2008 Chevrolet HHR Engine cooling Problems
- Complaints
- 8about this part
- Share
- 1%of 616 total for the year
- Median mileage
- 25,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 8 complaints about the engine cooling of the 2008 Chevrolet HHR, 1% of the 616 complaints for this model year. Where a mileage was given, the median is 25,500 miles. 1 of these say a crash was involved, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I purchased a 2008 Chevrolet HHR in may of 2009. The vehicle has overheated 4 times in a year. The radiator and cylinder heads have been replaced and I can not be guaranteed that is will not happen again by the dealership. They have admitted it is an unseen situation, but they are unable to resolve the issue.”
NHTSA complaint #10339746, filed 2010-06, 42,300 miles“I took the car into the shop on 11/15/14 because of a loud exhaust sound. The mechanic advised the flex pipe was leaking and the flex pipe and catalytic converters (2) would need to be replaced. The cost is estimated at about $900. If the car is in idol, the exhaust seeps into the car and could cause carbon monoxide poisoning and death, if the windows are not cracked to allow for ventilation. Unfortunately, we cannot afford this repair at this time. The car is 6 years old and should not be falling apart piece by piece as it has been over the last couple of years. …”
NHTSA complaint #10668169, filed 2014-12, 101,214 miles“I also own a 2008 chevy HHR lt that is loaded. I purchased this vehicle brand new and currently have 39,000 miles on it. I have had nothing but trouble with this vehicle. I have had all of the following problems and GM replaced some of them. Gm installed a new intermediate steering column, drag links,turned rotors 4 times and right side upper ball joint. After the warranty expired, the brakes once again went to hell in a hand basket. I ordered a set of racing rotors and ceramic brakes, this cured the brake problem. …”
NHTSA complaint #10325340, filed 2010-04, 6,000 miles“Car stalls while turning, it has been back to the dealership many times they can't find duplicate or fix the problem and have not given me a loaner car.”
NHTSA complaint #10233770, filed 2008-07, 8,700 miles“My brand new chevy HHR will allow rocks and road debris to ruin the radiator and the A/C condenser then they will not fix under warranty. This car will keep having this problem, I cant keep buying 600 dollar radiators every 3 months.”
NHTSA complaint #10219926, filed 2008-03Related service bulletins
- 10251890Mar 13, 2024This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank…
- 10250775Feb 22, 2024This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large…
- 10250505Feb 7, 2024This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
- 10250347Feb 2, 2024This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and…
- 10249579Jan 12, 2024This PI bulletin advises the technician on the proper way to install the pistons in an engine.
- 10245395Nov 6, 2023This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing…
- 10244273Oct 6, 2023This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
- 10242843Sep 1, 2023The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the…
- 10242262Aug 24, 2023This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and…
- 10242061Aug 7, 2023This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
Engine cooling: other model years
Other parts of the 2008 Chevrolet HHR
297 complaintsElectrical system
108 complaintsFuel system
85 complaintsBrakes
55 complaintsAir bags
38 complaintsLatches, locks and linkages
25 complaintsTransmission and drivetrain
22 complaintsEngine
20 complaintsOther or unknown
16 complaintsElectronic stability control
15 complaintsSuspension
15 complaintsBody and structure
13 complaints
← All problems reported for the 2008 Chevrolet HHR
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology