TL* THE CONTACT OWNS A 2006 CHEVROLET TRAILBLAZER 360. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 12V406000 (ELECTRICAL SYSTEM, VISIBILITY) AND WAITED FOR SEVERAL MONTHS FOR THE PART TO REPAIR THE VEHICLE. WHILE TRAVELING APPROXIMATELY 30 MPH, THE CONTACT NOTICED A BURNING ODOR AND THE HEADLIGHTS SHORTED WITHOUT WARNING. UPON PULLING THE VEHICLE OVER, THE CONTACT NOTICED THAT THE HDM SWITCH MELTED INTO THE FUSE BOX AND SHORTED THE CIRCUIT BOARD, WHICH AFFECTED THE OTHER FUSES. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHO REPLACED THE HDM SWITCH, THE FUSE BOX, AND THE CIRCUIT BOARD. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 197,000.