I WAS REAR-ENDED AFTER COMING TO A STOP ON A HIGHWAY IN RUSH HOUR TRAFFIC. UPON IMPACT, MY BODY LUNGED FORWARD AND THE BACKWARDS LANDING ON THE SEAT, CAUSING IT TO RECLINE ALMOST ONTO THE 2ND ROW SEAT. WHEN MY BODY WENT BACKWARD, IT CAUSED ME TO UNHAND THE STEERING WHEEL. IT IS UNKNOWN WHAT MAY HAVE CAUSED THE SEAT TO RECLINE OTHER THAN THE IMPACT OF MY BODY ON THE SEAT. I HAVE A POLICE REPORT.