Was going to back out of my garage when I put the shifter into reverse. When the shifter was in reverse, it shifted out of gear on its own into drive and it went forward slamming front end of the vehicle into a refrigerator. Causing the refrigerator to be completely destroyed and the front end of the hood to become crooked. This is very dangerous and concerning as had their been someone in front of the vehicle it would have more than likely seriously hurt them or killed them. I have also had other incidents when driving the vehicle that it will shift from drive to low on its own and this happens frequently at least 3 times per week.

- Sunnyside, WA, USA

I was driving on a highway with the speed limit increasing from 35 mph to 55 mph. I was going about 35 mph. The car in front of me signaled to turn. I applied the brake and slowed down until the car in front of me completed their turn. When I moved my foot from the brake to the gas pedal and attempted to accelerate, the engine roared loudly, but the car would neither shift nor accelerate. I had traffic behind me, but I was not able to go faster than about 20 mph in the 45 mph zone. I took my foot completely off the gas pedal and allowed the car to coast for a few seconds. I was finally able to get the car to shift gears and eventually accelerate to keep up with traffic. I was worried that the car behind me would hit me, but they did not. I was grateful that I was not driving on a busy freeway or attempting to merge into heavy traffic as it could have caused an accident.

- Clear Lake, IA, USA

Vehicle jerks and lurches when slowing to turn a corner, then accelerating, especially when turning left. The transmission seems to downshift, but pauses, then jerks into gear when upshifting when the gas pedal is pressed. This only occurs when I slow down to turn a corner (approx. 10-15 mph), then press on the gas pedal. The lurch usually happens between 15-20 mph. I've taken it to the GMC dealership where it was purchased several times, but they don't know what to do with it. They mentioned that it could just be the vehicle "learning, " but it now has over 4000 miles on it. Their latest thinking was that it was a programming problem, but they said that GMC has not created a software fix for the program, and therefore there is nothing that can be done. They told me that it is safe to drive, so I should just keep driving it. I've contacted GMC, but they just refer me back to the dealership, and they don't know what to do. There are similar complaints from others who are experiencing the same problem on www.acadiaforum.net.

- Clear Lake, IA, USA