The contact owns a 2019 GMC Sierra 1500. The contact stated while the vehicle was parked, the driver’s side tail pipe flange bolts connecting the tail pipe and the muffler snapped, causing the tail pipe to hang down. There were no warning lights illuminated. The contact had gone underneath the vehicle and saw that the muffler was disconnected from the tail pipe and that the exhaust bolts had snapped. The dealer was contacted, and an appointment was scheduled to have the vehicle repaired; however, the vehicle was not yet repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 107,105.