Ford F-150 2021–2023 — technical service bulletin
Bulletin SSM 51509 · NHTSA communication 10233919 · issued Mar 24, 2023
Technical service bulletin
communication type
Power Train
component
2021–2023
model years
3
vehicle entries
Official summary
Some 2021-2023 F-150 vehicles equipped with a 3.3L engine may exhibit an illuminated MIL in the instrument panel cluster (IPC) with DTC P0171 stored in the powertrain control module (PCM). This may be due to the software of the PCM. Engineering is currently investigating this concern. To temporarily address this issue, clear the DTC and run the PCM - Reset the Keep Alive Memory (KAM) application in the Ford Diagnosis and Repair System (FDRS). Inform the customer they can continue to drive the vehicle. Monitor OASIS for additional updates.
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.