The contact owns a 2013 Hyundai Accent. The contact stated that while operating the vehicle, the vehicle had experienced unintended acceleration on several occasions. After parking the vehicle in the garage and switching to the park position, the vehicle had experienced unintended acceleration and crashed into the back wall of the garage. The cause of the failure was not determined. No injuries were reported. The manufacturer was notified of the failure but no assistance was offered. The vehicle was examined by an independent mechanic but the no cause no problem was found. The failure mileage was 2,154.