NHTSA Complaint #11595766 — 2021 FORD F-150

The automatic 10 speed transmission 10R80 covered by TSB24-2176 will violently downshift or upshift causing passengers and contents of the vehicle to be thrown around the vehicle. This happens at random events, sometimes while accelerating, sometimes while decelerating, and without warning, which leads to violent decelerating and lurching on the road, which is a safety concern in heavy traffic. The transmission has been serviced 3 times by Ford of Homewood, twice under warranty and once out of warranty (60K powertrain) but there is no fix or remedy to repair this issue. I own several other identical 10 speed equipped trucks that operate fine, perhaps a bit jerky with shifting, but this truck is a safety hazard that cannot be repaired.