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Service bulletin ITS61079

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 id11030369
Published by NHTSA2026-03-31
Manufacturer's numberITS61079
Manufacturer's date2026-03-20
NHTSA componentFUEL/PROPULSION SYSTEM; ENGINE

NHTSA's summary

Instructions to remove DEF sensor bypass calibration from engine ECM and new sensor installation AR - 22inch DEF tank - CA emissions.

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, Fuel system

Vehicles listed
MCI D45CRTLE2021
MCI J35002020 to 2021
MCI J45002017 to 2019

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