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Service bulletin C1818A

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 id10088022
Published by NHTSA2017-01-09
Manufacturer's numberC1818A
Manufacturer's date2016-10-11
NHTSA componentEQUIPMENT; ENGINE

NHTSA's summary

THIS CAMPAIGN ADDRESSES CERTAIN ENGINES IN TRANSIT BUS APPLICATINS EXPERIENCING FREQUENT AFTERTREATMENT REGENERATION ISSUES. THIS FIELD ACTION AUTHORIZES CERTIFIED REPAIR LOCATIONS TO PRO-ACTIVELY RECALIBRATE THE ELECTRONIC CONTROL MODULE (ECM). THIS IS A REVISION TO A PREVIOUS COMMUNICATION.

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine, Equipment and accessories

Vehicles listed
CUMMINS ISL9

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