Shift to park - this is round two (2) that this has had to be replaced!! this is round two (2) of transmission control replacement - which worries me that other transmission issues will occur. Acadia is "clearly" in park - and yes I learnt your little trick to wiggle and or touch the +/- button on top of the shift stick to get it to comprehend that it is indeed in park. But that only worked a total of three (3) times. First time was in a parking lot that this occurred - second time in a gas station. Having to restart your vehicle and shut it off 10 times just for it to acknowledge it is in park - is humiliating to say the least when you are at a gas station as well as frustrating. You need not to ignore this - as the first time I could not get out of the vehicle. Second time - I was able to - however if one ignores it will end up draining their battery and/or rolling if you are on an incline. Kindly step forward and fix this issue if you want satisfied customers. As I can put only one date - I put the first one 01/13/2020 second replacement 03-21-2020 27,109 miles. Thank you.

- Topeka, KS, USA

Randomly when the car is put into park and the button is pressed to stop the engine a message comes up on dashboard stating shift to park... sometimes you can wiggle the gear shift and the message goes away, sometimes you must start, move, and stop the car as many as 15 to 20 times to get this to go away. If you exit the car why the message is on dashboard, the horn will chirp at you, and the vehicle is not stable, if it is on a decline it will roll, the radio stays on etc. I found a GM service bulletin regarding this, stating the part to be replaced for the Acadia was 13528228. I have scheduled an appt with the local GM dealer to have this looked at. It could potentially be very dangerous given the right scenario, if a kid or someone hopped out of the car and it wasnt in park. The car has 36,000 miles on it.

- Herrin, IL, 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

Shift to park problem, the dealer tried fixing it 3 times now and having a problem with the wheel. When sometimes turning the car. I can feel something is like stock on tge wheel making me feel like the wheel is gonna get off. I trued contacting the dealer and Chevy office for a buyback but they aren't approving it cos they said I dont have enough reason for them to approve it. Even tho I keep telling them I am not gonna wait for anything bad to happen since I have a 5 month old baby with me. Tge obly thing they suggesting is having it checked. And that's it.

- Lahaina, HI, USA

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

- Pahrump, NV, USA

The contact owns a 2017 GMC Acadia. The contact stated that while the vehicle was parked with the gear shift lever in the park position, the brake pedal was released and the vehicle rolled backwards. Additionally, the contact stated that on several occasions the contact was unable to turn the vehicle off. On one such occasion it took 24 attempts to turn the vehicle off. The contact stated that the failure was intermittent. The vehicle was taken to bergstrom Buick GMC of green bay 3330 located at 301 N taylor St #101, green bay, wi 54304, (800) 721-1840, to be diagnosed and repaired. The technician replaced the entire shifter assembly was replaced however; the failure recurred. A secondary repair was performed with the shifter assembly wiring harness being replaced. The manufacturer was informed of the failure. The approximate failure mileage was 20,000.

- Green Bay, WI, USA

Car gives a "action required, shift to park" and does not turn off although you have put the car in park. You have to put the car into reverse or drive and move it back to park multiple times before it senses it is in park and before it will let you turn off the vehicle. The car was stationary every time this happened in a parking spot.

- Lawrenceburg, KY, USA

Vehicle gives a shift to park warning even though the vehicle is in park. Vehicle cannot be shut off and requires multiple restarts and shut offs and moving of vehicle to get vehicle to recognize it is in park and to shut off.

- Little Rock, AR, USA

When the car is shifted from a driving gear or neutral into park, sometimes the car will not register that it has actually shifted into park. A warning shows up on the dash that says "action required, shift to park" even though it is in park. The car will not turn off during this warning, so you have to shift it back and forth from drive to park until it finally registers park. Sometimes it happens the next try, sometimes it will take 50. There have been two occasions when attempting to park on a slope that the car started to roll, only a foot or two, but then the emergency brake automatically turned on the bring the car to a stop. The car has been in for service multiple times and they have been unable to find a fix at this time.

- Blaine, MN, 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

Vehicle will not shift properly to park when turning the vehicle off. This causes the problem of moving when attempting to turn off the vehicle.

- Macomb, MI, USA

2017 GMC Acadia would issue a warning saying vehicle failed to shift to park even though the vehicle was in park. This vehicle defect is known by GMC and their dealerships. A lawsuit is currently pending regarding this issue. GMC has failed to issue a recall and has failed to resolve the issue. We took our vehicle to the local GMC dealership August 2018 due to the issue. The issue started again in November 2019. When we called about it, they said the prior work wasn't covered and we would have to pay to have the "known defect" repaired again.

- Huntsville, AL, USA

When the shifter is placed into park the screen shows "place shifter into park" the radio still works, screen will not turn off, and the car cannot be locked making it unsafe, easy to get into or stolen.

- Stuart, FL, 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

When I put the car in park and try to shut off my car, it beeps and tells me that I have to shift my car into park. (although my car is already physically in park)this takes me, at times, several attempts. Sometimes I can wiggle the shifter, other times I have to turn my car off and on and switch I to drive and reverse several times before it lets me shut off my car properly so I can exit. I just purchased this car several weeks ago and it just started. This only happens when I am stopped and trying to exit my car. It has happened while trying to go into work (it made me late!), when I was out of town (4 attempts just to be able to get out!). one of these times I'm going to literally be stuck trying to get my car shut off. My concern is that although my car is parked, it may not actually be "locked" into park and could possibly still be in neutral.

- Montoursville, PA, USA

Car continues to tell you to shift to park after it has been placed in park. The car will not allow you to lock or exit the vehicle. To remedy you must shake the gear shift, or wait a period of time, start the car, place in drive and shift back to start. Sometimes, you have to do this several times before the car will realize it is in park.

- Centerton, AR, USA

When car is parked. A message pops up to put the car in park, even though it is in park. This prevents me from locking my doors! it dings, honks, etc because message when out in park message is on!

- Durant, OK, USA

Shift to park warning comes on 3 times in 5 days. Car won't turn on or off for short period.

- Missoula, MT, USA

Upon stopping vehicle and shifting in to park I get a 'shift to park' notification on the drivers' information screen although the vehicle is in park. Sometimes it takes several attempts of shifting from and back to park for the screen to clear.

- Muskegon, MI, USA

I have a 2017 GMC Acadia sl-2 all terrain with 16,000 miles that was in for service a month ago for the 'shift to park' problem for 2 weeks. GM would not replace the shift assembly instead a harness was installed. One week later it was back in for service and has been in there for last 10 days for the same problem. I do have a loaner which I appreciate but I want my car repaired. I am told the GM strike is affecting the delay in getting parts to the dealer. I have researched and ascertained that there are 2 different shift assembly replacements. The first fix for this problem was part no. 84159722. The second replacement number is 13528228 which replaces the 84159722. My car needs part no. 13528228 so we have no further issue with the shift to park problem. (if in fact this is a 'fix.')

- Belleville, MI, USA