2019 F-150 experienced harsh shifting between gears causing a severe jerking. The truck also would experience delayed shifts causing loss of ability to accelerate in intersections. On the highway, the vehicle sometimes down shifted unexpectedly from 10th gear to 1st gear causing the truck to lose power slowing to dangerous speeds on a highway. The truck would display ‘Powertrain Malfunction/ Reduced Power’ alert. Vehicle experienced this malfunction multiple times and is now currently at the dealership for repairs since 03/26/25. Dealership diagnosed the problem as a failed transmission.