THE VEHICLE ACCELERATED ON ITS OWN WHEN COMING TO A STOP AT A LIGHT. THE TRANSMISSION WAS COMPLETELY OVERRIDEN AND IT DID NOT MAKE ANY DIFERENCE IF THE CAR WAS PUT IN PARK OR REVERSE, THE CAR STILL WAS BUCKING FORWARD. IT STOPPED WHEN THE IGNITION WAS KILLED. THIS WAS THE SECOND TIME IT HAPPENED AND THE MOST SEVERE CASE. THE FIRST TIME IT ONLY STARTED TO REV BUT DID COME TO A STOP AT THE LIGHT. THE INCIDENTS WERE APPROXIMATELY 2-3 WEEKS APART.