THE ONLY THING I LIKE ABOUT THIS CAR WAS ITS LOOKS. SO NEXT WEEK WE ARE GOING TO BUY A FORD FOCUS.. ITS NO WONDER GM HAD TO HAVE THE GOVERNMENT BAIL THEM OUT... *TR
Official recalls
414V171000 · 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. GMs 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. GMs 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. GMs 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
1PE20011 · 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.
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