The 2017 GMC Acadia I own will not recognize when the vehicle is in park. It states to move to park to shut the vehicle off when the vehicle is already in park. This happens when trying to shut off the vehicle but I am unable to because of the "shift to park" warning. I have to push the stick forward and turn the car on and off several times for the message to disappear. Had this fixed by GMC but they refused to cover under powertrain warranty.

- Glenshaw, PA, USA

Car gives "shift to park" notification when car is shut off even though it clearly shows it is in park. Car will not fully shut off. Have to turn car back on and wiggle shifter or put it in reverse/drive and then back in to park for the car to fully turn off.

- Marine City, MI, USA

'steering assist reduced drive with care' warning light shows up at least once a month. The air conditioner and temperature gauge do not work when this is on. We had it checked and there was zero freon in it. Had that refilled totaling over $400 because it's a special kind that takes the 1234 hook up. Steering assist reduced drive with care warning light came on again like it does every month. Husband popped the hood to take a look and it appears freon has spewed while steering assist light is on, explaining why it was empty when we took it to be checked. The check engine light is also on now too. When powering vehicle off, a message on the screen says 'climate control not available when vehicle is powered off'. additionally we get a 'shift to park' message when we power off the vehicle. Ready to seek legal action

- Calera, AL, USA

While in motion on a city or freeway approximately 35-70 mph, my GMC Acadia will randomly disable the steering assist, lane keep assist, and forward collision automatic braking as well as disable the cruise control feature. The error would show that these features were disabled on the display screen around the speedometer and could not manually be re-enabled with the buttons throughout the car. However, when pulling over and turning off the vehicle and restarting it, the feature would reset as if nothing has went wrong. Sometimes it will revert back to the same issue(s) 5-10 minutes later, and sometimes not at all for a few days or even weeks before starting back over again with the same problems.

- Oak Grove, KY, USA

The first problem I had was the shift. I got it fixed. I have it all documented. Now for the second time in the past 2 weeks my car has flashed every warning light possible. I took it in the first time and was told the codes did not store and to keep driving it. I finally got a video of the problem happening and dropped it off for a second time. During the problem all gauges go to zero and the gear symbol disappears. The last time I drove the car it accelerated on its own and I did not have control of the vehicle.

- Tomahawk, WI, USA

When I put my car in park I get a warning that says my car is not in park action required. The vehicle bell continues to ding and will not allow me to lock the car. My fear is getting out the vehicle and it starting to roll not knowing if the vehicle is actually in park. This is very scary not knowing if it is safe to get out of the vehicle.

- Clayton, NC, USA

2017 GMC Acadia has 'shift to park' error for the last 6 mths. Will not acknowledge the car is in park and will not turn car off completely. It has caused other issues with the car like battery/car hesitating to start in the morning. Also the radio/bluetooth not disconnecting after turning car off. You have. This is a long process to get the car to realize it is in park. After turning car on and off, shifting car out of park and back into park. And also wiggling the shift gear. This after knowing it is an on hoing issue for well over a year is still not a recall and they still have not made a fix for this.

- Navarre, FL, USA

I have a 2017 Acadia. When the car is shifted into park, the dashboard shows a warning that says "shift to park" even though the car is already in park. I have to turn the car off and on several times and slam the shifter into park until the car finally registers that it's in park.. if I leave the car like that, all the electrical stuff stays on and my battery will die. Additionally, when this happens, the car is not in park and seems to be in gear or at least in neutral because it will roll. This is a safety hazard and happens on a daily occurrence.

- Atlanta, GA, USA

After 2 years of ownership of a new GMC Acadia my SUV would not shut off once I parked my car. It would not be able to detect that I shifted into park after arriving at my destination. All the electronics would continue to run. I would have have to stay in the car and play with the shifter until the computer finally read that it was in park. After taking the car to the dealership the SUV was fixed with an new part that seems to have resolved the problem for now but as far as I am aware GMC is still doesn't know why the problem is being caused so I am waiting to see if it happens again. After getting it fixed now my vehicle gives me another warning every time my "auto engine off" is activated at when I come to a stop. Now I continuously get "stebilititrc" warning every time I stop. They fixed one problem and now I have another. It is my family car so I just want to make sure it is safe but GMC doesn't seem to know whats wrong or how to fix it even though they are aware of many Acadias having the same problem.

- Odessa, TX, USA

Keeps telling me to put vehicle in park when it's already in park. Also not consistent about telling you to check back seat. Sometimes it does and sometimes it doesn't. it's turned on.

- Jonesboro, AR, USA

Vehicle had multiple (more than 2) warning lights flashing on and off, while RPM and mph needle would fluctuate simultaneously. This would happen while in the driveway and also while in motion. Vehicle would not accelerate with accelerator pedal fully pressed, especially on an incline. While this was occurring I had to exit the highway and turn around in an adjacent subdivision. I could not get out of the way of a car in the neighborhood because I was trying to go forward on the street due to a slight incline. It would also jerk into gear when moving from reverse and drive. Had this happened in a traffic intersection, it would have been deadly. This car is unsafe. After 6 months of being 'fixed' it has started happening again. The dealership has had the vehicle for a week this time without being able to fix it. The last time it was at the dealership for around 10 days.

- Clayton, NC, USA

When car is put into park a 'action required' comes up saying 'shift into gesr' which the vehicle is already in park. Therefore, will not shut off causing the battery to drain and die.

- Allenstown, NH, USA

I have requested at least 4 times for repair of my car 2017 Acadia. Several caution light on the dashboard comes on including the engine sensor(malfunction indicator lamp). While driving the car it looses power to accelerate. When pressing the gas pedal the car stalls. This issue has happened on both the highway and city. There have also been times when turning into a parking lot I have felt some vibration. Additionally, the car dashboard gives out commands for putting the car in park after it is stationary.

- Kernersville, NC, USA