TL* THE CONTACT OWNS A 2012 FORD F-150. WHILE DRIVING APPROXIMATELY 45 MPH WITH THE REAR WINDOW DEFROSTER ENGAGED, THE DEFROST WARNING INDICATOR WAS INTERMITTENTLY ILLUMINATED. THE CONTACT TURNED THE DEFROSTER OFF AND BACK ON, AND THE DEFROST WARNING INDICATOR WOULD NOT ILLUMINATE. THE CONTACT PULLED OVER AND DISCOVERED THAT THE REAR PASSENGER SIDE OF THE REAR WINDOW SHATTERED AND THE WIRING INSIDE THE WINDOW WAS MELTED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE DEFROST WIRING SHORTED OUT WHICH CAUSED THE WINDOW TO SHATTER. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 100,000. UPDATED 09/10/15*LJ