Ford F-250 SD 2021 — technical service bulletin
Bulletin SSM 50455 · NHTSA communication 10208078 · issued Feb 1, 2022
Technical service bulletin
communication type
Electrical System
component
2021
model years
4
vehicle entries
Official summary
Some 2021 F-Super Duty vehicles equipped with a 6.7L engine and built on 07-Jul-2021 and through 11-Jul-2021 may not properly complete powertrain control module (PCM) reprogramming or programmable module installation (PMI) resulting with diagnostic trouble code (DTC) U029E. PCM reprogramming and/or PMI for vehicles in this build date range is not recommended at this time. Monitor OASIS broadcast messages for updates. A fix is expected before the end of February 2022.
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.