2018 GMC Acadia other reported problems

UNKNOWN OR OTHER

When trying to put car in park a "shift to park" notice appears on dashboard not allowing the car to be turned off. It takes multiple attemps be able to get the car into park and turn OFF. This has been an ongoing problem for several years and reported to the dealer. To date the dealer tells me there is nothing wrong with the car. Battery has been changed multiple times.

NHTSA complaint #11749867 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

While driving the temperature gauge drops from normal to cold , the dash displays " steering assist reduced" and the fan is very loud . My mechanic said the thermostat and or sensor needs to be replaced . When he resets with the reader its good for about a week and temperature gauge is normal. After seven days it repeats I only have 40,000 miles on the vehicle and its a 1,400 dollar job. I believe this should be a recall because i have seen a lot of the same complaints in this forum and what about the people who have the same problem but don't complain ?

NHTSA complaint #11749432 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

When I put the shifter to park, it still dings and tells me "shift to park" and I struggle to make it go away and to be able to make it stop and be able to lock the car. It happens every time I drive it. Thank you

NHTSA complaint #11739333 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

When I put the car in park and shut off the vehicle, I am getting a shift to park message with an audible sound. The car is in park already. Happens every time almost. It’s not showing up as a recall under my vin. Just got the car. I have seen more recall issues on Google and am concerned those will also occur which are more serious and aren’t listed either.

NHTSA complaint #11734468 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

2018 Acadia Denali with less than 50,000 miles on the vehicle. Had to replace the coolant temperature sensor and thermostat. Less than 30 days later. The check engine light came on and the code was coolant temperature sensor and thermostat. Code P0128$07E8

NHTSA complaint #11733007 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

thermostat and temp sensor issue

NHTSA complaint #11732763 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Vehicle warning light, and noise alerts when placing in park. Vehicle does not register PARKED. Vehicle has to be restarted several times and shifter moved in and out of park until registers as parked. When viewed by mechanic, it was stated there has been a recall to contact manufacturer about recall, but none noted on site.

NHTSA complaint #11728145 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Gear shift fails to register that it’s in fact in park position on gear shift but dash message reports “shift to park”, and warning beeping sound won’t stop and doors won’t lock. After restarting and reshifting the gears and / or pressing gear shift button up to 20 times or more until the dinging noise stops and only then can the car be locked. Everyday since 4/20/2025

NHTSA complaint #11724190 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Dear General Motors Customer Assistance Center, I am writing to formally file a complaint and request assistance regarding a serious mechanical failure with my 2018 GMC Acadia SLT. I purchased this vehicle when it had approximately 7,000 miles on it after it was transported from Florida. Since owning the vehicle, I have properly maintained it and had it serviced through Suttle Motors dealership in Newport News, Virginia. Recently, while driving on the highway to have tires installed, the vehicle suddenly stalled while I was in traffic. This caused a very dangerous situation, as traffic behind me was forced to abruptly slow down and I was nearly rear-ended due to the sudden loss of power. Because the vehicle was no longer drivable, I had it towed to Suttle Motors for inspection. After examining the vehicle, the service department informed me of the following issue: “The transmission solenoid valve is stuck and it has burnt the transmission fluid. The vehicle will require a full transmission replacement. The estimated cost is $7,769 with a 3-year/100,000-mile warranty.” I was extremely shocked and disappointed to receive this news. My vehicle currently has only 67,000 miles, and I have taken care to maintain it properly through the dealership. Experiencing a complete transmission failure at such relatively low mileage is very concerning, especially considering the dangerous situation it created on the highway. Given the circumstances, I am requesting that General Motors review this matter and advise whether any goodwill assistance, repair support, or coverage options may be available to help resolve this issue. I would greatly appreciate your prompt attention to this matter. I can provide service records and documentation from Suttle Motors if needed. Thank you for your time and consideration. I look forward to your response.

NHTSA complaint #11722741 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

I have been having issues with shift to park message for a yr now and it just gets worse and do not have the funds to pay for it myself bu5 see that it is a recall and gm is covering cost for other makes models of my same yr for same issue takes sometimes 20 minutes to mess with my shifter until I can finally park my car where it shuts completely off. This is a safety risk as 1 it could roll away if it isn't 2 my car could drain and die leaving me stranded by not turning off fully one time. This is ridiculous I called gm and all they just pushed me off I don't understand how this is not being taken serious especially knowing this is a known problem!

NHTSA complaint #11703790 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

I continue to get a message "Steering assist is reduced drive with care " this appears to be a very common issue with my vehicle model. it is very expensive to fix. I am just outside of warranty so it is not covered. Online indicates this is so common. It is the vehicle thermostat and sensor prematurely going bad

NHTSA complaint #11701099 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

I have owned this vehicle less than 5 years and it has had the "Shift to Park" error 3 times and has now been replaced 3 times. The 2nd time was in August 2023 and yesterday it had to be replaced again. I don't understand how a part can fail this rapidly when the vehicle is only being driven approximately 10,000 miles per year. It only has 82,445 miles. I would like for GM to issue a recall for this issue or advise who the manufacturer is of the Switch part number 84955381 and Harness part number 84733196. The parts are not that expensive but the labor to replace was $ 462.50 and total parts was $ 55.56 on the invoice yesterday. As this is an ongoing issue I would like reimbursement. I am widowed and living on one income.

