TL* THE CONTACT OWNS A 2018 GMC TERRAIN. THE CONTACT STATED THAT THE VEHICLE'S ELECTRICAL SYSTEM FAILED. THE VENTS LOCATED NEAR THE INSTRUMENT PANEL EMITTED A STRONG BURNING ODOR WHEN THE HEATING SYSTEM OR AIR CONDITIONING SYSTEM WAS ACTIVATED. IN ADDITION, THE FRONT END OF THE VEHICLE EXHIBITED A STRONG VIBRATION THAT CAUSED THE STEERING WHEEL TO VIBRATE. FURTHERMORE, WHEN THE REAR HATCH DOOR WAS CLOSED, THE REAR HATCH DOOR LIGHT REMAINED ILLUMINATED. THE CONTACT STATED THAT THE REAR DRIVER'S SIDE HUB CLIPS SEPARATED. ON STAR PERFORMED A DIAGNOSTIC AND PROVIDED THE CONTACT WITH DIAGNOSTIC CASE NUMBER: 109309958. THE VEHICLE WAS TAKEN TO RAINBOW NORTHSHORE BUICK GMC (2925 NORTH HIGHWAY 190, COVINGTON, LA 70433, (888) 494-1484) FOR INSPECTION. THE DEALER ONLY CLEARED THE ON START CONNECTIVITY CODES AND INFORMED THE CONTACT THAT THERE WAS A DEFECTIVE MODULE. THE MANUFACTURER DID NOT HAVE A REMEDY FOR THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS CONTACTED. THE APPROXIMATE FAILURE MILEAGE WAS 4,000.