Ford F-53 2020–2021 — technical service bulletin
Bulletin SSM 51209 · NHTSA communication 10226763 · issued Nov 16, 2022
Technical service bulletin
communication type
Service Brakes, Air
component
2020–2021
model years
2
vehicle entries
Official summary
Some 2020-2021 F53/F59 Stripped Chassis vehicles may experience an illuminated anti-lock brake system (ABS) warning indicator with diagnostic trouble code (DTC) C0037. If normal diagnostics lead to replacement of the tone ring, be advised that the tone ring has been superseded with improved parts for both the passive (MU9Z-2C026-D) and active (MU9Z-2C026-C) systems. Follow Workshop Manual Section 206-04 for tone ring replacement.
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.