I WAS HIT FROM BEHIND IN MY NEW CHEV.COLORADO 2005 PICKUP. I WAS HIT BY A VEHICLE AT 40 MILES PER HOUR AND NO AIR BAGS DEPLOYED. MY DEALER SAID THERE ARE NO AIR BAG SENSORS ON THE BACK OF THIS VEHICLE. IS THIS TRUE? I WAS BADLY TRAUMATIZED PHYSICALLY, EMOTIONALLY, AND MENTALLY. I AM UNDER A DOCTOR'S TREATMENT