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Service bulletin MYCOM_03282023-1

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 id10233953
Published by NHTSA2023-04-07
Manufacturer's numberMYCOM_03282023-1
Manufacturer's date2023-03-28
NHTSA componentELECTRICAL SYSTEM; EQUIPMENT

NHTSA's summary

My Communications for IMPORTANT: Detroit Connect Services Unavailable for Certain Vehicles after April 1

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, Equipment and accessories

Vehicles listed
DETROIT DIESEL DETROIT DIESEL

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