Vehicle refuses to turn off due to "Shift to Park" error being displayed. Vehicle also gives "Driver assist unabled. Drive safely" message and AC will not cool and vehicle coolant gauges will not work.

- Wilsonville, AL, USA

After noticing my AC was not cooling, I began receiving a -??steering assist is reduced drive with care-?? notice every time my car was started. My car is more difficult to steer. It has been assessed by a certified mechanic and found that the coolant temperature probe is malfunctioning and the ECM will either need to be fixed or replaced. Due to malfunctioning power steering, I do not feel safe driving this vehicle until it is fixed.

- Bryan, TX, USA

The contact owns a 2019 GMC Acadia. The contact stated while driving 55 MPH, the electric power steering (EPS) warning light illuminated, displaying the message "Steering assist Might be Inoperable". The contact stated that following the message being displayed, the vehicle overheated. After restarting the vehicle, the vehicle returned to normal functionality, but the failure had since become a regular occurrence. The vehicle was taken to the dealer, who diagnosed a failure with the thermostat. The vehicle was repaired. The manufacturer was notified of the failure but referred the contact to the NHTSA Hotline for assistance. The failure mileage was 70,000

- Keene, NH, USA

The contact owns a 2019 GMC Acadia. The contact stated that while attempting to shift to park(P), the transmission failed to shift into park, and the contact was unable to turn off the vehicle. The contact also stated that when she started the vehicle, the reduced steering power warning light illuminated, and the failure caused the battery to be replaced once. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 97,000.

- Linesville, PA, USA

The steering assist code comes on, the temp gage goes down, and it-??s immediately hard to steer. All the lights come on, and drained the battery, this has happened several times

- Ceres, CA, USA

Traveling at interstate speeds the vehicle had an short in the Body Control Module due to the HVAC drain leaking into the vehicle. The vehicle displayed a series of alarms brake, steering, and shutoff. We had no power, steering, brakes, or lights. The issue was discovered by Dave Sinclair dealership. It had been in for a sensor issue 3 months prior.

- House Springs, MO, USA

Vehicle is constantly giving -??shift to park-?? error. The steering mechanism has also been compromised, and the vehicle makes persistent jerking motions with accelerating. This could be quite dangerous.

- Covington , LA, USA

For a few months I intermittently get an engine light on, the temperature gauge goes to zero, the AC stops working, and an error that driver assist in unavailable. This will happen for a fee days and return to notmal where everything is fine. This happens on and off again. I google searched this and it is a huge problem with GMC Acadias. I used an obdII scanner and get a P0128 coolant error when this happens even though the temperature is fine. I just recently went over the new car warranty and GMC will not tell me if this is covered or not.

- Monument, CO, USA

Steering assist warning came on and my wife panicked. She was on the highway and it came on and she could fill it in the stereo wheel. Temperature gauge stays on 0.

- St.Louis, MO, USA

The contact owns a 2019 GMC Acadia. The contact stated while driving at an undisclosed speed, the vehicle hesitated to accelerate with the "Steering Assist Reduced, Drive with Care" message displayed. Additionally, the temperature gauge remained on cold. The vehicle was taken to the dealer; however, no failure was found. The failure recurred, and the vehicle was taken back to the dealer, where it was determined that the thermostat needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 44,000. The VIN was not available.

- Henderson, KY, USA

While driving the temperature gauge shuts down completely to C - the check engine light comes on and a message appears on the dash saying "Steering Assist Reduce Drive With Care". Any air conditioning goes from cold to hot and the fan under the hood goes to high automatically and wont shut off. We have been informed that this is a known error that has existed for a long time now, with no recalls to date. I cannot schedule my vehicle for repairs yet because I do not have the money to pay for the repairs. They are saying that the placement of the thermostat and sensor, which need to be replaced in order to fix this problem, are located in a very difficult spot to get to. Saying that it will take upwards of 4-5 hours to get everything fixed, which increases the amount of money to fix this issue. My 2019 GMC Acadia just started doing this about 2 months ago and I have 54000 miles.

- Athens, IL, USA

Initial battery died completely when vehicle was 2 years old (17 months ago). This week got a steering assist drive with care message and everything pointed to codes signaling low voltage. Battery tested with a bad cell. GM will not cover the cost to replace a battery when not one but two have gone bad well before the middle of their earful lives. GM claims there is nothing electrical drawing from the battery causing both the go array. Bad customer service on GM-€™s part. Logically this issue should be covered as it is not a typical maintenance replacement. It-€™s something causing two batteries to go bad!

- Wilton, CT, USA

After exiting the highway onto a side road, the vehicle began to shake violently (like we were on a very bumpy road). I pulled into a parking lot thinking we had a flat tire. Then the vehicle suddenly came to a stop and would not move forward and would not move backwards. There was no flat tire, but I noticed that the front left tire was turned inward in the direction that the steering wheel was turned, but the front right tire was also turned inward at a much greater angle. At first glance, I could see behind the tire that the tie rod had detached from the front right tire resulting in no steering capabilities for the vehicle. The tie rod has a large bolt that attaches it to the tire, and the bolt was missing. Had this happened on the highway just a few minutes earlier, the resulting accident could have been catastrophic. I paid to have the car towed to the dealership and when the tow truck driver arrived he took one look at the vehicle and said "this should have never happened". The dealership could not explain how the tie rod lost the bolt and there was no visible damage to the tie rod. My concern is that had this happened at 60mph, the car could have flipped or the car would have been abruptly turned into the median wall at 60mph. Tried to upload images, but could not upload.

- Seattle, WA, USA

Steering Assist reduced drive with care" displayed on screen when I was driving. The temp gauge stayed on C, Heat works fine, Happened for a few days.

- Blackstone, MA, USA

Vehicle will have a message on the dash that says -€œdrive with care steering assist is reduced-€, the fans will come on and stay on, and the temperature hand will quit working along with air conditioner. It has not been inspected, I am not sure if the steering assist being reduced could cause any harm to myself or others.

- Vienna , GA, USA

"Steering Assist reduced drive with care" displayed on screen when I was driving. The temp gauge stayed on C, the a/c did not work and engine fan came on full blast. After a couple days of this, it went back to normal. Coolant was checked and full at correct level.

- Dover , DE, USA

I-€™m not sure but a warning came on that said steering assist reduced drive with care and my temperature gage and AC weren-€™t working all of a sudden when it happened

- Webster, TX, USA