Our vehicle was shifted in reverse to back out of a parking space. Engine was on, all controls normal, no warning lights, etc. As we backed out of our parking space all of a sudden the gas and brake pedals locked up and could not be moved. The car slowly rolled backyards due to slight inlcine. I quickly shifted back to park, turned off the car and waited a minute before restarting. All seemed fine. 2.5 weeks later, the same exact thing happened again. My whole family was in the vehicle the first time and after only 4 days of ownership as a brand new car. The second time was my wife and kids in the middle of the gorcery store parking lot. The vehicle only had 1000 miles on it before being sent back to the dealer to figure out what happened. We traded the vehicle back to the dealer and took a heavy loss as this was the only solution offered to us. GM refused to buy the vehicle back from the dealer because they said they couldn't duplicate the problem. I have gotten nowhere with GM.

- Yorktown Heights, NY, USA