Ford F-150 2021–2023 — technical service bulletin
Bulletin SSM 51319 · NHTSA communication 10230963 · issued Jan 27, 2023
Technical service bulletin
communication type
Equipment
component
2021–2023
model years
3
vehicle entries
Official summary
Some 2021-2023 F-150 vehicles may exhibit a side door ajar and/or a hood ajar warning message displayed in the instrument panel cluster (IPC) with or without diagnostic trouble codes (DTC) P166B, B1175, B1176, B11C1 and/or B11C0. This may be due to a misalignment of the the door or hood and/or their strikers. Before attempting any component diagnosis or replacement, check the door and/or hood and their strikers for proper alignment. Refer to Workshop Manual (WSM), Section 501-03 alignment procedures. If the doors and hood are properly aligned, continue with normal diagnostics.
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.