Two problems related to radiator have been reported for the 2008 Chevrolet HHR. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Chevrolet HHR based on all problems reported for the 2008 HHR.
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.
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.