Complaint 2231330

Complaint Summary

POWER TRAIN

Owner Narrative

I am reporting a severe safety hazard regarding my 2018 Ford F-150, which is equipped with the 10R80 10-speed automatic transmission. While driving, the transmission suddenly lost its selected gear, slipped, and failed to engage. This event was accompanied by violent shifting, severe RPM flaring, and unexpected, harsh downshifts.This dangerous failure occurred during critical driving maneuvers—specifically while accelerating and attempting to merge onto a highway—creating an immediate collision hazard. The truck failed to respond to throttle input, depriving me of predictable acceleration and propulsion when I needed it most to match the speed of oncoming traffic.I believe this incident is directly related to the well-documented 10R80 CDF clutch-cylinder sleeve defect. Ford’s own technical documentation acknowledges that axial movement of this sleeve causes internal hydraulic leaks, leading to erratic shifting, slipping, and sudden losses of propulsion.This is fundamentally a safety defect, not a minor quality issue. An unexpected loss of power while merging or traveling at highway speeds places occupants at extreme risk of a rear-end collision. Because I have personally experienced this terrifying failure, I request that NHTSA open a formal investigation into the Ford 10R80 CDF clutch sleeve defect before it results in severe injuries or fatalities. Owners should not have to wait for a catastrophic transmission failure to receive a remedy.

Owner-submitted narrative on file with NHTSA. Complaint narratives are self-reported and have not been verified.