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Service bulletin IK1201398

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 id10153669
Published by NHTSA2019-02-25
Manufacturer's numberIK1201398
Manufacturer's date2018-12-10
NHTSA componentENGINE

NHTSA's summary

Guide the user through resolving Frequent Regen issues on IC Bus; only models with Cummins ISB 6.7.

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

Engine

Vehicles listed
IC BUS IC BUS

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