2019 GMC Acadia electrical system problems

Related recalls

No recalls on file.

What owners say

1. Filed Sep 19, 2026VAElectrical SystemTransmission & Drivetrain

   While attempting to turn vehicle off, the message shift to park was given. Could not shut vehicle off! Has happened multiple times in the past, then disappears for awhile. Comes back again at will. Have seen multiple complaints on this issue falling back to a defective micro-switch within the shifter assym. Former GM tech here---

   NHTSA complaint #11765518 · source
2. Filed Jun 27, 2026PAElectrical SystemOther / Unknown

   Shortly after purchasing my 2019 GMC Acadia with 52,000 miles on it, my wife parked the vehicle in our driveway and shifted the transmission into Park. When she pressed the push button to shut the vehicle off, the instrument cluster displayed a "Shift to Park" message even though the shifter was already in the Park position. Because the vehicle did not recognize that it was in Park, it would not shut off completely. The radio remained on, and the doors could not be locked.…

   NHTSA complaint #11746961 · source
3. Filed Jun 26, 2026MEElectrical SystemTransmission & Drivetrain

   Problem 1: I got the car 2 years ago, and it keeps telling me to "Shift to Park" even though its in park. That's been happening for the whole time I've had it. It does throw a code for it on the scanner machine. I have to shift it back and forth sometimes 3 times and sometimes 17 times. It just keeps beeping over and over and won't shut off. I am having a mechanic look at it Tuesday but hoping it doesn't cost a lot. But no recalls on my car. Problem 2: For the last 4 months…

   NHTSA complaint #11746660 · source
4. Filed Jun 7, 2026KYDriver Assistance & Safety TechElectrical System

   Thermostat in these are all bad and everyone keeps having problems with them. Also forward collision warning and steering stability warning come on. Thermostat needs to have recall. Everyone is having the same problems.

   NHTSA complaint #11742603 · source
5. Filed May 15, 202648,500 miCTElectrical SystemEngine

   The contact owns a 2019 GMC Acadia. The contact stated that while driving at an undisclosed speed, a “Steering Assist is Reduced ” warning message unexpectedly displayed. The contact also stated that the thermostat became inoperable. Additionally, the thermostat information was no longer displayed on the instrument panel. The vehicle was taken to the dealer, where it was diagnosed that the thermostat had failed and needed to be replaced. The vehicle was not repaired. The…

   NHTSA complaint #11738131 · source
6. Filed Apr 24, 2026WIElectrical System

   This vehicle has an electrical deficiency when trying to park, The console will NOT recognize that the vehicle is in park, causing bell warnings, beeping, and an INABILITY to lock the vehicle, thus draining the battery. We cannot walk away from it, nor ever leave anything of value in it. This is a recurring problem, causing stress, and having to start, shut off, re-start, wiggling the shifter knob, MANY times and HOPE that the electrical system will recognize that the…

   NHTSA complaint #11733608 · source
7. Filed Apr 15, 2026TXElectrical System

   Ongoing problem with only solution is a recall notice. Power Steering Assist Reduced -Customer reports Power Steering Assist Reduced message displayed on DIC, A/C is inoperative, Engine Coolant Temperature Sensor inoperative. Recall needed to update Engine Control Module (ECM) with latest calibration.

   NHTSA complaint #11731320 · source
8. Filed Apr 11, 2026NEElectrical SystemEngineSteering

   The warning steering assist reduced, drive with caution appears. Shift to park appears. Temperature gauge drops to zero. Fan runs on high. A/C & heater don’t not work when this happens. We certainly do not feel safe driving our Acadia like this. Can’t trust that it won’t start on fire.

   NHTSA complaint #11730600 · source
9. Filed Apr 3, 2026NCElectrical System

   When shiftiing to park and turning the car off the message "Action Required Shift to Park". It is difficult to get the message to go away.

   NHTSA complaint #11729088 · source
10. Filed Mar 21, 2026MIElectrical SystemOther / Unknown

    In November 2022, I started getting a dashboard "shift to park" on my 2019 Acadia after I had parked and shut the vehicle off. At the time I took it into service to have it looked at/repaired, they told me there would probably be a recall on this issue,as it seemed to be a frequent problem, and I would get a refund for the repair. That recall never happened, and now my car is once again displaying the same issue. The dealership will not cover the repair, and I will be…

    NHTSA complaint #11726065 · source
11. Filed Mar 19, 2026WVElectrical SystemEngine

    My Acadia keeps an error message of "Shift to Park" this has been happening on and off for about 8 months. Now it goes on every time I try to shut my car off. I have to stop and start it up to 20 times before it shuts off. I am concerned that I may be somewhere and won't be able to turn it off. I know there have been recalls for this and I need this repaired. It's obviously a flaw on GMC and honestly, I should not have to pay for it. At this point, the car is only used close…

    NHTSA complaint #11725460 · source
12. Filed Feb 11, 2026IAElectrical System

    Parts # 84733196 Harness ASM-TRAS CONT WRG and 84955379 SWITCH ASM-TRNS CONT have been replaced three times. This is described by dealer as a faulty PARK SWITCH. When this switch fails the vehicle is unable to be shifted to park. Vehicle needed to be located in a level position, wheels chocked and battery disconnected to safely disable the vehicle. Dealership and General Motors has been made aware of problem won't do anything, other that have me pay for the labor and new…

    NHTSA complaint #11717242 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology