Some 2015-2017 F-150 vehicles equipped with a 6R80 transmission may experience an intermittent loss of reverse engagement, loss of the ability to shift into reverse or a neutral state when performing a specific shift pattern during manual shift events with no diagnostic trouble codes (DTCs). This may occur after shifting from MANUAL 1 or MANUAL 2 to REVERSE at low speeds while the vehicle is rolling. To correct the condition, follow the Service Procedure to reprogram the powertrain control module (PCM).