NHTSA Complaint #11485509 — 2016 FORD F-150

The contact owns a 2016 Ford F-150. The contact stated that while driving approximately 50 MPH and exiting the highway, the transmission erroneously downshifted causing the vehicle to abruptly decelerate with the check engine warning light illuminated. After restarting the vehicle, the vehicle operated normally however, the failure reoccurred and the vehicle stalled and would not immediately restart. After disconnecting and reconnecting the battery cables, the vehicle was able to be restarted. The vehicle was taken to the local dealer who performed a transmission software update but the failure persisted along with several additional electrical failures. The vehicle was taken back to the dealer who diagnosed that the transmission leadframe was faulty and needed to be replaced; however, the parts were on backorder. The manufacturer was notified of the failure. The failure mileage was 99,800.