The contact owns a 2020 Ford F-150. The contact stated that the vehicle made an abnormal rattling sound on cold start. 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 vehicle was not covered under Ford Campaign Number: 21N03. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the VIN was not included in a recall. The manufacturer referred the contact to the NHTSA Hotline for the VIN to be added in a recall. The failure mileage was approximately 137,000. The VIN was not available.