TL* THE CONTACT OWNS A 2016 FORD F-150. WHILE DRIVING AT AN UNDISCLOSED SPEED, THE CONTACT SMELLED AN UNUSUAL BURNING ODOR. WHILE THE VEHICLE WAS STOPPED, THE REAR WINDOW SHATTERED. THE CONTACT STATED THAT THE REAR DEFROSTER WAS ACTIVATED AT THE TIME THE WINDOW FRACTURED. THE VEHICLE WAS TAKEN TO HENDERSON GLASS AND THE GLASS WAS REPLACED. A DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS CONTACTED AND DID NOT ASSIST. THE APPROXIMATE FAILURE MILEAGE WAS 31,000.