1999 CHEVROLET S10 BLAZER STARTED VEHICLE, DROVE DOWN DRIVEWAY OUT ON TO STREET. SMELLED SMOKE, RETURNED HOME. FOUND BACK OF DRIVERS SEAT ON FIRE, PUT OUT WITH GARDEN HOSE. WIRING UNDER DRIVERS SEAT STARTED ON FIRE? WE DO NOT HAVE HEATED OR POWER SEATS ON VEHICLE AND WE DON'T SMOKE. DAMAGE WAS BURNED SEAT, CARPET, REAR FLOOR MAT, MELTED WIRING. THE VEHICLE DOES HAVE THE HAZARD/BLINKER THAT TURNS ON INTERMITTENTLY FOR NO APPARENT REASON. DON'T KNOW IF THIS IS RELATED. *JB