WHILE TRYING TO DRIVE UP A SNOW COVERED ROAD I HAD SMOKE START COMING INTO THE CABIN OF MY VEHICLE. I WAS GOING TO PULL INTO A GAS STATION WHEN SOMEONE CAME RUNNING OVER AND STATED THAT THE UNDERSIDE OF MY CAR WAS ON FIRE. THE FIRE WAS EXTINGUISHED AND THEN MY CAR WAS PULLED OFF THE ROAD. IT WAS TOWED TO A LOCAL GARAGE WHERE MY INSURANCE AGENT WENT TO LOOK AT IT. THE OIL WAS SO LOW THAT THEY WOULDN'T CHECK IT UNTIL IT RECEIVED AN OIL CHANGE. ONCE THAT WAS PERFORMED THEY WERE STILL UNABLE TO DETERMINE WHAT CAUSED THE FIRE. THEY THEN HAD ME TOW IT TO A KIA DEALERSHIP. IT HAS BEEN AT THE DEALERSHIP FOR OVER A MONTH AND THEY HAVE DETERMINED THAT IT IS NOT A WARRANTY ISSUE. WHEN I INQUIRED AS TO WHAT WAS WRONG WITH THE CAR THEY INFORMED ME THAT IT WOULD BE $110 DOLLARS TO DIAGNOSE THE VEHICLE. THEY FINALLY WENT OVER THE VEHICLE, BUT STILL NO ANSWERS TO WHY MY VEHICLE CAUGHT FIRE AND IF IT COULD POSSIBLY HAPPEN AGAIN.