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Service bulletin M1475

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 id10177093
Published by NHTSA2020-07-07
Manufacturer's numberM1475
Manufacturer's date2020-06-26
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

SERVICE BULLETIN M1475: BOOM! BOX GTS - SOFTWARE UPDATE. PURPOSE: Revision. This bulletin provides notice of Boom!™ Box GTS software release dates. For details on software notes see the owner's manual. This bulletin helps the dealer locate needed information to update and service Boom! Box Audio Infotainment systems. New Software Update, Version 21.20.22.00 Release Date: 6/26/2020. This information applies to all Touring, Touring CVO and Trike models equipped with a Boom! GTS Infotainment system.

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

Vehicles listed
HARLEY-DAVIDSON FLHP2020
HARLEY-DAVIDSON FLHR2019 to 2020
HARLEY-DAVIDSON FLHRXS2019 to 2020
HARLEY-DAVIDSON FLHT2019 to 2020
HARLEY-DAVIDSON FLHTCU2019
HARLEY-DAVIDSON FLHTCUTG2019 to 2020
HARLEY-DAVIDSON FLHTCUTGSE2019 to 2020
HARLEY-DAVIDSON FLHTK2019 to 2020
HARLEY-DAVIDSON FLHTK SHRINE2020
HARLEY-DAVIDSON FLHTKL2019
HARLEY-DAVIDSON FLHTKSE2019 to 2020
HARLEY-DAVIDSON FLHTP2019 to 2020
HARLEY-DAVIDSON FLHX2019 to 2020
HARLEY-DAVIDSON FLHXS2019 to 2020
HARLEY-DAVIDSON FLHXSE2019 to 2020
HARLEY-DAVIDSON FLRT2019 to 2020
HARLEY-DAVIDSON FLTRK2020
HARLEY-DAVIDSON FLTRU2019
HARLEY-DAVIDSON FLTRX2019 to 2020
HARLEY-DAVIDSON FLTRXS2019 to 2020
HARLEY-DAVIDSON FLTRXSE2019 to 2020

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