THE CAR JUMPED FORWARD, ACCELERATED ON IT'S OWN. I WAS UNABLE TO ANTICIPATE THE MOVE. I TOOK MY FOOT OFF THE BRAKE AND THE CAR JUMPED FORWARD WITHOUT WARNING INTO ANOTHER VEHICLE. THIS UNANTICIPATED MOVEMENT HAS OCCURRED SPORADICALLY OVER THE LAST MONTHS AND WE HAVE NARROWLY AVOIDED HITTING CHILDREN IN SCHOOL ZONES AND CROSS WALKS. SOMETIMES THE JUMP OCCURS WHILE THE BRAKE IS BEING DEPRESSED, BUT MOSTLY IT HAPPENS WHEN I START TO TAKE MY FOOT OFF THE BRAKE. IT IS DANGEROUS AND SCARY TO NOT HAVE CONTROL OF MY VEHICLE.