The battery has died three different times after being driven the night prior. I have taken it into the shop once where they said nothing was wrong, but the battery was low, they charged it. The second time (a week later) I was told the battery could not keep a charge so they gave me a new one. Now three months later, it dies again. Waiting to hear what they are going to do now. I can't imagine a car that is a year old can go through two batteries, needing a third.

- Porter Ranch, CA, USA

Power door locks inoperative after shifting into park intermittently. Locking occupants inside of vehicle. Vehicle has been repaired three times where it was purchased for this safety issue. After shutting vehicle off, issue resets itself with proper power door locks operation.

- Westfield, IN, USA

Purchased a new 2009 GMC Acadia, the navigation, radio and dvd system failed. Vehicle only had 405 miles on it. I noted that there were 4 electrical failures documented in NHTSA report on the Acadia. The nav. Radio and dvd are powered by the electrical system as is the computer system and for this reason I have concern that a computer failure might occur while driving the vehicle which could be a serious safety concern. The vehicle was taken to dealer for repair, they could not repair the failed system nor did they even know what was wrong with the system. Dealer had to replace the system. No reason by the dealer was given as to why the navigation, radio and dvd system failed. They said they may never know why it failed. The failed equipment was to be sent into GMC for a failure analysis.

- Alpine, UT, USA