This is the 2nd time, fixes in March 2019. Now having same problem. When I put the SUV in park I get and error message 'shift to park'. according to GMC there is a technical service bulletin issued but no recall. Of course dealer will not cover cost since it was repaired over a year ago. Vehicle was out of warranty already so I already paid over $330 to have repaired once. GMC will offer no help. Sometimes takes me as many as 10 times turning vehicle on and off before I can get the vehicle to clear the message.

- Aurora, NC, USA

When you put the car in park, the car acts as if it is not in park, and tells you to put the car in park. At this point, it will not shut off

- Duncanville, AL, USA

My 2017 GMC Acadia with 40,000 miles on it has been saying 'shift to park' when I try to turn it off. The only way to get it to turn off and be safely in park is to continuously turn it back on shift to reverse or drive move the car a few feet and try again. It continues to take multiple times and the only thing to 'fix it' GMC claims is to replace a lever and that takes 5-6 hours at 135$ an hour and 2 150$ parts. It is not covered under warranty and is a huge safety issue as you either cannot get the vehicle into park and have it safely stuck or it will continue to stay on and possible roll away. There are hundreds of thousands of forums and posts about this issue and even the people who got it 'fixed' still have issues. It is a safety issue and GMC needs to figure out what is causing it how to fix it and do an emergency recall if they cannot figure it out then they need to fully recall the 17-18 Acadias and provide replacement vehicles as this is a major safety risk. I cannot be stuck at a place during a global pandemic because my car is stuck due to an issue that GMC cannot fix.

- Berthold, ND, USA

With vehicle stationary, I attempted to place the transmission in "park" and turn off the vehicle. The dashboard information screen displayed the message "shift to park" and would not allow the vehicle to fully shut down (headlights remained on) even though the shift knob was in "park" as well as "P" displayed on the dashboard screen. The electronic emergency brake was inoperable and the vehicle seemed to be at risk of rolling away. This left me stranded with the vehicle and unable to remove myself from it.

- Stevensville, MI, USA

Shift to park message appears when vehicle has been shifted into park. Car doesn't turn off. Takes multiple attempts trying to jiggle shift lever, shift from drive to park, or click shift lever button before message disappears. Dealer replaced wiring harness Feb 2020, message started appearing again within the last week (July 5 2020)

- Mt. Jackson, VA, USA

Shift to park error message while depressing brake and shifting vehicle to park position not moving in stationary position and turning off vehicle error message occurs will not allow vehicle to turn off fully nor recognize vehicle is in park.

- Boonville, NY, USA

The contact owns a 2017 GMC Acadia. The contact stated the vehicle failed to acknowledge when the gear shifter was placed in the park position causing the battery to become drained. Additionally, the contact was unable to turn off the vehicle with the gear shifter in neutral. Randy wise Buick GMC (2530 owen rd, fenton, mi 48430, (810)936-4300 stated that the warranty was expired and there was no recall on the vehicle. The vehicle was not repaired. The manufacturer was contacted and informed of the failure. The approximate failure mileage was 36,000.

- Fenton, MI, USA

Vehicle will not shift into park so you can turn off vehicle and exit car. Cannot secure vehicle. What is is going to take to get this problem recalled" surely someone will not have to die because a vehicle will not shift into park" there is a class action lawsuit filed against GMC for this issue. Please do the right thing and have them recall this problem.

- Rome, GA, USA

Vehicle will not shift into park, even though the car is not moving. Cannot turn vehicle off while this message is being displayed. Cannot lock/secure vehicle while this message is displayed.

- Rome, GA, USA

The contact owns a 2017 GMC Acadia. The contact stated that the gear shifter was shifted to park but failed to engage in park. The instrument panel indicated shift to park. The vehicle was taken to kutztown Buick GMC Cadillac (14165 kutztown rd, fleetwood, pa 19522) and was diagnosed that the gear shifter needed to be replaced. The vehicle was not repaired. The contact stated that the vehicle was previously repaired for the same failure. The manufacturer was not made aware of the failure. The failure mileage was 44,000.

- Kutztown, PA, USA

The contact owns a 2017 GMC Acadia. The contact stated that upon placing the gear shifter into the park position, the shift to park warning message illuminated on the instrument panel. After turning off the vehicle, an audible chime was heard inside of the vehicle. The vehicle was not taken to be diagnosed nor repaired. The contact spoke with a representative at karl Chevrolet of stuart (324 sw 8th St, stuart, ia 50250) where she was informed that there was a service bulletin issued for the failure however, there was currently no fix for the vehicle. The manufacturer was not notified of the failure. The failure mileage was 30,000. Consumer stated harness was replaced.

- Stuart, IA, USA

Starting about a month ago when I put my car in park and then turn my vehicle off a 'shift to park' warning comes on and the car will not turn off. The car is in park and I have to shift to a different gear and back to park trying to get it to register it is in park. Sometimes it takes multiple times of trying this before it will recognize it. My vehicle is past the 36,000 miles with about 42,000 miles.

- Port St Lucie, FL, USA

Beginning in may, 2020, my Acadia started saying "shift to park" when I would try to shut it off, although it is in park. It has increasingly gotten worse and it now happens every day. This morning. I had to restart the car, move backwards, forwards, shut off car and repeat 7 times before it finally let me shut the car off without the warning.

- Eau Claire, WI, USA

Gear shift lever shift to park vehicle doesn't go into park and won't cut off and because of it has a tendency sometimes to roll back took to dealership and was explained to some type of harnessing problem with transmission vehicle was stationary.

- Romulus, MI, USA

When I'm in park, the vehicle tells me I need to shift to park before I can turn it off.

- Irmo, SC, USA

My car does not recognize that it has been put in park it dings and tells me to put in park fortunately by shifting again several times I have been able to shut the car off. I am afraid of what will happen when I can not shut it off. This problem started in May 2020.has happened multiple times.

- Lacrescent, MN, USA

I receive a 'shift to park' warning message when my vehicle is clearly in the park position and it prevents my car from being able to completely turn off. I have have had this same issue supposedly repaired at the GMC dealership on two separate occasions and it is now giving me the same error. I am now no longer able to open my garage door from my vehicle, I have had several instances in which the vehicle does not recognize either one of my key fobs.

- Rossford, OH, USA

The contact owns a 2017 GMC Acadia. The contact stated that after shifting the gear selector to the park position, a message displayed on the instrument panel which stated that the vehicle was not in the park. The contact stated that the failure caused the battery to become drained. The vehicle was towed to greenbrook GMC located at 101 us 22 greenbrook, township NJ who diagnosed that the gear selector was defective and needed to be replaced. The vehicle was repaired and the failure was remedied. After retrieving the vehicle, the contact indicated that the vehicle hesitated before responding when the accelerator pedal was depressed. The cause of the failure was not determined. The manufacturer was notified of the failure but offered no assistance. The failure mileage was 56,000.

- Avenel, NJ, USA

When going to turn the car off after it's shifted into park the dashboard display displays a warning that says "shift into park". when this happens the car fails to turn completely off and you have to restart the car and shift it back into park until this no longer displays. The car will also roll backwards a bit when you let off the break.

- Pleasantville, IA, USA

When I shift to park and turn off the vehicle it tells me that is isn't in park. So I have to restart the vehicle and take it out of park and put it back in.

- Casper, WY, USA