# Service bulletin M1504

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: 10188351
- Published by NHTSA: 2021\-03\-06
- Manufacturer's number: M1504
- Manufacturer's date: 2021\-02\-12
- NHTSA component: POWER TRAIN; ELECTRICAL SYSTEM; EQUIPMENT

## NHTSA's summary

SERVICE BULLETIN M1504: LIVEWIRE MODULES UPDATES. PURPOSE: Revision. This bulletin informs dealers that Harley\-Davidson has made a software update to the LiveWire™ related to the following modules: On\-Board Charger \(OBC\), Vehicle Supervisory Controller \(VSC\), Rechargeable Energy Storage System \(RESS\), Motor Control Module \(MCM\). This software update is required for all LiveWire vehicles and will be reimbursed under warranty. Perform this update as soon as possible on any affected units in dealer inventory, and on all units sold and delivered to customers. Dealers should contact their LiveWire customers and arrange to perform this update. Updated release dates for OBC Software Updates, VSC Software Updates. OBC Software Updates \- New Software Update Version: Control Board: 2.8.95.2; Power Board: 6.18.64.2; Charger: 0.92.158.2 Release Date: Week of September 28, 2020. VSC Software Updates \- New Software Update Version 7.4.28.2 Release Date: Week of September 28, 2020.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10188351-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10188351-9999.pdf)

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

## Components

Electrical system, Equipment and accessories, Transmission and driveline

## Vehicles listed

- 2020 HARLEY\-DAVIDSON/LIVEWIRE ELW \(LIVEWIRE\)

JSON: [/v1/bulletins/10188351](/v1/bulletins/10188351)

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