Ford Expedition 2021–2022 — technical service bulletin
Bulletin TSB 22-2307 · NHTSA communication 10218616 · issued Aug 1, 2022
Technical service bulletin
communication type
Electrical System
component
2021–2022
model years
4
vehicle entries
Official summary
Some 2021-2022 F-150 vehicles built on or before 22-Feb-2022 and 2022 Expedition/Navigator vehicles built on or before 01-May-2022 may experience a false alarm activation event with a trailer connected and/or a U0143:87 stored in the trailer module (TRM). Vehicles that exhibit a false alarm activation will also display a Security System Detected A Trailer Disconnect message in the FordPass app. This may be due to various software parameters in the TRM. To correct the condition, follow the Service Procedure to reprogram the TRM, driver door module (DDM) and the passenger door module (PDM).
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.