One problem related to sway bar has been reported for the 2007 Chevrolet HHR. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Chevrolet HHR based on all problems reported for the 2007 HHR.
I purchased the car 5/13/14. Since that date the car has been "repaired" 16 times, beginning on 5/27/14 for ongoing suspension problems and steering wheel/electrical issues. Suspension issues included the sway bar, stabalizer bar and bushings, defective stablink and frozed strut bearing. Replaced front struts. Steering wheel issues included, replacing of steering wheel complete due to bad wiring, wiring, wiring harness, sir coil replaced, sir coil causing interferance, replaced entire column, ignition switch replacement. The car is unsafe on any road in motion. Entire 14 pages of service records available.