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Service bulletin ITS61209

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 id11015926
Published by NHTSA2025-03-25
Manufacturer's numberITS61209
Manufacturer's date2025-03-20
NHTSA componentPOWER TRAIN

NHTSA's summary

Instructions to replace the Allison Hybrid drive tailshaft-to-damper-to-driveshaft fasteners and apply a higher tightening torque.

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

Transmission and driveline

Vehicles listed
NEW FLYER XDE402024

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