I WAS MAKING A RIGHT TURN TO MERGE INTO THE MIDDLE LANE ON A HIGHWAY SERVICE ROAD WHERE EVERY CAR WAS WAITING FOR THE GREEN LIGHT. I TURNED VERY SLOWLY AT LOW SPEED AFTER STOPPING AT THE STOP SIGN, AND ALL OF A SUDDEN THE STEERING WHEEL STARTED TO TURN BY ITSELF, THEN MY CAR TURNED 180 DEGREES, WHILE THE ACCELERATOR SPEEDED UP AT A RAPID PACE, SEEMING TO BE STUCK. MY CAR JUMPED THE CURB, HIT A SIGN, AND FINALLY STOPPED. THE BUMPER COVER CAME DOWN, AND I CAN SEE THE BUMPER WAS DAMAGED (PUSHED BACK IN THE MIDDLE ABOUT 2 INCHES), BUT BOTH OF MY 2002 HONDA ACCORD'S AIR BAGS DID NOT DEPLOY AT ALL. *TR