One mile into commute, the accelerator pedal didn't respond after stopping, then suddenly responded causing car to accelerate rapidly. Repeated twice before the check engine light came on. Stopped car, shut the car off, checked gas cap was fastened securely. Restarted car. The check engine light remained illuminated. Turned around and proceeded the one mile home. Coasted into the parking garage and stopped the car to wait for the garage door to close. While completely stopped the car tried to accelerate without any input to the gas pedal. The RPM's increased and the car tried to drive forward. The RPM's didn't decrease until the car was placed in neutral. The sudden RPM increase while stopped caused the tires to squeal against the smooth pavement in the parking garage. Shut the car off, placed in park, restarted the car and pulled into my parking spot. The next day started the car and the check engine light was still illuminated. Drove the car approximately 5 miles to the dealer without incident. Dealer initially refused to provide a copy of the order and after insisting on having a copy the service manager neglected to indicate on the work order that the car suddenly accelerated without input to the accelerator pedal. Dealer refused to cover the cost of replacing the accelerator pedal position sensor under warranty and argued that the sudden acceleration without input or random increased RPM violates the 8/80K epa warranty or modern safety standards. Contacted GM warranty who also refused to cover the replacement cost under epa or safety warranty.

- Columbia Heights, MN, USA

Feb 3, 2011 was the first occurrence. I put the car in reverse then pulled forward, turning the wheel to the right to give myself room to back up and turn my car so I could pull out onto a busy street going forward rather than backing out into traffic. I was going very slowly and applied the brakes when the car suddenly accelerated very fast. It ran up an 18" rock wall, pushing the brake did nothing, I turned the wheel to the right to avoid a tree while still trying to brake. The brake finally held. A tire was destroyed, it was replaced and taken to my mechanic who found no further damage and no reason for the acceleration. After leaving the mechanic I noticed that it seemed a bit jerky. Two days later I turned the car on while sitting in a parking lot with my foot on the brake, I was still in park so the car did not move, but it did accelerate. It seemed ok after that, Monday when I returned to town I discussed it with my mechanic and noticed a report on bloomberg about the issue with Toyota acceleration problems and that the problem was also with 2009 and 2010 Pontiac Vibes.. I checked this site and found 2 complaints about my same issue with the 2008 Pontiac Vibe.

- Aloha, OR, USA

The contact owns a 2008 Pontiac Vibe. The contact stated that while driving for 2 miles without touching the accelerator; she slowly applied the brakes and they made a loud clanking noise. While driving up hill in her driveway the vehicle was traveling about 20 mph on it's own. The vehicle was not repaired. Diagnostic test have been performed on the vehicle several times for various reasons. The failure and current mileages were 18,500.

- Grays River , WA, USA