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Service bulletin FDM-TSIB-029

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 id10199875
Published by NHTSA2021-08-04
Manufacturer's numberFDM-TSIB-029
Manufacturer's date2021-07-12
NHTSA componentPOWER TRAIN; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY

NHTSA's summary

Oshkosh has identified some Allison transmission Gen 5 equipped trucks are experiencing a stuck in gear fault. Removal of the Trans ID wire from the transmission control module (TCM) and transmission connectors resolves this potential fault.

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

Equipment and accessories, Transmission and driveline

Vehicles listed
OSHKOSH S SERIES

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