Ford F-250 SD 2021–2022 — technical service bulletin
Bulletin SSM 50364 · NHTSA communication 10205489 · issued Dec 20, 2021
Technical service bulletin
communication type
Electrical System
component
2021–2022
model years
8
vehicle entries
Official summary
Some 2021-2022 F-Super Duty vehicles may exhibit an illuminated anti-lock brake system (ABS) warning lamp due to various diagnostic trouble codes or faults. If the ABS module does not respond to the Ford Diagnosis and Repair System (FDRS) scan tool during normal diagnostics, make sure all related connectors are fully seated. If no connector concerns are found, remove the FDRS scan tool from the vehicle and disconnect the vehicle battery cables for 10 minutes. Reconnect the battery cables and attempt to re-establish communication with the ABS module using the FDRS scan tool.
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.