TL* THE CONTACT OWNS A 2013 RAM 2500. THE CONTACT STATED THAT THE VEHICLE HAD A RAPID ALTERNATOR FAILURE DUE TO DIODE THERMAL FATIGUE. IN ADDITION, THE VEHICLE SHUT OFF DUE TO AN UNDERHOOD ELECTRICAL FIRE. A POLICE REPORT WAS NOT FILED. THE CONTACT EXTINGUISHED THE FIRE. THE VEHICLE WAS PREVIOUSLY REPAIRED PER NHTSA CAMPAIGN NUMBER: 16V739000 (ELECTRICAL SYSTEM) FOR THE SAME FAILURE. THE DEALER DIAGNOSED THAT THE ALTERNATOR NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 80,000.