Ford F-250 SD 2020 — technical service bulletin
Bulletin 21B03-S5 · NHTSA communication 10209126 · issued Mar 15, 2022
Technical service bulletin
communication type
Power Train
component
2020
model years
5
vehicle entries
Official summary
Certain 2020 Model Year Super Duty F250-F600 Vehicles Equipped with a 10R140 Transmission - Number One Planetary and Ring Gear Assembly: The program has an updated expiration date of March 31, 2023 to encourage dealers and customers to have this service performed as soon as possible. In all of the affected vehicles, a distressed No. 1 planetary needle bearing inside the ring gear assembly will generate contamination that may produce rough shifts. A wrench light is likely to come on, and the transmission may go into safe mode and only operate in seventh gear. As damage progresses, the transmiss
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.