WIFE WAS DRIVING 2004 VW PASSAT SEDAN WITH HEATED SEATS TURNED ON. SHE FELT A SHARP BURNING IN THE SIDE OF HER LEG THAT SLOWLY INTENSIFIED. AS SHE LOOKED DOWN AT HER LEG SHE SAW FLAMES COMING OUT FROM A DIME SIZED HOLE. THE SEAT WAS DAMAGED AND HER LEG WAS BURNED. *NM