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October 28, 2025 Service bulletin

This bulletin provides instructions for removing an inoperative vehicle TCU. Oshkosh Corporation initiated...

Oshkosh technical service bulletin FDM-TSB-006 for 2023-2024 Oshkosh S-Series.

Bulletin number
FDM-TSB-006
Component
Unknown or other
Summary
This bulletin provides instructions for removing an inoperative vehicle TCU. Oshkosh Corporation initiated an over-the-air update security certification on TCUs for a select population of Oshkosh® S-Series™ 2.0 Front Discharge Mixers. The software update process was unsuccessful and has caused select TCUs to become inoperative. Affected TCUs must be returned to Oshkosh Corporation for reflashing in a controlled environment.

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