The contact owns a 2020 Ford Explorer. The contact stated that while idling at a stop light or while the vehicle was parked, the vehicle was shaking abnormally. The check engine warning light was illuminated. The failure was intermittent at first but became a constant failure. The vehicle was taken to the dealer who diagnosed that the variable camshaft timing (VCT) system had failed and needed to be replaced. The failure was linked to an unknown Customer Satisfaction Program; however, the vehicle was not included. The vehicle was not repaired. The manufacturer was made aware of the failure. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 60,000.