Power Train Problems of GMC Acadia - part 2

2018 GMC Acadia comes up with an error message "shift to park" and does not allow me to fully engage my car into the parked position when stopped and parking.

See all problems of the 2018 GMC Acadia 🔎.

The contact owns a 2019 GMC Acadia. The contact stated that while driving at an undisclosed speed, the vehicle stalled unexpectedly. There was no warning light illuminated. The vehicle was able to be restarted. The contact also stated that while coming to a stop and attempting to depress the brake pedal, the vehicle lost motive power but unexpectedly lunged forward. There was no warning light illuminated. The vehicle was restarted after the failure. The vehicle was towed to the dealer, where it was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA hotline for assistance. The approximate failure mileage was 85,695.

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Vehicle experiences multiple simultaneous failures including “steering assist reduced / drive with care” warning, extremely loud cooling fan operation, temperature gauge not functioning, tire pressure monitoring system failure, and widespread electrical issues (windows, mirrors, infotainment delay). Issues occurred together and are consistent with numerous owner reports for 2019 GMC Acadia models. Condition affects steering assist and engine temperature monitoring, creating a potential safety risk.

The contact owns a 2018 GMC Acadia. The contact stated that while starting the vehicle and attempting to shift into park, the vehicle failed to recognize that the transmission was in park(p). There was no warning light illuminated. The contact stated that several attempts were required to shift the vehicle into park(p) to turn off the vehicle. The contact further stated that on other occasions, the vehicle remained stuck in park(p) and failed to shift into drive(d). The contact related the failure to TSB: 19-na-205. The dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure, and a case was opened. The contact was referred to the NHTSA hotline to report the failure. The approximate failure mileage was 120,000.

Gear shifter will not go into park.

Shift to park alert continues to come on when car is already shifted into park. Car will not shut off without pulling car back out of park and shifting back into park. Causing a delay in all electrical attached to power down, potentially draining the battery.

Car will not shift into park therefore I cannot turn the car off without disconnecting the battery. Dangerous bc you don’t know if the car is in park or not when you have to get out and stand in front of car to life hood and disconnect battery.

The car has over the last few years not turn off due to shift to park. This is concerning, due to we cannot turn the car off unless we strike the shifter few times assuming this is the remedy. It doesn't look like there is any type of recall but there should be.

See all problems of the 2017 GMC Acadia 🔎.

In the process of taking my daughter to the emergency room I receive a dash notification on my recently purchased 2024 GMC Acadia "car overheating, possible engine failure". My gauges were within normal range and being that I was in an emergency I kept traveling. Leave hospital to head home the error message is gone. The following Monday, January 5th, heading in to work I receive the same error message on my dash "car overheating, possible engine failure". Drove to the nearest mechanic, left my car, and they discover a leak in the upper radiator hose. They call with bad news that the part is on nationwide back order. Gm admitted to a faulty design, in the process of redesign. A spac case with a local gm dealership was opened. Gm would expedite my case if I towed to a gm dealer. I would have to pay for the tow. And just how can my case be expedited if the part isn't available? it can't. I was told the redesigned hose is going on the new models currently being built. I have lost all faith in gm. Today is February 19th and my car is still at the mechanic with no eta on part delivery. I called every gm dealership parts department within 100 miles and get the same response, "we have two hoses with four cars needing it, we have 4 hoses with 8 cars needing it, the hose is hell to find, etc. ". Why has gm not issued a recall on the upper radiator hose. If you have a 2024 GMC Acadia, you will incur this same issue.

See all problems of the 2024 GMC Acadia 🔎.

The contact owns a 2019 GMC Acadia. The contact stated that while attempting to park the vehicle, the gear shifter failed to shift into park(p). The vehicle failed to turn off, with the message "shift to park" displayed with an audible chime. The contact was forced to move the gear shifter back and forth before it was recognized that the transmission was in park(p). A dealer was notified of the failure and the contact was provided an estimate for the repair. The vehicle was not yet diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 69,000.

The contact owns a 2018 GMC Acadia. The contact stated that after parking and then attempting to turn off the vehicle, the message " shift to park" was displayed. The contact stated that the vehicle was able to be parked and turned off successfully after various attempts, which included restarting the vehicle and engaging the parking brake. The vehicle was not diagnosed or repaired by an independent mechanic or a dealer. The manufacturer was notified of the failure and referred the contact to the NHTSA hotline for assistance. The failure mileage was approximately 80,000.

I see where GMC Acadia is have a recall on transmission and if it’s the description of my two GMC Acadia’s, but when I put my VIN number in it doesn’t have a recall.

