One problem related to engine clicking and tapping noises has been reported for the 2011 Chevrolet HHR. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Chevrolet HHR based on all problems reported for the 2011 HHR.
Ignition recall , the switch has been replaced twice . I am still having issues when leaving key in ignition in the off position , all dash lights flash and a lot of clicking noise and will all lock doors . The service air bag light will come on , when you turn it off and restart car it goes out . I took it to the dealership and was told that they could not find the switch defective and they would not replace it , or check into the matter with out charging me a service fee of several hundred dollars . I travel long distances , and concerned about my safety , and other that could be involved in an accident .