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Service bulletin M1500

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 id10164797
Published by NHTSA2019-09-16
Manufacturer's numberM1500
Manufacturer's date2019-08-30
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

SERVICE BULLETIN M1500: 2020 TOURING MODELS WITH RDRS IDLE RPM FLUCTUATIONS. REVISION. PURPOSE: Notify dealers that it has been identified that 2020 Touring vehicles equipped with RDRS (Reflex defensive rider systems) may exhibit fluctuations in idle rpm (Revolutions per minute). Some vehicles may be pronounced enough to cause customer dissatisfaction. Harley-Davidson has developed an ECM update to reduce, or eliminate these fluctuations. Vehicles Affected: All 2020 Touring, Police Touring, CVO Touring vehicles equipped with RDRS built from: Start of production through August 29,2019.

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 FLHR2020
HARLEY-DAVIDSON FLHRXS2020
HARLEY-DAVIDSON FLHT2020
HARLEY-DAVIDSON FLHTK2020
HARLEY-DAVIDSON FLHX2020
HARLEY-DAVIDSON FLHXS2020
HARLEY-DAVIDSON FLRT2020
HARLEY-DAVIDSON FLTRX2020
HARLEY-DAVIDSON FLTRXS2020

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