VEHICLE ENGAGES AUTOMATIC BRAKING SYSTEM WITHOUT ANY PROMPTING...NO OTHER VEHICLE ANYWHERE IN SIGHT. IT HAS HAPPENED ON A RURAL TWO LANE ROAD, WITH A FARM ON ONE SIDE AND WOODS ON THE OTHER AND HAS ALSO HAPPENED ON A 4 LANE ROAD WITHIN CITY LIMITS, BUT NO VEHICLE IN FRONT OF ME, BUT ONE TO THE REAR PASSENGER SIDE IN THE LANE HEADING IN THE SAME DIRECTION. EVERY TIME THIS HAPPENS IT BRINGS THE VEHICLE TO A COMPLETE STOP, REGARDLESS OF SPEED. I HAVE EXPERIENCED WHIPLASH ON SEVERAL OCCASIONS, AS WELL AS MY HUSBAND AND MY 7 YEAR OLD DAUGHTER. THE AMOUNT OF FORCE IS SO VIOLENT THAT I WOULD IMAGINE IT IS EQUIVALENT TO BEING HIT BY ANOTHER VEHICLE. I HAD JUST PICKED UP TAKE-OUT ONCE WHEN THIS HAD HAPPENED, AND THE SALSA IN THE TAKEOUT BAG FLEW OFF OF THE BACK SEAT AND THE FORCE CAUSED THE LID TO COME OFF AND SALSA WAS ALL OVER THE 2ND ROW, FRONT ROW, AS WELL AS MYSELF AND WINDSHIELD TO PUT INTO PERSPECTIVE HOW FORCEFUL THIS IS. I FEAR THE DAY THAT IT ENGAGES AND A CAR IS BEHIND ME, BECAUSE IT WILL KILL SOMEONE. WE ONLY DRIVE THIS CAR NOW ONLY IF IT IS ABSOLUTELY NECESSARY AND WE CAN'T MAKE OTHER ARRANGEMENTS.