The contact owns a 2010 Subaru Forester. The contact stated that while reversing out of a garage parking space, the vehicle suddenly experienced unintended acceleration causing the driver to lose control of the vehicle and crash into several other parked vehicles before coming to a stop. During the incident, the driver sustained a mild concussion which did not require medical attention. A police report was filed and the vehicle was towed to the local collision center. The contact was unsure if the failure occurred while in the reverse or drive position. The cause of the failure was not yet determined. The local dealer and manufacturer were not yet notified of the failure. The failure mileage was 140,000.