The contact owns a 2019 Lincoln Navigator. The contact stated that while starting the vehicle, the vehicle made an abnormal rattling sound. The vehicle was taken to the dealer, where it was diagnosed that the cam phasers had failed and needed to be replaced. The dealer informed the contact that the VIN was not included in Ford Campaign Number: 21N03. The manufacturer was notified of the failure and confirmed that the VIN was not included. The manufacturer referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 83,000.