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Service bulletin IK1300185

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 id10170958
Published by NHTSA2020-02-04
Manufacturer's numberIK1300185
Manufacturer's date2020-01-30
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

Reduced ISB Engine Exhaust Brake Efficiency; Only vehicles with Allison 1000/2000 series transmissions

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 CE2017 to 2020
IC BUS CESB2018 to 2019
IC BUS RE2018
IC BUS RECB2018 to 2020
IC BUS RESB2019 to 2020
INTERNATIONAL DURASTAR2017 to 2020
INTERNATIONAL HV2017 to 2020
INTERNATIONAL MV2017 to 2020

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