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Service bulletin FDM-SVC-039

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11005683
Published by NHTSA2024-08-05
Manufacturer's numberFDM-SVC-039
Manufacturer's date2024-07-16
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

This bulletin provides instruction for updating the Medallion instrument cluster software version to a new version updating the high transmission temperature icon and alarm to match the Allison high-temp fault settings. The alarm activates when the TCM detects one of the following over-temperature conditions in the transmission sump.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system

Vehicles listed
OSHKOSH S-SERIES2020 to 2023

Listing a model year does not mean every vehicle of it is concerned: the document says which.