Pontiac G8 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Pontiac G8
Pontiac G8 Problems
Vehicles with certain V6 engines may illuminate the Check Engine Light one or more of the following codes: P0011, P0014, P0021, P0024, P0341, P0346, P0336, or P0391. Our technicians tell us that some vehicles may require a powertrain control module (PCM) software update to correct this issue. Other vehicles may have excess camshaft end play on one or both cylinder heads which will need to be corrected using special procedures outlined by GM.
Pontiac G8 Questions
In the past 2 years this code always shows up when I take the car to the dealer. About a year ago they found what they called a major problem, so far they have replaced the solenoid valve, rear evap canister, and left axle seal and also the fuel cap. Now a year later and the code is popping up ag...
My brake lights come on when I am driving the car, and the brake lights go off when I press on the brake pedal.
I have replaced the 15amp fuses in the fuse box and moved the relays around. I believe it is a loos connection but having the horns below the headlights on the front fascia means I have to remove the front bumper to even get at them. Also hear audible clicks from he fuse box when horn should sound.
Pontiac G8 Recalls
With the front passenger seat occupied and in the full forward position, the seat position sensor will cause a 30 millisecond deployment delay between the first and second stages of the dual-stage frontal passenger airbag. In the event of a crash, this delay may result in increased head injury to certain front seat occupants. Dealers will reprogram the airbag control module software to correct this concern.
The brake lights may stay illuminated. The tire pressure warning light may come on only after a tire has lost an excessive amount of air. Ineffective brake lights could cause an accident. Erroneous tire pressure warnings could allow tire pressure to get dangerously low. Dealers will reprogram the brake position sensor and the remote door lock receiver. The GM recall numbers are 09101 and 09046. This recall began on June 5, 2009.
Pontiac G8 Reviews
I have a 2008 G8 GT and it has been absolutely a perfect car!! The nearly 400 horsepower is such a pleasure to have available, and the chassis/suspension is SOOO silky-smoothe... like NO OTHER CAR I've ever driven in my life!! I've driven Lexuses, BMW's, Mercedes and more..... but I have NEVER driven another car that has the same feelings of stability, control, not to mention the 400 horsepow...