The contact owns a 2021 Chevrolet Silverado 2500. The contact stated that while the vehicle was parked, the tailgate continuously opened and closed independently. The tailgate open warning light was illuminated. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 24V060000 (Latches/Locks/Linkages); but the VIN was not included. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 74,000.