A Loose or worn gas cap may cause Check Engine Light to illuminate.
2009 Hummer H3 Problem Reports
Newest 2009 Hummer H3 Problem Reports
Report A Problem
I was in Death Valley, CA off roading. Nothing too major. The second day we were traveling down a gravel road when BANG! The side airbags on both sides of the car deployed. I have it in the shop right now and awaiting response.