One problem related to dash wiring has been reported for the 2009 Chevrolet HHR. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Chevrolet HHR based on all problems reported for the 2009 HHR.
Car has intermittent headlight failure, interior lights on instruments and radio dim, go completely out and then pop back on. This happens randomly. I drive to work in the dark and the lights have gone completely out and will not turn on when it rains and the law says they should be on. Took to the dealer and they replaced part of the wiring. When this did not fix the problem I have taken the car back a total of 4 times and the dealer keeps telling me that they can not duplicate the problem so there is no problem other than me. General motors called about the service I have received and they continue to do nothing about the problem.