WE WERE DRIVING ON A FM ROAD IT WAS PITCH BLACK THAT NIGHT AND CAME UP A HILL AND IN THE MIDDLE OF THE ROAD WAS A BIG BLACK COW, I SWEREVED TO TRY AND MISS IT AND NOT HIT IT HEAD ON BUT CLIPPED ITS BEHIND ON THE RIGHT FRONT QUARTER PANEL, THE NEXT THING I KNOW THE CAB IS FULL OF SMOKE AND SMELLED LIKE WIRES BURNING, SO I GO TO THE SIDE OF THE ROAD AND KILLED IT MADE SURE EVERYONE WAS OK AND WENT TO THE ER TO GET MY CHILDREN CHECKED OUT, UNKNOWN WHY THEY FAILED TO DEPLOY