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Emissions D25M3-Bulletin

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)
TypeEmissions
NHTSA id11027201
Published by NHTSA2026-01-07
Manufacturer's numberD25M3-Bulletin
Manufacturer's date2025-12-15
Campaign id or software versionD25M3
NHTSA componentENGINE

NHTSA's summary

Revised Detroit Field Service Campaign for 2025 HDEP MCM Software Reprogramming

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
DETROIT DIESEL DD15

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