TL*THE CONTACT OWNS A 2001 CHEVROLET SILVERADO. WHILE DRIVING LESS THAN 55 MPH, THE CONTACT SMELLED A CHEMICAL ODOR. SHE HAD A CIGARETTE IN THE ASHTRAY AND SMOKE APPEARED FROM BEHIND THE ASHTRAY. SHE ATTEMPTED TO REMOVE THE ASHTRAY, BUT IT WAS TOO HOT TO GRAB. SHE ROLLED THE WINDOWS DOWN AND THE INSTRUMENT PANEL CAUGHT FIRE. A NEARBY SERVICE STATION ATTENDANT WAS ABLE TO EXTINGUISH THE FIRE. IT WAS DETERMINED THAT THE FIRE WAS NOT CAUSED BY THE CIGARETTE. A POLICE REPORT WAS FILED. THE VIN WAS UNABLE TO BE ENTERED. THE FAILURE AND CURRENT MILEAGES WERE OVER 150,000.