GMC Acadia owners have reported 1 problem related to clutch assembly master cylinder (under the power train category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of GMC Acadia based on all problems reported for the Acadia.
The contact owns a 2026 GMC Acadia. The contact stated that while at a stop sign and depressing the brake pedal, the vehicle unintendedly accelerated and crashed into the rear passenger's side of a semi truck. Both the aeb and the iaeb failed to engage during the incident. The vehicle sustained severe front-end damage. The contact stated that the air bags failed to deploy, and the forward collision avoidance system failed to engage to prevent the crash. The driver sustained a neck and right shoulder injury. The front passenger seat occupant sustained a right arm and left leg injury, and a headache. No medical treatment was received. A police report was filed. The vehicle was towed away. The cause of the failure was not yet determined. The manufacturer was notified of the failure. The failure mileage was 4,700.