Vehicle is put into park when stopped in a parking lot or in my garage but the message on the dash indicates it is not in park. This happens intermittently. The power remains on with lights not shutting off. Shifter harness was replaced in July 2020 per bulletin 19-na-206. The problem showed up again 3 months later.

- Mahtomedi, MN, USA

Gear shift would go into park but would not turn off engine, lock doors, turn off lights. Warning light read to "place in park."

- Norco, CA, USA

When put in park, I shut the car off and it says to put it in park. It's in park, and when I open the door, the horn sounds because it thinks it isn't in park, but why would it let me out of the car, and lock it if it wasn't in park?

- Leominster, MA, USA

Shift to park not engaging into park position, it was stationary

- Quincy, MA, USA

Instrument cluster displays "shift to park" even after putting the car on parking. Because of this, driver can be stranded, unable to shut the engine off which may drain battery, or even vehicle may roll over if the vehicle wasn't parked properly because of this. GM should extend the warranty for this issue to all the vehicle owners so that they don't have to pay out of pocket after warranty expires.

- Leander, TX, USA

The contact owns a 2017 GMC Acadia. The contact stated that while attempting to park the vehicle, the vehicle failed to shift into park. The contact mentioned that the vehicle was put into neutral and applied the parking brake to park the vehicle. In addition, the battery was drained due to placing the vehicle into neutral and applying the parking brake. The vehicle was taken to Chevrolet Buick GMC of murfreesboro (960 john R rice blvd, murfreesboro, tn 37129) where they informed the contact to continue to use the method until they were able to review the vehicle on the scheduled appointment date. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 60,000.

- Murfreesboro, TN, USA

My 2017 had a shift to park issue. When parked and the car is in "park" the car will say "shift to park" which causes you not to be able to lock the car, or to make sure the car will not roll away. Took the car to the dealer and had all components replaced, however they information me that this will not fix the problem as the parts are made incorrectly, so unfortunately it will happen again at some point. My second issue with the Acadia is when you are in cruse control, the car will automatically apply the breaks (abruptly and hard) for no reason. GMC says that it could be when the sensors get dirty or overheat, however it makes you very uneasy knowing your breaks can mash on at anytime by themselves when you are using the cruise control system.

- Peyton, CO, USA

The contact owns a 2017 GMC Acadia. The contact stated while driving, the shift to park failed to move from auxiliary mode and drained the battery. Additionally, the vehicle moved. There were no warning lights illuminated. The vehicle was taken three times to garlyn shelton Buick GMC (5625 S general bruce dr, temple, tx 76502, (254) 598-4128) and diagnosed that the shifter boot and shifter pin needed to be replaced. The vehicle was repaired however, the failure recurred. The manufacturer was not contacted. The failure mileage was 30,000.

- Belton, TX, USA

Vehicle has developed the shift to park issue that doesn't allow the SUV to be turned off when actually in park. It's a safety issue.

- Round Rock, TX, USA

Car states 'action required, shift to park' when shifter is in park and car is turned off, causing me to be stranded in my car. Accessories stay on and doors will not lock.

- Louisville, KY, USA

The contact owns a 2017 GMC Acadia. The contact stated that upon pulling into his driveway at 10 mph, the cvc axle detached from the vehicle. The contact researched and discovered NHTSA campaign number: 17V516000 (power train) which he linked to the failure. The contact called jones motor company (545 florence rd, savannah, tn 38372) and had the vehicle towed to that dealer. The contact was informed that he had to pay a diagnostic fee to determine the failure. The contact declined the diagnostic fee and the vehicle remained in the possession of the dealer. The vehicle was not included in NHTSA campaign number: 17V516000 (power train). The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was 75,680. The VIN was not included.

- Olivehill, TN, USA

When shutting vehicle off after placing in park the display panel shows a message telling driver to shift to park. The vehicle engine will shut off but the electrical system won't shut down until the battery protection timer shuts everything off. Doors don't want to lock but will eventually as well. This occurred previously when the vehicle was about 18 months old and the dealer made a repair consistent with the manufacturers tsb that was issued. The vehicle is now out of warranty and the dealer is trying to get GM to participate in the repair but it's been 3 weeks with no answers.

- Royal, IL, USA

My vehicle would not shut off after I put the vehicle in park. Kept getting messages that said "shift to park" when it was already in park. The dealer replaced the shift mechanism and the wiring harness at my expense.

- Mars, PA, USA

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

The contact owns a 2017 GMC Acadia. The contact stated that the vehicle failed to shift into park making it difficult to shut-off the vehicle. The contact stated that the engine failed to shut-off sometimes and would not allow the driver to leave the vehicle. The shift to park message was displayed on the instrument panel. The failure recurred several times. The vehicle was taken to riverhead Buick GMC dealer located at 1423 old country rd, riverhead, NY 11901, where the technician replaced the wiring harness however, the failure recurred. The vehicle was taken back to the same dealer who replaced an unknown part in the gear shifter. The manufacturer was made aware of the failure and provided a case number. The contact stated that the vehicle was repaired. The failure mileage was approximately 29,000.

- Rocky Point, NY, USA

Shift to park message on the info panel and car did not go into park and began rolling away. Had to turn car back on to shift into park. On occasion, it requires multiple start/stops. This is safety issue in that if you think you're in park the vehicle can roll and potentially hurt someone because it's not actually in park. The car was stationary when the problem occurred.

- Wapella, IL, USA

The "shift to park" warning message shows up and won't permit car to be shutoff. Vehicle is stopped and at rest and is placed in "park" as designated by shift lever light and dashboard indicators, and the auto door unlock feature activated correctly when placed in park. On 9/21/20, it took me about 10 minutes of trying different positions and by physically moving vehicle to a different parking space. Problem occurs sporadically. This same problem has occurred a total of about 5 times in the last 2 weeks but not as severe as this last time. Vehicle was previously serviced 11/2019, when vehicle was under warranty with 10,062 miles for the same issue in which the dealer replaced a shifter harness. Now, 9/21/20, 10 months later, and 12,400 miles, the same problem has re-emerged. The vehicle is now out of warranty. This is obviously a manufacturing or engineering defect.

- Nazareth, PA, USA

The contact owns a 2017 GMC arcadia. The contact stated while stopped with the vehicle in park, the shift to park message displayed on the instrument panel with an abnormal chime heard. Additionally, the doors failed to lock securely. The contact called shelton Buick GMC Inc (855 S. rochester rd, rochester hills, mi 48307, (248) 266-2156) and was informed that the repair was not covered under warranty. The vehicle was not diagnosed nor repaired. The manufacturer was contacted. The failure mileage was 25,000.

- Rochester Hills, MI, USA

I will shift my car to park and then I go to shut off the car and I get a message that pops up saying "shift to park" I can not lock my car and wont shut off filly until I can get it to shift into park fully. Vehicle was stationary when I shifted to park it had happened about 10 to 25 times in the last month

- Ashford, CT, USA

The vehicle does not recognize when it is in park. Sporadically vehicle will not go into park and thus can't leave vehicle. Safety concern! I understand this is a known issue.

- Georgetown, KY, USA