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Service bulletin M1573

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 id10228752
Published by NHTSA2023-01-05
Manufacturer's numberM1573
Manufacturer's date2022-12-21
NHTSA componentELECTRICAL SYSTEM; EQUIPMENT

NHTSA's summary

SERVICE BULLETIN M1573: REVOLUTION MAX TROUBLESHOOTING TIPS. PURPOSE: This bulletin informs dealers that Harley-Davidson has specific areas of interest while troubleshooting on the Revolution® Max platform. These areas of interest should be used in conjunction with the Service Manual and Electric Diagnostic Manual while troubleshooting. This information should be used as an aid to current troubleshooting steps and not a replacement. Best practice is to first troubleshoot current Diagnostic Trouble Codes (DTCs), in order of priority if there are multiple.

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 RA12502021 to 2023
HARLEY-DAVIDSON RA1250S2021 to 2023
HARLEY-DAVIDSON RA975S2022
HARLEY-DAVIDSON RH1250S2021 to 2022
HARLEY-DAVIDSON RH9752022 to 2023

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