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November 6, 2025 Service bulletin

This article supersedes TSB 25-2119 to update the vehicles affected, parts list, and Service Procedure

Ford technical service bulletin TSB 25-2549 for 2021-2022 Ford F-250 SD, 2021-2022 Ford F-350 SD and 2021-2022 Ford F-450 SD and others.

Bulletin number
TSB 25-2549
Component
Power train
Summary
This article supersedes TSB 25-2119 to update the vehicles affected, parts list, and Service Procedure. Some of the vehicles listed in the Model statement above may exhibit an incorrectly illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P0420 and/or P0430 stored in the powertrain control module (PCM). This may be due to the software in the PCM. This condition does not affect vehicle drivability or durability.

Owners of these vehicles have filed 80 complaints in the transmission category.

Vehicles covered

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