I WAS DRIVING HOME FROM WORK ON I-90 IN WASHINGTON STATE AND FELT A SUDDEN PAINFUL SHARP PIN POINT SENSATION IN MY LEFT UPPER OUTER POSTERIOR THIGH. I THOUGHT I WAS BEING STUCK BY A PIN OR SOMETHING SHARP. I PUT MY HAND DOWN TO PULL OUT THE SHARP OBJECT AND THEN FELT A SMALL SPOT IN MY SEAT THAT WAS BURNING HOT. I ALMOST LOST CONTROL OF MY CAR FROM THE SEVERITY OF THE PAIN IN MY FINGERS AND THIGH. I TURNED OFF THE SEAT HEATER AND THE HOT SPOT WENT AWAY QUICKLY. WHEN I GOT HOME I TURNED THE HEATER ON AGAIN - AND THE SAME THING HAPPENED. I HAD A DIME SIZED RED BURN MARK ON MY THIGH. THIS WAS ONLY A MINOR INJURY, BUT I AM LUCKY I DID NOT RECEIVE A MORE SERIOUS BURN, AND THAT A FIRE DID NOT START AND THAT I WAS NOT IN AN ACCIDENT. THIS IS AN EXTREMELY DANGEROUS DEFECT. *TR