The contact owns a 2013 Hyundai Sonata. The contact stated that while operating the vehicle, the speed had suddenly reduced before the engine stalled. On one occasion as the failure occurred, a second vehicle crashed into the rear bumper. No injuries were reported. No police report was filed. The vehicle was towed to the local dealer who diagnosed that the engine has seized and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure. The failure mileage was 42,897.