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Service bulletin M1562

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 id10219043
Published by NHTSA2022-09-01
Manufacturer's numberM1562
Manufacturer's date2022-08-29
NHTSA componentELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM; UNKNOWN OR OTHER; ELECTRICAL SYSTEM

NHTSA's summary

SERVICE BULLETIN M1562: RH975 (NIGHTSTER) - HAND CONTROL MODULE UPDATE. PURPOSE: This service bulletin is to inform dealers of a Right Hand Control Module (RHCM)/Left Hand Control Module (LHCM) update that is available on Digital Technician II (DT II). This update is to address an unresponsive Hand Control Module (HCM) condition. This condition occurs at vehicle start up only. Vehicles exhibiting this condition will have no reaction to button or switch inputs from either HCM, multiple modules will report a Loss of Communication with RHCM/LHCM. The condition was able to be temporarily corrected with the removal and installation of the main fuse to reset the modules.

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, Body control module

Vehicles listed
HARLEY-DAVIDSON RH9752022

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