THE MULTI-FUNCTION SWITCH THAT CONTROLS HEADLIGHTS AND TURN SIGNAL MALFUNCTIONED. DRIVER TRIED TO USE THE TURN SIGNAL AND HEADLIGHTS TURNED OFF WITHOUT ANY WARNING. WHILE DRIVING APPROXIMATELY 35 MPH CONSUMER'S VEHICLE WAS INVOLVED IN A COLLISION DUE TO ANOTHER VEHICLE NOT SEEING THE HEADLIGHTS. DRIVER SUSTAINED CHEST AND STERNUM INJURIES. *AK