DT: THE CALLER SAID WHILE DRIVING AT 55 MPH COOLANT LIGHT ON DASHBOARD CAME ON AND THE VEHICLE BROKE DOWN AND CAUGHT ON FIRE. SHE SAID THE LIGHT CAME ON BEFORE SHE LEFT FOR A TRIP, AND THE DEALER SAID THEY FIXED IT. THE CALLER SAID WHILE ON THE TRIP THE LIGHT CAME ON AGAIN AND SHE CALLED DEALER, AND WAS TOLD AS LONG AS THE TEMPERATURE WAS NOT RISING THE VEHICLE WOULD BE OKAY. THE DEALER SAID THE PROBLEM WAS THE COOLANT SENSOR. THE CALLER STATED THE TEMPERATURE DID NOT CLIMB BEFORE THE VEHICLE LOST POWER, STOPPED RUNNING ,AND CAUGHT ON FIRE. THERE WAS A REPORT FILED BY THE FIRE DEPARTMENT. VEHICLE WAS TOTALED. VEHICLE WAS BADLY BURNED TO DETERMINE THE CAUSE OF THE FIRE.*AK