# Service bulletin M1520

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.

- Type: Service bulletin
- NHTSA id: 10186790
- Published by NHTSA: 2021\-02\-06
- Manufacturer's number: M1520
- Manufacturer's date: 2021\-01\-19
- NHTSA component: WHEELS; ELECTRONIC STABILITY CONTROL:AUTOMATIC \(ASC\); UNKNOWN OR OTHER; EQUIPMENT; ENGINE AND ENGINE COOLING

## NHTSA's summary

SERVICE BULLETIN M1520: 2021 INITIAL CARE. PURPOSE: The purpose of this program is to monitor Harley\-Davidson quality delivered to the customers. Harley\-Davidson Technical Service is providing an initial care program for a number of 2021 vehicle components. Duration of Program: January 4, 2021 through April 4, 2021.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10186790-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10186790-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Driver assistance, Engine, Equipment and accessories, Wheels

## Vehicles listed

- HARLEY\-DAVIDSON HARLEY\-DAVIDSON

JSON: [/v1/bulletins/10186790](/v1/bulletins/10186790)

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