2009 Pontiac G3 Problems
RepairPal has identified the most common problems with the 2009 Pontiac G3 based on complaints from actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.
The speedometer may stop functioning with code P0722 stored in the powertrain control module (PCM). This may be caused by a worn speedometer gear due to coolant contamination of the transmission fluid. If contamination is found the radiator is most likely at fault. The transmission should also be thoroughly inspected and repaired or replaced as required.
A Loose or worn gas cap may cause Check Engine Light to illuminate.