HAD AN SIDE IMPACT ACCIDENT WHILE DRIVING MY 2002 TOYOTA SEQUOIA. WAS HIT BY A TRUCK TRAVELING BETWEEN 45-50 MPH. STRUCK RIGHT IN FRONT OF DRIVERS DOOR. DRIVERS HEAD WENT THROUGH DRIVERS WINDOW. VEHICLE WAS EQUIPED WITH SIDE CURTAIN AIRBAGS. NONE OF THE AIRBAGS DEPLOYED. VEHICLE WAS DAMAGED ENOUGH TO BE CONSIDERED TOTALED. (ESTIMATE WAS OVER $23,000) TO FIX. WANT TO KNOW WHAT WENT WRONG? PAID EXTRA FOR AIRBAGS THAT DIDN'T WORK. WHO'S RESPONSIBLE?