TL* THE CONTACT OWNS A 2006 GMC ENVOY 360. THE CONTACT STATED THAT WHILE DRIVING AT 60 MPH , THE HEADLIGHTS FAILED TO REMAIN ILLUMINATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE WIRING HARNESS HAD MELTED WHICH CAUSED A FAILURE IN THE FUSE PANEL. THE VEHICLE WAS INCLUDED IN NHTSA CAMPAIGN NUMBER: 14V755000 (EXTERIOR LIGHTING). THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 150,000.