# Service bulletin M1391A

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: 10163858
- Published by NHTSA: 2019\-08\-19
- Manufacturer's number: M1391A
- Manufacturer's date: 2019\-07\-11
- NHTSA component: ELECTRICAL SYSTEM; EQUIPMENT

## NHTSA's summary

SERVICE BULLETIN M1391A: MIDTRONICS GRX\-3110 SOFTWARE UPDATE. PURPOSE: REVISION. The purpose of this bulletin is to inform the dealer network that a software update to the HD BATTERY DIAGNOSTIC STATION \(PART NUMBER: GRX\-3110HD\) is now available. New Software Update: 192\-210335H. This update addresses an issue in the Japanese language menu. All markets are affected.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10163858-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10163858-9999.pdf)

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

## Components

Electrical system, Equipment and accessories

## Vehicles listed

- HARLEY\-DAVIDSON HARLEY\-DAVIDSON

JSON: [/v1/bulletins/10163858](/v1/bulletins/10163858)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20M1391A&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10163858&vehicle=Service%20bulletin%20M1391A)