general problems of the 2021 GMC Acadia

Four problems related to vehicle speed control have been reported for the 2021 GMC Acadia. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2021 GMC Acadia based on all problems reported for the 2021 Acadia.

1 Vehicle Speed Control problem

Failure Date: 11/23/2025

For the 3rd time of ownership the cooling fan stays on after vehicle is turned off and the display “steering assist is reduced, drive with caution”.

2 Vehicle Speed Control problem

Failure Date: 08/24/2025

The electronic dashboard goes black while driving. I was driving to work on the highway at highway speeds and the entire electronic dashboard went black including the hud display and the radio screen. The radio screen turned back on and auto reconnected to my phone and android auto. I was able to safely get to an exit and park, turn off the car and restart and the dash did come back on to then go black about 5 minutes later this time the hud stayed on and I was able to get to work where the car sat off for 8 hrs , when leaving work the dash stayed on. The radio screen would turn off randomly and unable to connect to a programmed cell phone via bluetooth or data cable. I brought the vehicle in for a service and this issue plus the concern of the transmission shuddering. The dealership found the problem and both the dashboard and radio needed service updates and both were charged to fix. A service update should not be charged for the dash as you have no speedometer when it goes out. There was no warning or alert that the dash or radio needed an update.

3 Vehicle Speed Control problem

Failure Date: 06/28/2025

The vacuum pump on my 2021 GMC Acadia failed causing my breaks malfunction. This problem was confirmed by a certified mechanic that repaired it. This is in conjunction with the NHTSA recall issued under n192268490.

4 Vehicle Speed Control problem

Failure Date: 01/31/2022

Brand new vehicle purchased from dealer, at 8900 miles transmission slipped. Dealer has for 2 hours and couldn’t find problem, but replaced transmission fluid it was dark. At 9000 it happened again, they have vehicle and said the new transmission fluid is dark and muddy. Only 100 miles, so they determined they need to take apart transmission and see what happened. It’s a 52k car, it should not be repairs, it should be replaced under warranty. Video of 8900 from dealership https://video. 37483. Net/timeline/2cjthew6.


Other Vehicle Speed Control related problems of the 2021 GMC Acadia

Vehicle Speed Control problems
4
Accelerator Pedal problems
2


Acadia Service Bulletins
Acadia Safety Recalls
Acadia Defect Investigations