WHILE I WAS DRIVING IN TRAFFIC WITH THE PROPILOT ASSIST AND INTELLIGENT CRUISE, I WAS INVOLVED IN AN ACCIDENT. MY CAR WAS PACING THE CAR IN FRONT JUST FINE AND WHEN THE CAR STOPPED SUDDENLY IN FRONT MY CAR DID NOT. BY THE TIME I REALIZED THE CAR WAS NOT GOING TO STOP IN TIME I SLAMMED ON MY BREAKS AND NOTHING HAPPENED. I WAS PRESSING ON THE BRAKES SO HARD THAT THE AIR BAGS DID NOT EVEN TOUCH ME. I ALSO HAD ISSUES WITH MY CAR SUDDENLY STOPPING FOR NO REASON WHILE PROPILOT ASSIST WAS ENGAGED. *TR