One problem related to assist has 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.
Cars is not keeping track of temperature showing engine is cold after 30 minutes of driving, fan runs for extended periods of time after shutting off, check engine light comes on, steering assist alert comes in screen. All of this happens in a cycle. To stop it the battery has to be unplugged and reconnected resetting the car and everything goes back to being fine for a short period of time.
| Lane Departure problems | |
| Warning problems | |
| Assist problems |