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Service bulletin M1490

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 id10171039
Published by NHTSA2020-02-05
Manufacturer's numberM1490
Manufacturer's date2020-01-31
NHTSA componentEQUIPMENT; ELECTRICAL SYSTEM

NHTSA's summary

SERVICE BULLETIN M1490: DIGITAL TECHNICIAN II - UPDATES AND RELEASE NOTES. PURPOSE: This bulletin informs dealers that Harley-Davidson has made a software update to DT II (Digital Technician II). DIGITAL TECHNICIAN II (PART NUMBER: HD-48650). New Software Update Version 20.8 Release Date: Week of February 3, 2020. New features to vehicle status page and MY 2020.5 vehicle support. Changes to system info (TCU, RESS), OBC data items, and improvements to TECHLINK 3 (PART NUMBER: HD-48650-TL3), speedo reflash offering, and 2020 'Cloud Data'.

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
HARLEY-DAVIDSON HARLEY-DAVIDSON

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