One problem related to lane departure 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.
The contact owns a 2021 GMC Acadia. The contact stated they had the remedy of a software update completed due to being included in NHTSA campaign number: 22v709000 (back over prevention) . After having the remedy completed the vehicle's lane departure assist system had failed and was no longer alarming the driver when the vehicle was drifting to other lanes. The vehicle was taken to the dealer, who completed the software update, who were unable to identify the cause of the failure. The vehicle had not been repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 17,700.