2017 GMC Acadia Power Train

The contact owns a 2017 GMC Acadia. The contact stated while driving at an undisclosed speed, the transmission unexpectedly downshifted, with the shift to park message was displayed. The contact attempted to restart the vehicle, but the vehicle failed to shut off when the contact attempted to engage the parking brake. The contact forcefully engaged the parking brake to shut off the vehicle. The vehicle was taken to the dealer where it was determined that the transmission failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and referred the contact to the NHSTA Hotline for assistance. The failure mileage was approximately 13,000.

The "shift to park" warning light comes up every time I put my car in park. I have to move it back and forth multiple times to get it to acknowledge that its in park or the vehicle will not shut off. This is a dangerous situation in that the car could easily roll when I am not in it. I know that this is an ongoing issue with the 2017-2018 GMC Acadia and don't understand why GMC won't issue a recall for this. If this were to cause injury or an accident then they are 100% liable. I started having these issues about a week ago. My husband took it to the dealership and they told him that its not a recall or under warranty. I cannot afford to fix this myself at this point.

Violent shifting in the transaxle when vehicle is shifting between lowers gears. Transaxle causing a shuddering vibration on inclines. It feels like the engine is misfiring, but it is the torque converter/transmission/transaxle failing.

While parking, cannot turn off the vehicle because of a warning to shift the transmission to park, even though the shifting mechanism is in the park position. Happens very frequently where sometimes up to 10 minutes trying over and over to safely park the car. Has been happening for all of 2024 but getting increasingly more difficult to park.

The car will not shift into park from drive. When trying to park I have to shift from drive to park several times before it will finally go into park. It is getting worse.

Car will not shut off. Shift to park problem

The contact owns a 2017 GMC Acadia. The contact stated that the gear shifter acknowledged while shifting to park and activated the Press-to-Start button to turn off the vehicle. The message to shift to park was displayed on the instrument panel while the gear shifter was already in park. The dealer was contacted and confirmed there was no recall on the VIN. The vehicle had not been taken to the dealer. The vehicle had not been diagnosed or repaired. The manufacturer was informed of the failure. The manufacturer confirmed that the VIN was not included in a recall. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was 36,000.

Many times after shifting the car into park, a message is displayed saying that the car needs to be put in park. It takes many time of turning the car on and off and moving the shift back and forth in order to get the message off and get the car to shut off. I notice that some 2017 and 2018 Acadia models have received recall notices addressing this problem. Our VIN number does not show up in the recall notices. Is there a reason why our car would not be covered as we have the same issue as cars that have received recall notices. Any help that you could provide would be very much appreciated. It is a very frustrating problem.

The contact owns a 2017 GMC Acadia. The contact stated that after parking the vehicle and shifting to park(P), the vehicle failed to shut off when the START/STOP button was pressed. The cause of the failure was not yet determined. The manufacturer and local dealer were contacted regarding the failure, but no assistance was offered. The failure mileage was 36,000.

I don’t know specifically what component but feels like drive stuff. Yes it is available for inspection upon request. Driving during acceleration while entering highway vehicle started to surge or shutter almost total loss of vehicle acceleration and slowed down almost causing the vehicle behind me to hit rear of my vehicle. Mechanic says transmission issue and can be reproduced at times. Symptoms are gradually getting worse. No light other than tire pressure sensor.

For over 2 years now I continue to receive "shift to park" message when I am already in park and trying to turn off vehicle. I can't shut off and have to shift to reverse and/or drive then back to park several times or shove the gear shift towards park for it to finally detect I am in park. I have been setting parking brakes out of fear vehicle will roll due to this issue. Yet, even with all my maintenance, if it doesn't happen during oil change or tune ups dealer nor repair shops aren't diagnosing and issue.

There's a shuddering, clanking sound coming from the torque converter when the engine shifts gears at 25-35 mph. I also noticed that it happens when it transitions from 4 cylinders to 6 cylinders. There's a sweet spot somewhere in there. It has also happened on the highway from 65-75 mph. This also happens when it's switching from 4 cylinders to 6 cylinders.

Incident: the drivetrain shudders and experiences hesitation while attempting to accelerate, and car surges forward when breaking due to what seems to be an issue with the tranmission. This present concerns with potential stalling while driving or the car surging into other vehicles. No indicator lights or error codes are displayed. The presence of this problem in multiple GM vehicles is confirmed by service bulletin 18-NA-358. The safety concern related to this defect should warrant a manufacturer recall to fix the know n defective parts. The vehicle has not yet been repaired. Will request to retain defective parts for inspection upon repair.

The contact owns a 2017 GMC Acadia. The contact stated that upon reaching her destination and shifting the vehicle to park, the vehicle failed to recognize that the gear shifter was in park(P). As a result, the vehicle displayed a warning message reading, "Action Required - Please Shift to Park," and the contact was unable to lock the doors until the failure was resolved independently. The vehicle returned to normal functionality, but the failure became a regular occurrence. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 44,000.

The transmission in the car failed. These failures are a known problem with this vehicle and while attempting to get assistance from GM, they refused to offer any assistance, compensation or otherwise. I understand the transmissions in these models are part of a larger inquiry. I would like to be compensated for having to have the transmission completely rebuilt after less than 7 years of ownership. GM has known and willingly decided not to repair these. While outside of warranty, this is clearly a design and manufacturing flaw.

