Ford F-250 SD 2023–2025 — technical service bulletin
Bulletin SSM 53889 · NHTSA communication 11019647 · issued Jun 11, 2025
Technical service bulletin
communication type
Service Brakes
component
2023–2025
model years
12
vehicle entries
Official summary
Some 2023-2025 F-Super Duty vehicles equipped with a trailer brake control module may exhibit a "Trailer Disconnected" message after cycling the ignition off and back on with a trailer connected. This may be due to the presence of an integrated battery charger on a trailer equipped with electric over hydraulic brakes. If trailer functionality is restored after unplugging and plugging the trailer connector back in while the ignition is on, this condition can be corrected by downloading and performing the "Trailer Brake Configuration" application using the latest version of the Ford Diagnosis an
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.