Which parts fail
Components named in complaints (fuel pump, injectors, fuel tank, hybrid and EV propulsion).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2008 Chevrolet HHR owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2008 Chevrolet HHR. The contact stated that while the vehicle was parked and turned off, the contact was informed that the vehicle was leaking gasoline. The vehicle was inspected, and the contact was informed that fuel was leaking from the driver's side rear wheel well area, near the muffler. While at the residence, the contact observed that fuel was still leaking from the vehicle. The vehicle was taken to an independent mechanic, where it was diagnosed with a rusted fuel line located near the driver's side rear wheel well, and needed to be replaced. The vehicle was not repaired. The dealer was contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure and advised the contact to have the vehicle diagnosed by a dealer. The approximate failure mileage was 68,900. The VIN was not available.
The contact owns a 2008 Chevrolet HHR. The contact stated that after starting the vehicle, the contact became aware of a fuel leak nearby the rear driver's side wheel. There were no warning lights illuminated. The contact towed the vehicle to an independent mechanic who diagnosed that the fuel line had completely rusted due to being wrapped in heat-reliant tape. The contact was informed that the fuel lines needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure and was informed that there was a recall related to the rust failure of the fuel line of another make and model vehicle however, the VIN was not included. The approximate failure mileage was 199,000.
The contact owns a 2008 Chevrolet HHR. The contact stated while driving 30 mph, he started to smell gasoline fumes inside the vehicle. The contact stated that there was no warning light illuminated. The contact stated after parking his vehicle, a bystander informed him that the vehicle had a fuel leak. The contact took the vehicle to the local dealer to be diagnosed. The contact was informed that the fuel line needed to be replaced. The vehicle was not yet repaired but was pending repairs. The manufacturer had not been informed of the failure. The failure mileage was approximately 147,240.
The contact owns a 2008 Chevrolet HHR. The contact stated that while the vehicle was parked, she noticed there was a puddle on the ground located on the rear driver's side. Upon inspection, the contact detected a fuel odor and noticed there was a fuel leak coming from the fuel lines. The dealer was made aware of the failure and scheduled an upcoming appointment for diagnosis. The manufacturer was not made aware of the failure. The contact related the failure to NHTSA Action Number: PE20011 (Fuel System, Other). The failure mileage was approximately 113,000.
The contact owns a 2008 Chevrolet HHR. The contact stated that while parking the vehicle, the contact detected an abnormally strong fuel odor. Upon inspection, the contact noticed a leak coming from underneath the rear driver's side door. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The contact related the failure to NHTSA Action Number: PE20011 (Fuel System, Other, Fuel/Propulsion System, Fuel System, Gasoline). The failure mileage was 184,025.
The contact owns a 2008 Chevrolet HHR. The contact stated that her father noticed that the vehicle was leaking fuel. Upon inspection, the contact became aware that the fuel lines had rusted and had started leaking. The vehicle was not taken to a dealer to be inspected. The manufacturer was not informed of the failure. The failure mileage was 141,802. Consumer stated mechanic had to take off the fiberglass mat heat barrier because it was soaked in fuel, and was rubbing the exhaust, so we could see the damage.
The contact owns a 2008 Chevrolet HHR. The contact stated that there was fuel leaking from the fuel tank. There was no warning light illuminated. The vehicle was taken to an independent mechanic who replaced the fuel tank however, the failure persisted. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted but no assistance was provided. The failure mileage was approximately 6,000.
The contact owns a 2008 Chevrolet HHR. The contact stated that there was an abnormal fuel odor at the rear of the vehicle. The vehicle was taken to the dealer to be diagnosed. The dealer informed the contact that the fuel lines located at the rear driver's side wheel were leaking and that the wheel was corroded. The vehicle was not repaired. The manufacturer was contacted and informed of the failure. The failure mileage was 93,368.
My power steering unexpectedly has gone out. When it first happened I was on the freeway in the rain and it locked up. Thankfully there were no others cars near me or I would of had an accident. I called the dealership and they said there WAS a recall but too much time has passed! This makes no sense. If it's bad it's bad, what the heck! So now I have taken the fuse out and it at least keeps it from locking up it it is VERY difficult to steer and I fear not being able to respond quickly in an emergency. Then I was noticing that when I add gas it had trouble turning over. Only when I added gas. Gas mileage began getting worse and then I felt the motor having difficulty while again on the freeway. I could smell gas and pulled over. There was smoke under the hood and I could see gas puddling up under my car. Now I am scared of my car. …
Fuel tank assembly developed a fuel leak at or around its integrated tank vents creating a strong fuel smell inside and outside the vehicle. THIS IS NOT A RUSTED FUEL LINE PROBLEM. This poses a fire hazard if the vehicle were to come into contact with any spark or flames. This also poses a health hazard from exposure to toxic fumes inside and outside the vehicle. This condition did not trigger any warning messages from the onboard vehicle computer. The seal between the tank vents and fuel tank is made by the manufacturer and is unserviceable. I attempted to seal the leaks with adhesive but was unsuccessful. I then purchased a used replacement fuel tank from an auto recycler and discovered it also has this issue. I believe this to be a design defect that will lead to an unsafe condition in these vehicles. I can make these components available for inspection. …
NHTSA investigations
Fuel Line Leak
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).
Fuel System complaints in other HHR years
Frequently asked questions
How common are fuel system problems on the 2008 Chevrolet HHR?
NHTSA has 85 complaints about the fuel & propulsion system of the 2008 Chevrolet HHR, 14% of the model year's 616 complaints. The component named most often is delivery › hoses, lines/piping, and fittings (5 mentions).
Is there a recall for 2008 Chevrolet HHR fuel system problems?
No. NHTSA lists no fuel & propulsion system recall for the 2008 Chevrolet HHR, though it has 4 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2008 Chevrolet HHR fuel system problems start?
Half of the complaints with a recorded mileage happened before about 123,000 miles, and 4% before 25,000 miles.
Is it dangerous?
Owners linked 0 crashes, 1 fire and 0 injuries to fuel & propulsion system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.