OUTSIDE TEMP BELOW FREEZING SO I HEATED UP MY 1998 CHEVY TAHOE (INCLUDING HEATED LEATHER SEATS ON LOW SETTING) AND WHEN I RETURNED TO MY VEHICLE LESS THAN 5 MINUTES LATER, DRIVER'S SEAT WAS ON FIRE. VEHICLE HAS LESS THAT 90,000 MILES AND HAS NOT BEEN MISTREATED. I HAPPENED TO HAVE A DRINK IN MY HAND SO I POURED IT ON THE SEAT TO PUT IT OUT. HAD I ACTUALLY BEEN SITTING ON THE SEAT, I COULD HAVE BEEN SERIOUSLY BURNED. *TR