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Service bulletin D19R6

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 id10168138
Published by NHTSA2019-11-24
Manufacturer's numberD19R6
Manufacturer's date2019-11-22
NHTSA componentENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT ADAPTIVE/MOBILITY

NHTSA's summary

Emission Recall for DD13 engines for certain vehicles needing software reprogramming for the MCM to meet certification.

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, Engine, Equipment and accessories, Software

Vehicles listed
DETROIT DIESEL DD13

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