Ford F-150 2021–2023 — technical service bulletin
Bulletin SSM 51373 · NHTSA communication 10232476 · issued Feb 21, 2023
Technical service bulletin
communication type
Electrical System
component
2021–2023
model years
3
vehicle entries
Official summary
Some 2021-2023 F-150 vehicles equipped with BLIS may experience inoperative blind spot monitoring with a Blind Spot System Fault message in the instrument panel cluster. This may also be accompanied by diagnostic trouble codes (DTCs) B118C:11 and/or B118C:15 stored in the driver door module (DDM), and/or B118D:11 and/or B118D:15 stored in the passenger door module (PDM). This may be due to the connector going from the mirror to the BLIS module (C576 for driver side, C676 for passenger side) having a pin out condition. To correct this condition, inspect the connector on the side experiencing th
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.