Ford F-250 SD 2024–2025 — technical service bulletin
Bulletin TSB 25-2420 · NHTSA communication 11023139 · issued Sep 10, 2025
Technical service bulletin
communication type
Engine
component
2024–2025
model years
8
vehicle entries
Official summary
Some of the vehicles listed in the Model statement above built with minor feature code AAZNQ or AAZNS (gross vehicle weight rating ÝGVWR¨ 9,900 lb. or 10,000 lb. pounds) may exhibit an incorrectly illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P20EE stored in the powertrain control module (PCM). This may be due to the calibration in the PCM. This condition does not affect vehicle drivability or durability. To confirm a vehicle is built with a certain minor feature code, review the build information by double-clicking the vehicle identification number (VIN) in t
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.