NHTSA complaint #11696569 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

For the past 2 years I have been having a problem with the Shift to Park. It causes my vehicle to not turn completely off therefore draining the battery completely, I have gone through several new batteries because of this issue and has left me stranded needing to uber to purchase a new battery. Recently it started causing issues with my vehicles Antilock braking system and the stability control system although I don't know if they are all related but it is causing a hazard to drive around and it it the only vehicle I own.

NHTSA complaint #11694792 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

My Acadia has the shift to park default it has been fixed 3 times and now it is popping up again for the 4th time which means I can't turn my vehicle off it takes forever to get it to go off please help please help

NHTSA complaint #11691514 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

The shift to park in my 2018 GMC Acadia was faulty. On many occasions and randomly, the car would be in park but would not turn off, saying I needed to shift it to park in order to turn the car off. This has left me unable to turn my car off resulting in dead batteries and missed appointments and being late for work. This defect is well documented by GM in TSBs PIT5616A, 18-NA-297, and 19-NA-206, which describes the exact symptoms and repair that I had to have completed. This problem has been on going and as a teacher I cannot continue to be late for school because my car, though in park, would not turn off. Given GM’s prior acknowledgement of this defect, I believe reimbursement is warranted. I have never been notified of a recall on this.

NHTSA complaint #11686054 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

My 2018 GMC Acadia has had the "Shift T Park" alarm and indicator going off after my car is turned off and in "PARK" It only happens intermittently, but frequently enough to be annoying. The dealer and GM told me because my VIN wasn't in their recall range, they would not honor the recall. This has been happening since I purchased the car in 2018.

NHTSA complaint #11676988 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Battery saver ignited comes on and and the entire dash flickers and turns off ! This happened in a middle of an intersection and I could move my car. We jumped it and went to the nearest auto zone replaced the battery . It was pulling 89 amps . The next day it popped up again and we replaced the alternator. Upon replacing this there was oil everywhere! And we don’t know where it is coming from . Now shift into part light comes on !

NHTSA complaint #11675562 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Faulty shifter assembly (shift to park) car stays on while in park because of this issue

NHTSA complaint #11672805 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

The shift to park notification keeps coming on everytime we go to put the car into park. It takes about five to ten minutes shifting back and forth to get the car to shut off.

NHTSA complaint #11662533 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

My Acadia car has been having some problems with the shift to park. I put my vehicle on park and my doesn't turn off because it keeps saying that it hasn't shifted to park. Do to this issue my battery car has been draining and my family and I got locked in. I bought the car not to long ago and it's been an issue ever since its getting worse as time has past. I'm really wanting this fix as it can take hours to turn the car off.

NHTSA complaint #11661054 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

My 2018 GMC Acadia is experiencing an issue with the "Shift to Park" feature. When the vehicle comes to a stop and is put into park an alert comes up on the dashboard says "Shift to Park" even though the car is fully parked. This keeps the vehicle from being able to be turned off. Often times this issue is not fixed by turning the car on and re-shifting to park and i have to drive the vehicle and try again. This happens over 50% of the time I try to park this vehicle.

NHTSA complaint #11656344 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

my arcadia shift to park appears when i park my car beginning to happen all the time now .started last month and getting worst i have contacted the dealership and was told no recalls .my car is a 2018 with 34,000 miles on it . i am very disappointed with this vehicle . if you can't stand by your product i can't see myself buying another one. thank you a very disappointed customer [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11655827 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

My car will not recognize when it is in park. The shifter will say park but the panel says on and all accessories are staying on. It started out doing it every once in a while but now it does it nearly every day. At work I have had to just leave it like that in the parking lot to keep from being late for work and the accessories stay on. Once I had to call for a jump start after work because my battery was dead. I’m not sure if it can be stolen or not when I have to leave it like that but I don’t think it could possibly be safe. And I can’t afford to call for jump starts all the time. Thank you and please help.

NHTSA complaint #11654507 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Shift to park msg appears randomly causing the car to not completely turn off even though car is in park. Have to turn car back on and shift to drive back to park couple of times before msg goes away. I see so many people with the same problem why isn't there a recall this is a safety issue. The 1st time my warranty covered the repairs , 2nd time around I have to pay of pocket.

NHTSA complaint #11646413 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

The shifter, the shift to park displays and dings and stays on the dash after I've put it in park and turned off the ignition. It started the first of 2024 and has gotten worse and now it's almost every time.

NHTSA complaint #11645948 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Shift to park does not complete. System warning comes on and will not turn off until I restart vehicle and redshift to park. Multiple shifts are required to allow the vehicle to accept park. This has been happening for approximately 1 years.

NHTSA complaint #11645187 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

While car is in park, I get the "Shift To Park" warning after driving the vehicle.

NHTSA complaint #11644415 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Shift to park. Dash stating shift to park when vehicle has been put in park. Unable to turn vehicle completely off.

NHTSA complaint #11643275 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Having shift to park warning and dinging after shifting the car into park and turning off the car. Cannot leave the vehicle. Then can’t move the shift lever so have to start the car And attempt to shift car into park again which does not always allow yu to shift to park and leave the vehicle again. If this is such an issue why is there not a recall? I have read many articles online about this issue.

NHTSA complaint #11641389 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

when in park dash still say shift to park ....batteries died lights stay on staibility pops up on dash car have to be jumped then same issues

NHTSA complaint #11640198 — an unverified report by a vehicle owner.