WenmarOpen by Wenmar Pro

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 id10242095
Published by NHTSA2023-09-08
Manufacturer's numberM1573
Manufacturer's date2023-08-02
NHTSA componentSUSPENSION; POWER TRAIN; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING

NHTSA's summary

SERVICE BULLETIN M1573 (REV C): REVOLUTION MAX TROUBLESHOOTING TIPS. PURPOSE: Revision. Informs dealers about Revolution® Max powered vehicles. Updated purpose of the bulletin to call out 1 repair per Vehicle Identification Number (VIN). This bulletin informs dealers that Harley-Davidson has specific areas of interest while troubleshooting on Revolution® Max platform vehicle built before July 1, 2023 for issues on starting or Diagnostic Trouble Codes (DTCs). 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 DTCs, in order of priority if there are multiple. The labor code associated with this bulletin will no longer be redeemable for motorcycles built after July 1, 2023. As a reminder, the repairs called out in this bulletin should only be executed 1 time per VIN. If there is a need to repeat a specific step in the process, please file a claim for that repair only.

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, Engine, Suspension, Transmission and driveline

Vehicles listed
HARLEY-DAVIDSON RA12502021 to 2023
HARLEY-DAVIDSON RA1250S2021 to 2023
HARLEY-DAVIDSON RH9752022 to 2023
HARLEY-DAVIDSON RH975S2023

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