Started getting a warning indication when starting the vehicle that stated some portion of driver assist was not functioning (or some verbiage close to that). We didn't notice any difference in the operation of the vehicle and took it to a service shop after about a week. They did some testing and discovered the problem. I am not mechanical at all but they said there were several technical bulletins from the manufacturer that led them to the problem - a bent pin on one of the rocker arms. I am going to upload the technical bulletins (3) they provided me as well as the invoice (3 pages).

Shift to park message has appeared again and the engine will not cut off. First happened in Feb 2020, mileage was 31,143. Took to dealer and new wiring harness was installed. Had to take back to dealer April 2020 for same problem; shifter assembly was replaced at that time. Shift to park message came back on August 2023. Took back to dealer and shifter harness replaced again and jumper harness was installed. Mileage was 52,993. Shift to park message has once again appeared, December 2025. Having to put car in park and push engine on/off button numerous times before engine will finally shut off. . . . . Sometimes having to unhook battery in order to kill the engine. This will be the fourth time we have had the same recurring issue repaired. My husband read through over half the 352 registered complaints and at least three fourths of them were all about the shift to park problem! as a female, I don't feel safe driving my Acadia not knowing if the engine will cut off or if it's actually in park or if the car will roll. Why can't gm fix this issue!!!!!! they should definitely be held accountable instead of ignoring the complaints!.

There is a "shift to park" alert that is listed as a recall from 2017-2019 GMC Acadia's. I have this alarm but apparently my VIN is not affected. I would like this to be investigated as it seems my vehicle should be included in the recall.

Had vehicles looked at twice and serviced once for the transmission slipping. No issues were found when looked at and light was deleted. Took to another mechanic who drained and refilled transmission. Transmission still slips after service. This happens at acceleration and continues til 3rd gears where it jerks in between gears. Stops while driving continuously, the starts up again if stopped for any reason.

See all problems of the 2021 GMC Acadia 🔎.

The contact owns a 2018 GMC Acadia. The contact stated that while the vehicle was parked and turned off, the “shift-to-park” warning light illuminated with a continuous audible alert. The vehicle was unable to recognize that the transmission was in park(p). Several attempts were needed to shift to park. The battery was disconnected to turn off the audible alert. The contact stated that the vehicle was previously repaired under an associated recall. During the recall repair, the shifter and wiring harness were replaced with part numbers: gm84955381 and gm84733196. The manufacturer was not notified of the failure. The failure mileage was unavailable.

Shift to park message comes up and vehicle will not turn off. This happens frequently and so far I have been able to get it to shift into park by clicking the lever on the shifter multiple times.

My 2014 GMC Acadia constantly displays “service stabilitrak,” “service traction control,” abs, brake, and check-engine warning lights. The vehicle will not accelerate past 40 mph under normal driving. Recently, the vehicle began showing “engine power reduced” randomly without any warning, and the vehicle loses power suddenly. The obd2 code p1682 (ignition 1 circuit/relay failure) appears every time. This issue has caused the vehicle to jerk, lose acceleration, and even stall in the middle of an intersection during rush-hour traffic while my children were in the car, creating a serious safety hazard. These warnings and symptoms are constant, and the power-reduction events occur unpredictably. No official inspection has been completed by the manufacturer. The failed component is still in the vehicle and available for inspection. The malfunction affects traction control, stability control, braking systems, and engine power, putting occupants and other drivers at risk.

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Car stalls and transmission dies.

The transmission is shuttering and jerking, had it diagnosed and was told that the torque converter is going out with only 137,000 miles on my 2019 GMC Acadia.

The contact owns a 2023 GMC Acadia. The contact stated that while driving, the vehicle lost motive power in low gears while accelerating. There was a slight shudder. There were no warning lights illuminated. The contact stated that the vehicle was shuddering and shaking every 30 seconds. The vehicle was taken to the local dealer, where unknown repairs were conducted under the evap warranty. The vehicle was not diagnosed or repaired for the initial failure. The dealer test drove the vehicle but did not experience a failure. The failure recurred after leaving the dealer. The manufacturer was not notified. The failure mileage was approximately 65,000.

See all problems of the 2023 GMC Acadia 🔎.

The contact owns a 2018 GMC Acadia. The contact stated that while the vehicle was parked and occupied, the shift to park message was displayed while the vehicle was in park. Neither an independent mechanic nor the dealer was contacted. The vehicle was not taken to an independent mechanic or dealer for diagnostic testing. The vehicle was not repaired. The contact related the failure to NHTSA campaign number:17v516000 (power train); however, the VIN was not included in the recall. The manufacturer was notified of the failure and informed the contact that the VIN was not included in the recall. The failure mileage was 113,000.

