2010 Chevrolet HHR SS Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2010 Chevrolet HHR SS
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2010 Chevrolet HHR SS ProblemsCheck Engine Light Due to Gas Cap Issue
A Loose or worn gas cap may cause Check Engine Light to illuminate.
GM recommends replacing the engine coolant at 100,000 miles; however, our technicians tell us that the coolant may become contaminated and require a complete cooling system flush every 60,000 to 70,000 miles.