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Service bulletin TT465

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 id10159514
Published by NHTSA2019-06-07
Manufacturer's numberTT465
Manufacturer's date2019-04-23
NHTSA componentELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

NHTSA's summary

TECH TIP TT465: WHIM HEADSETS COMPATIBILITY AND OPERATION. Purpose for Tech Tip: To inform dealers, that there has been some customer and dealer confusion on the radio system after a WHIM (Wireless headset interface module) has been installed. Applies to Boom 6.5 GT and GTS Models. Symptoms: Radio and Headset Compatibility. Markets Affected: All markets are affected.

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.