Ford F-150 2021–2022 — technical service bulletin
Bulletin SSM 51356 · NHTSA communication 10232415 · issued Feb 13, 2023
Technical service bulletin
communication type
Electrical System
component
2021–2022
model years
2
vehicle entries
Official summary
Some 2021-2022 F-150 vehicles may exhibit a condition of intermittent headlamp operation while the vehicle is off with diagnostic trouble code (DTC) B1533 stored in the body control module (BCM). This may be due to the internal logic within the headlamp switch. To correct this condition, replace the headlamp switch (service base part number 11654). Refer to Workshop Manual (WSM), Section 417-01. For claiming, use casual part 11654 and the applicable labor operations of Section 10 of the Service Labor Time Standards (SLTS) Manual.
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.