TL* THE CONTACT OWNS A 2011 LEXUS RX350. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 55 MPH, NOTICED SMOKE EMERGING FROM THE ENGINE COMPARTMENT. NO WARNING INDICATORS ILLUMINATED. THE FIRE DEPARTMENT EXTINGUISHED THE FIRE. THE POLICE WAS ALSO PRESENT. THE VEHICLE WAS TOWED TO AN IMPOUND LOT. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR A DIAGNOSTIC. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND A THIRD PARTY COMPANY EVALUATED IT, THEY DIAGNOSTIC WAS UNKNOWN CAUSE FOR THE FIRE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 129,000.