Vehicle "shift to park" can not be fixed... vehicle will not shift to park, rolls out of driveway even though the vehicle shifter is physically in "park"- vehicle was serviced for this multiple times, and under warranty. Dangerous

- Rancho Santa Margarita, CA, 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

The car will not turn off and reports on the dashboard display 'shift to park' even though the shifter is in park. Truck will roll when it shouldn't be possible. Also, unless you can get it to acknowledge you're in park, headlights and all accessories stay on. An alarm sounds if you leave the vehicle. It's a mess and although GMC knew about the issue in mid 2018, refuses to fix it without payment. This should be a mandatory recall.

- Celebration, FL, USA

The contact owns a 2017 GMC Acadia. The contact stated that after parking the vehicle, the ignition failed to turn off. The contact stated that the vehicle ran on for 20 to 30 minutes. King O'rourke Buick GMC located at (756 smithtown bypass #102, smithtown, NY 1178, (631)482-7312, confirmed the failure. The contact was informed that the vehicle was covered under warranty. The contact was later informed that the bumper to bumper warranty had expired and that the contact would be responsible for the repair costs. The vehicle was not diagnosed nor repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 40,000.

- Holtsville, NY, USA

My vehicle is receiving a "shift to park" error when the vehicle is placed in park. The system does not register park, therefore doesn't shut off and can't be locked or vacated. It takes multiple attempts to get it into park. There is a known issue in GM service bulletin 18-na-297 but GMC has not recalled this dangerous shifter and my vehicle is faulty.

- Hot Springs, AR, USA

Would not shift into park. Was able to shut off engine but electrical system would not shut off. The vehicle was stationary. Dealer had to replace floor shifter and electrical harness.

- South Lyon, MI, USA

When parking vehicle after placing vehicle in park and pushing ignition off dash warns shift to park and vehicle will not turn off completely. Must restart vehicle shift to a different gear then shift back to park and turn vehicle off again.

- Havelock, NC, USA

Sunroof won't open, every time I try to open the sunroof it makes a loud popping sound. When I try to tilt the roof one side goes up and the other side stays flat.

- Aubrey, TX, USA

The contact owns a 2017 GMC Acadia. The contact stated that while the vehicle was stopped with the gear shift lever in the park position, the shift to park warning light illuminated intermittently. The contact was then unable to turn the vehicle off while the warning light was displayed. The vehicle was taken to jim falk motors of maui located at (260 hana hwy #1, kahului, hi 96732), where it was repaired however, the failure recurred three times. The contact also stated that there was an abnormal sound when the steering wheel was turned in either direction. The vehicle was taken back to same dealer to be inspected. The contact was informed that the lug nuts on the front and rear wheels were improperly installed. The vehicle was repaired. The manufacturer was contacted and informed of the failure. A case was filed. The failure mileage was unknown.

- Lahaina, HI, USA

Shift to park warning light turns on when car is in park. Headlights stay on.

- Pahrump, NV, USA

With my vehicle stationary and shifter in the park position, I turn my car off and the vehicle turns off but the instrument cluster says "action required - shift to park". this message also does not allow the day time running lights to turn off and if the lights don't turn off the battery drains if parked for long stretches. I have to turn the car on/off several times before it engages and the message disappears.

- Maspeth, NY, USA

Vehicle does not acknowledge that you are in park and will not turn the vehicle off completely. The engine shuts off, but lights and everything else stays on. If you exit the vehicle it beeps and the horn honks.

- Fort Worth, TX, USA

The vehicle has had ongoing issues since it was purchased in June of 2017. The 'shift to park' problem had to be fixed twice, the emergency braking system engages itself for no apparent reason which has almost caused several accidents, the horn does not work when needed in emergency situations, the headlights are so dim it's dangerous, the battery has drained and left my wife stranded 4 times, and the vehicle has a very rough idle and it almost stalls out. I attempted to work with GM to have them take the car back early (lease) and the request was recently denied. This is my 3rd Acadia and it by far is the most dangerous car I have ever driven. I am now reading about a fuel pump problem that could cause the vehicle to catch on fire, a driveshaft that may separate while driving, and a faulty braking system that could cause the vehicle to lose all braking capability. I do not feel safe having my family in this car and I am requesting your assistance to help me work with GM on a resolution. I entered the date that the vehicle first started to have issues, there have been over 20 incidents over a 2.5 year period causing a safety issue or leaving my wife and children stranded.

- Avon, OH, USA

When I put my vehicle in park and turn it off, my shift to park message comes across and I have to turn my vehicle back on and move the gear from park to something else and back to park. Sometimes this has to be done a few times before it will completely turn off.

- Palm Bay, FL, USA

Battery died, had to have replaced. Car was approximately at 2 year mark when it died.

- Wichita, KS, USA

The vehicle states to 'shift to park' but the vehicle is in park already. The vehicle will not turn off and keeps the battery running. I must start up the car and shift it to drive, then pack to park multiple times before the car recognizes it is in park. This happens every time, but the amount of time it takes to turn on and off to reach 'park' is random.

- Moore, OK, USA

"shift to park" alert appears when car is in "park" and attempting to shut engine off. Electrical system stays on with bell chiming until I can restart car and re-shift again into "park". this may have to be done multiple times before alert no longer appears. Does not happen every time when attempting to shut off engine, but when it does usually requires multiple restarting/re-shifting to get alert turned off.

- Springfield, MO, USA

When I shift the car to park and turn it off, I get a warning on the dash that instructs me to "shift to park" even though I already have. The vehicle will not turn off, and as a result I have to turn the car on and off shifting repeatedly up to 20 times to finally get the car to recognize it's in park. The vehicle is totally unsafe as it will not stay in park!

- Austin, TX, 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

I get a 'shift to park' notification when I put my car in park and try to turn it off. I'm confident my car is in park as it doesn't move when I release the brake, I have to restart the car, put it in drive or reverse, then shift into park again. Sometimes I have to do this 5 times before I'm able to turn off my car.

- Oxford, MI, USA