The contact owns a 2018 GMC Acadia. The contact stated that while driving at an undisclosed speed, the vehicle failed to accelerate while attempting to shift gears. The contact stated that the vehicle jerked and made an abnormal sound, with the check engine warning light illuminated. Additionally, the contact stated there was black and white smoke coming from the rear of the vehicle. The vehicle was taken to the dealer, where it was diagnosed with transmission, cooling system, and fuel system failures. The dealer also determined that the engine was leaking oil. The dealer informed the contact that the vehicle required several repairs. The vehicle was not yet repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 126,000.

Urgent safety defect — recurring “shift to park” — rollaway risk vehicle: GMC Acadia | ~99,684miles same defect repaired free under gm goodwill in 2021 (shifter replacement, TSB 19-na-206) after 4 failed attempts. Now failed again in 2025 — vehicle will not shut off, drains battery, risks unintended rollaway. Gm dealer refuses repeat coverage despite prior admission of defect. This is a known design flaw — thousands of complaints — no recall. Demand immediate safety recall — this is a fire/rollaway hazard. Attached: 2019- 2021 repair order ($0), TSB 19-na-206, prior NHTSA complaint, previous tac case: 9-6623251184.

1. Shift to park failure, p0700/p187e internal sensor, causing me to have to get a rebuilt transmission. 10/2025 2. Transmission shudder/hard-shifting ongoing 2022-2025 3. Coolant/thermostat issues. Steering assist reduced" message, fans stay on high, no ac, engine temp on zero ongoing since 2024 3. Start/stop button failure multiple times (replaced 3 times) 4. Rack and pinion/steering gear (would not return/ got stuck while turning) got new rack and pinion 2023 5. Water pump leaking, replaced 4/2024 6. Since 2023, have had ongoing “timing over advanced”, warning issues since 2023. This is too much for a new car!!! I’ve owned many cars and never had this many issues!!! there appears to be multiple design flaws with this model and similar models!.

See all problems of the 2020 GMC Acadia 🔎.

Driving down the street and I heard a extremely loud drop. The transmission went out with no warning or even indication of trouble. The vehicle ran very smooth until that point.

The contact owns a 2019 GMC Acadia. The contact stated that while the vehicle was parked, it was unable to recognize that the gear shifter was in park and experienced a shift to park failure. The dealer was contacted, but the vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 21,000.

I own a GMC Acadia 2019. The problem that is happening has to do wiyj "shift park" message I am getting when I turn off my car. It is "in park" but this message in instrument panel shows and keep beeping. After several shifting in different gears stop sometimes , sometimes not. I see some messages that there has been a recall, others saying not. I see a lot of Acadia 2019 owners are having this issue. I will try to coontact dealer but it looks like they are not helping others.

The contact's boyfriend owns a 2017 GMC Acadia. The contact stated that while driving at various speeds, the vehicle jerked abnormally while depressing the accelerator pedal. There was no warning light illuminated. The vehicle was taken to an independent mechanic who was unable to determine the cause of the failure; however, the mechanic stated that the failure was related to the transmission. The contact called two local dealers about the failure, and both stated that the vehicle could not be serviced in the near future. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 106,000.

My 2023 GMC Acadia consistently makes a sound at lower speeds when it is changing gears. For example, accelerating or accelerating for stoplights. The sound is kind of a ka clunk. The technician can find nothing and does hear the sound when we go for a test ride. I am worried that the sound indicates a transmission problem. The VIN search does not show a recall for my vehicle.

The contact owns a 2019 GMC Acadia. The contact stated that after arriving to her destination and shifting into park(p), the message "please shift to park" was displayed and the vehicle was unable to be turned off. After several attempts, 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 to be diagnosed or repaired. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA hotline for assistance. The failure mileage was, 88,000.

Thermostat fails. Steering assist reduced message comes up on dash. Temperature gauge stops working, air conditioning stops working and engine fans run constantly when vehicle is running. I had the dealership fix and replace under warranty the first time and now it happened again a second time.

I own a 2019 GMC Acadia slt. The problem started after arriving at my destination and shifting into park. The message "shift to park" was displayed on the instrument panel. The vehicle can sometimes be turned off and sometimes instrument panel continues to ding and does not shut off. After several attempts the vehicle can returned to normal and sometimes it does not. This problem is a regular occurrence. No warning lights illuminate. The vehicle was taken to a dealer on my way home from a long trip. The service tech stated that there has been a lot of complaints and he was surprised there were no recalls for this problem. The problem still persists on and off daily. The failure mileage was 49,000.

Received message "steering assist is reduced. Drive with care". This is related to a faulty thermostat and temperature sensor.