WIFE WAS IDLING IN CAR WITH SEAT HEATER TURNED ON. SEAT HEATER CAUGHT ON FIRE AND BURNED HOLE THE SIZE OF A HALF DOLLAR IN THE LOWER AREA OF THE SEAT IN THE AREA OF MY WIFE'S LOWER BACK. SMOKE CAME OUT OF THE SEAT AND MY WIFE'S COAT WAS DAMAGED. BROUGHT INTO DEALERSHIP SAME DAY AND ARE WAITING FOR THEIR EXPLANATION.