The contact owns a 2020 Ford Explorer. The contact stated that the parking assist was inoperable, and the reverse automatic emergency braking was inoperable. The vehicle was taken to the local dealer where it was diagnosed that the sensors needed to be replaced. The vehicle was repaired, but the failure recurred. The contact used a scanning tool and determined that the failure was still present. The contact stated that several unknown warning lights were illuminated. The manufacturer was contacted and referred the contact to the NHTSA Hotline. The failure mileage was approximately 61,000.