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Service bulletin IK1201452

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 id10183465
Published by NHTSA2020-12-02
Manufacturer's numberIK1201452
Manufacturer's date2020-11-24
NHTSA componentENGINE AND ENGINE COOLING; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY

NHTSA's summary

CPA RCT (relative compression test) for PSI propane or gasoline V8 8.8L engines; School bus models

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, Equipment and accessories

Vehicles listed
IC BUS CASB2015
IC BUS CE2016 to 2017
IC BUS CESB2018 to 2020

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