10R80 transmission hard shifting and slipping
POWER TRAIN
45 NHTSA complaints · 2025-11 → 2026-06 (sample of 200 most-recent of 1141 total)
“My 2021 Ford F-150 with the 10-speed transmission has started shifting very hard and making grinding noises while accelerating. The truck will sometimes hesitate between gears and then slam into gear unexpectedly. I have also experienced sudden hard downshifts…”
“When stopping for a redlight the 10r80 transmission locks itself into 10th gear. I have taken 7 or 8 actual videos for proof of that. Also when leaving a intersection the transmission runs up to the rev limiter in 1st gear then slams into 2,3,4 and 5th gear.…”
“Transmission is shuddering at speeds up to 60mph. Can cause the vehicle to jump repeatedly.I am worried at such a high speed the vehicle could lose control and put my life and others at risk. Also can shift very hard when coming to a stop so much so that it…”
“Vehicle: 2021 Ford F-150 XLT Issue: Transmission Malfunction and Safety Concern I am submitting a formal complaint regarding a serious and ongoing transmission issue with my 2021 Ford F-150 XLT. The vehicle has exhibited multiple dangerous and unpredictable transmission…”

