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Service bulletin T2467

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 id10203195
Published by NHTSA2021-11-08
Manufacturer's numberT2467
Manufacturer's date2021-09-23
NHTSA componentPOWER TRAIN

NHTSA's summary

This Temporary Repair Practice is being issued to address failures related to fault codes 3748, 3749, 6459, 6463, and/or 3361 on certain B6.7 CM2350 Hybrid Bus engines with Allison Transmission Systems only.

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
CUMMINS B6.7

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