9 days after taking possession of my 2019 Acadia, with less than 900 miles on it, it stopped working. The first time I had a problem I had gotten out of the truck to run into a store. When I tried to start it I was getting a message to shift to park. The electric was on, but the truck would not start. I called for a tow truck. The tow driver got the truck started and advised me to drive it to the dealer less than 1 mile away. While driving on a major road I lost my power steering and stabiltrak, making it feel like I lost my brakes. My experience at the dealer was horrible. They changed my battery and said they fixed the problem. I did not even make it 24 hours before having the same problem. The electric was on but the truck was not running. I was getting a message to shift to park. The truck was off and parked but the dashboard was showing D then P again. I called for another tow, and this time it was actually towed. This time I was told it had to do with the computer. Service fixed it and held onto the truck for a few days to make sure it continued working without problems. 6 days later they called me to pick it up and it didn't even make 5 hours this time. The truck was still running this time, but the electric was going crazy. Every light was lit on the dashboard. As I was driving it to the dealer, the speedometer was going crazy. I was driving steady at around 35 mph and the speedometer was showing 1, 0, 5, 0, 30, 31, 6, 0, 5, 31, 32, 1, 0, 5, 0. (I have a video of this but cannot attach it).so that was 55 days ago and I still do not have my truck back because GM is supposedly buying it back. I have concerns seeing 4 other people on this forum alone with the same problem.

- Wellington, FL, USA

I turned the car off and it displays a message 'shift to park, ' even though the car is in park. It doesn't allow the car to shut off completely. The engine turns off, but the electrical stays on. When we try to drive it, it is slow to accelerate and the rpms shoot to 4 and don't go down unless breaking. Finally the car will not accelerate past 55mph and the rpms stay at 4, with the engine being very noisy. This left us stranded an hour from our house because the vehicle is not safe to drive. Fortunately this occurred in a parking lot. We drove a few miles to try to get to our dealership, but did not feel safe driving.

- Kingsville, TX, USA