Ford F-250 SD 2023 — technical service bulletin
Bulletin TSB 23-2421 · NHTSA communication 10248365 · issued Dec 20, 2023
Technical service bulletin
communication type
Power Train
component
2023
model years
4
vehicle entries
Official summary
Some 2023 F-Super Duty vehicles equipped with a 6.8L or 7.3L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P061B, U0140, U3035 and/or U3036 stored in the powertrain control module (PCM). This may be due to the software in the PCM. To correct the condition, follow the Service Procedure to reprogram the PCM.
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.