2017 GMC ACADIA Complaints

On [XXX] my 2017 Acadia Denali started driving poorly and a steering assist reduced message appeared. I had O'Reilly scan for error messages and they were: P0128 and P0826-00. The dealership confirmed that they would need to replace the thermostat. The Buick GMC Beaverton technician made a video of my vehicle: [XXX] My safety was put at risk due to the risk of my steering going out. My car intermittently was having trouble engaging in driving (it randomly acted like it was not firing, it was "jerking"), I heard my cooling fan come on immediately the next day when started my car to drive it to the GMC dealership. I feared that my car would just die going over a mountain pass without cell coverage. On [XXX] I had the same steering assist reduced message and then replaced my thermostat at 39,228 miles. I will need to replace this again, 37,638 miles later. The GMC service technician mentioned that this is a typical problem for my car, and I have discovered a 2022 Acadia recall for their thermostats. Please extend this recall to include the 2017 Acadia. The component was not inspected by the police or insurance rep (yet), but it was inspected by the GMC dealership and O'Reilly veri scan. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Vehicle will not shut off, keep showing shift to Park, even when vehicle is in park with parking brake engaged. This has been a common occurrence and I see where people discuss a recall, but one is not available for my VIN.

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.

My car will not park. I get a shift to park error message. I tried restarting and shutting it off. Didn't work. I ended up putting it in neutral turning on the emergency brake and then shutting the car off. I have had no problems with this car to this point, I am a single car owner and my car must be reliable. I can't spend a half hour trying to get the car to shut off.

Tire size is P235/65R18 I purchased these tires in December of 2024. I am concerned that these tires were built without the correct compound to be qualified as an all-season. I have never had tires this bad in snow, even though they are all season brand-new tires with full tread. I immediately bought a set of snow tires for the vehicle. I again tried these tires in snow in November of 2025 after they had roughly 10,000 miles on them, and again found them to be the worst tires in snow that I have ever driven. I am concerned these were a mis-build.

Pulled into a parking space, put the car into park and tried to shut the car off. The warning system said I needed to shift to park. I was in park but could not shut the car off because the car thought I wasnt in park. Took 15 minutes of shifting from park to all gears and shaking the gear shifter before it finally let me shut the vehicle off. This is now the second time this has happened and ive had to have the same thing repaired. They are replacing the whole shifter assembly. Error reads SHIFT TO PARK. This is happening every few years now and at almost 1000 dollars to repair and only lasting a year or so, this is ridiculous.

The car is in park & ignition button has been hit to turn vehicle off. When engine is turned off all interior, exterior, dash, & ignition switch lights remain on with a notification on the dashboard stating to "shift to park". The doors can not be locked when this message is on the screen. It can take anywhere from 30 seconds to 15 minutes for the lights & dash to go out, allowing you to exit & lock the car. If you exit the car while the message still appears on the dash, not only are the lights on & unable to lock the car, but if someone where to get into the car, without the key fob, they can start the car & drive off. My husband & I were in a shopping center parking lot in July 2025 where the "shift to park" error came on. We sat in the car, 110 degrees outside, for 10 minutes waiting for the car to shut down. Finally we had to exit the car because we could no longer take the heat. My husband went back to the car, 5 minutes late, while I was in the store to see if the car had finally shut down. To his surprise the lights and dash where still on. He noticed the start button light was also still on & thought if he hit the button the lights would shut off, but no, the car actually started & again he did not have the key fob with him. This is a serious issue & needs to be addressed & I do not feel that I should be paying for this repair. My husband unexpectantly passed away in Sept 2025 & now I am left to deal with this on my own. I have to get this issue fixed as I can not take the chance someone will take my car someday nor do I want to continue to sit in my car for 10-20 minutes waiting for it to shut down. The dealership I took it to diagnosed it as due to a faulty switch in the shifter which means its poor workmanship & not related to owner usage. Please add this to the recall list so that I can get it fixed quickly or if I have to get it fixed prior to being approved by you I can at least recoup my money. Thank you

The contact owns a 2017 GMC Acadia. The contact stated that after the vehicle was parked and the gear shifter was shifted to park(P), the vehicle failed to turn off as intended. The message "Shift to Park" was displayed on the instrument panel. The contact stated that the vehicle was parked, and the gear shifter was shifted to park(P), however the vehicle failed to recognize that the gear shifter was in park(P). The contact jiggled the gear shifter button several times and was able to turn off the vehicle. The failure was intermittent. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired, and the failure persisted. The manufacturer was notified of the failure. The failure mileage was approximately 50,000.

While driving get notice lane departure not working and thermostat registered zero, when code scanned, states low thermostat temp and able to reset with code reader. Will reoccur in minters to days later. This is an electrical issue to to the ability to reset with a code scan tool, but also a safety issue since it also effects the electrical safety ability associated with the sensor.

When I’m driving a warning comes on my DIC screen that says “ACTION REQUIRED STEERING ASSIST IS REDUCED DRIVE WITH CARE”. The AC does not work and the temp gauge goes to cold with the radiator fan blowing at full speed. My car has done this since I purchased it used in 2019 and when I call dealer they say there is no recall and $1200-1800 to replace a sensor and thermostate. I have not had the issue fixed yet.