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Service bulletin C1694A

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 id10085643
Published by NHTSA2016-12-07
Manufacturer's numberC1694A
Manufacturer's date2015-12-01
NHTSA componentENGINE

NHTSA's summary

THIS CAMPAIGN AUTHORIZES CERTIFIED REPAIR LOCATIONS TO RE-CALIBRATE THE ECM ON ISL CM2350 ENGINES IN TRANSIT BUS APPLICATIONS. THIS IS A REVISION TO A PREVOUSLY SUBMITTED 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

Vehicles listed
CUMMINS ISL9

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