2017 F150 transmission 10R80 started failing at 80K miles and completely failed at 113K. Dealer was asked to inspect the transmission but they misdiagnosed it. It is available for inspection until it is returned to Ford as part of complete swapcore charge. In the beginning the hard shifting did not put occupants at risk. As the transmission continued to fail it did put occupants and others at risk. Is would loose power/not respond to accelerator. Hunt for gears, shift from high gears to low gears while moving. Shifting to 1st gear while traveling at 45 miles per hour. Several times it would start to move from a stop but then not continue to move forward (in heavy traffic) The dealer miss diagnosed the problem and severity at 90K miles. They told me the transmission would continue to have firmer shifts while it was relearning programing. The dealer diagnosed a complete transmission failure based on codes DTSC P0734 and P07F7 stored in the transmission control module (at 113K miles). Their recommendation is a new upgraded replacement transmission from Ford due to internal failure. Ford Motor has been contacted through the customer service number 800-392-3673. There were no visible warning/check engine lights in the beginning (80K miles). Symptoms included harsh/delayed shift and harsh/delayed engagement. 20K miles later (113K miles) check engine light said to check the owner manual but didn’t display codes. Transmission started to severely/erratically hunt for gears. Shift to 1st gear from higher gears (5,6,7,8) with very harsh down shifts.