The contact owns a 2016 Ford Focus. The contact stated while driving approximately 35-40 MPH, the transmission was slipping. No warning light was illuminated. The vehicle was taken to the dealer; however, the contact was informed that the vehicle had performed as designed. The vehicle later failed to reverse while the transmission was shifted to reverse(R). The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 18V845000 (Power Train); however, the VIN was not included in the recall. The manufacturer was made aware of the failure and advised the contact to report the failure to the NHTSA Hotline. The failure mileage was unknown.