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Service bulletin E171

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 id10096914
Published by NHTSA2017-04-05
Manufacturer's numberE171
Manufacturer's date2017-01-18
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

NHTSA's summary

NON-SAFETY CAMPAIGN: PRE-SERIES VEHICLES WITH EXPIRING EMISSIONS EXEMPTIONS MUST BE UPDATED TO PRODUCTION LEVELS. THIS INVOLVES ENGINE SOFTWARE AND A NEW EMISSIONS LABEL.

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, Exhaust and emissions

Vehicles listed
PACCAR MX-112017
PACCAR MX-132017

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