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Service bulletin E222

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 id10144960
Published by NHTSA2018-09-24
Manufacturer's numberE222
Manufacturer's date2018-08-14
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

Fix as Fail: DEF dosing valve inlet screen may become plugged with debris, setting DTC codes P3912, P3857 and/or P3926. Corrosion of the DEF dosing heating element may deteriorate and flake off causing debris to plug the screen.

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

Electrical system

Trouble codes named

P3857, P3912, P3926

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.