Car displaying "shift to park" when in park. This has already been addressed once during my ownership. The Shifter Assembly was replaced. Car will not turn off with "shift to park" alert. It is now doing it again. This is a well known issue.

There is a big time shudder and the dealer will not believe me because it doesn’t do it for them. They did admit there is a problem but won’t fix it. I did the transmission fluid exchange like they said and still the problem. I see service bulletins for it but no recall. It’s is now out of warranty and I will have to pay for it. This is not right

THE ERROR 'SHIFT TO PARK' CONTINUOUSLY SHOWS UP ON THE DASH AREA AFTER I HAVE SHIFTED TO PARK. ALL ELECTRONICS THAT I CAN SEE STAY ON. I AM NOT SURE IF OTHER ELECTRONICS THAT I CAN'T SEE STAY ON. THE VEHICLE ENGINE WILL TURN OFF WITH THIS MESSAGE LIT, BUT I CANNOT LOCK THE DOORS.

I have a 2017 GMC Acadia with what I call a "Shift to Park" issue. This originally showed up with about 27,XXX miles on the car. It was repaired by the dealer on 9/25/2019. It worked perfectly until it started back up about six weeks or so ago with approximately 57,XXX miles on the car. I was told when it was originally fixed that they knew the issue and had an earnest fix. Not they want >$500 to fix a problem that they were supposed to fix the first time. Here is the issue. When you shift to park, and try to turn the car off, you get an error message that you need to "shift to park". I assume that the car is in park, but not sure with this warning message. You have to start it back up multiple times and play with the shifter. The other option is to let the warning keep flashing and wear the battery down. I have replied the battery on this car two times. When researching this issue on the internet, I see that there are several class action lawsuit for this issue so GM is well aware of the issue. They have apparently figured out the issue because it only affected the 2017 and 2018 Acadias from what I can tell. AS you can tell fro the mileage, this car has low annual miles and ha always been serviced by a GM dealer.

This model is know for transmission shudder and you put out a memo. I brought the car back under warranty and said it was fine. Now it needs what the memo said and torque converter. Car is out of warranty and they want to charge full price. There should be a recall on this model

Ever since I bought this vehicle 75% of the time I put the vehicle in park and turn the car off the “shift to park” warning light comes on and I have to jiggle the gear shift until it goes off and allows the car to turn off. This can take up to 10 min or sometimes starting the car and turning it off works but that is less times than not. This has been ongoing since I have owned the car.

The contact owns a 2017 GMC Acadia. The contact stated that on various occasions after shifting into park(P), it was not recognized and the "Attention Required, Shift to park(P)" message was displayed. The contact stated that multiple attempts at shifting the gear into neutral(N) or reverse(R) were needed for the park(P) to be recognized and for the contact to be able to turn off the vehicle. The contact also stated that while driving at various speeds, the transmission was slipping. The vehicle was taken to an independent mechanic, where it was diagnosed that the transmission needed to be replaced. The manufacturer was made aware of the failure. The approximate failure mileage was 150,000.

The contact owns a 2017 GMC Acadia. The contact stated that while parking the vehicle, the shift to park warning light was illuminated. The vehicle was taken to a dealer where the shifter assembly was replaced; however, the failure recurred. The manufacturer was made aware of the failure. The failure mileage was approximately 20,000.

My Wife and I purchased the 2017 GMC Acadia All Terrain in August 2017. It always had some low gear hard engagement issues. It also had issues of not locking into park when placing in Park. If we released and re-shifted it would engage. On two occasions we had the GMC dealership Durand GMC Leominster MA. check the transmission. Around 34,000 miles and again around 55,00 0 miles On both occasions they claimed they could not recreate the incident I complained about. I told them I believed that to be impossible as it was common, especially going up hill. The service manager was adamant that their was no issue. As I was close to my powertrain warranty expiring I asked again with the same response. In May we started having serious transmission slippage, It became dangerous so we took it to Durand and they found a hole in a fluid tube caused by wear from a support clip. Their repair cost was high, I took it to a respected mechanic. He repaired the tube, unfortunately, the slipppage got worst and we will replace the transmission. My internet research shows many incidents like mine. I want to make it known that my vehicle concerns were swept under the rug. GMC repair video link Please watch the video of YOUR vehicle at this website: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

This is a known issue with GM 2016-2019 various models including my 2017 Acadia . the shift mechanism does not know that it is in Park position and so indicates "shift to park" on dashboard lights. Therefore ignition switch stays on and accessories that are on will run battery down in a couple of hours. Sometimes the engine will not cut off until you turn it on and off many times. The dealer estimates cost to fix of between $500 and $700. They want an additional $125 for diagnosis, which they already know problem. I found the Service Bulletin on it (19-NA-206) which calls for $42.43 in parts and 1.4 hrs labor. Many people are being ripped off on this problem, which should be a manufactor's recall ! They continued to use defective parts for years after they were aware of this hazard. Please HELP ! I don't think that I should have to pay for this repair!