The contact owns a 2015 Ford Explorer. The contact stated that after having the tires replaced, while in reverse or while driving at various speeds, the vehicle was losing power steering functionality. The failure had become a persistent failure. There were no warning lights illuminated. The contact became aware of NHTSA Campaign Number: 14V286000 (Steering); however, the VIN was not included. The dealer was contacted and confirmed that the VIN was not included in the recall. The vehicle was not diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage was 149,466.