One problem related to warning 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.
Vehicle gives, “driver assist reduced drive with care” warning randomly. Lane change will no longer work and engine light will come on. Problem is sporadic and does not stay active. Engine light will shut off after a day. Once vehicle is shut off cooling fan runs extremely loud and for a long period of time draining battery.
| Lane Departure problems | |
| Warning problems |