JUST PARKED VEHICLE & TRIED LOCKING DOORS WITH REMOTE KEY LOCK. DOORS FAILED TO LOCK. CHECKED DOORS & NOTICED SMOKE BILLOWING ON INSIDE FROM DASHBOARD AREA. PUSHED FROM GARAGE. IT BUST INTO FLAMES. USED FIRE EXTINQUISHER & PUT FLAMES OUT. WIRES HAD RUBBED AGAINST STEEL POST UNDER VEHICLE GOING OVER ROUGH, BUMPY ROADS. THIS CAUSED A SPARK & THEN THE FLAMES. WILL BE TAKING VEHICLE TO DEALER. *AK