The contact owns a 2022 Chevrolet Silverado 1500. The contact stated that while the vehicle was parked, and while driving at various speeds on several occasions, the tailgate opened inadvertently. Additionally, when the vehicle was parked, the contact observed that the tailgate had opened, and the vehicle would not start due to a drained battery. The contact believed that the tailgate failure had drained the battery. The contact then removed the rear panel from the tailgate and unhooked the switch to stop the tailgate from draining the battery. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 52,000.