TL* THE CONTACT OWNS A 2015 CHEVROLET SILVERADO 2500. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 15 MPH, THE REAR WINDOW DEFROSTER SYSTEM STARTED SMOKING AND THE REAR WINDOW SHATTERED. THE CONTACT STATED THAT THE VEHICLE WAS NOT TAKEN TO A DEALER NOR AN INDEPENDENT MECHANIC TO BE DIAGNOSED OR INSPECTED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 80,000.