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Service bulletin ICI20-011

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 id10173107
Published by NHTSA2020-04-03
Manufacturer's numberICI20-011
Manufacturer's date2020-04-03
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

Important Campaign Information for DDC20M1. This letter is to inform you that Detroit Diesel Field Service Campaign D20M1, GHG14 DETROIT DD13 with Two-Box Aftertreatment Software Reprogramming, as of 04/01/2020 has been suspended. Do not perform or claim for this campaign until further notice.

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

Vehicles listed
FCCC FCCC
FREIGHTLINER FREIGHTLINER
STERLING STERLING
WESTERN STAR WESTERN STAR

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