# Service bulletin M1673

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: 11018149
- Published by NHTSA: 2025\-05\-08
- Manufacturer's number: M1673
- Manufacturer's date: 2025\-04\-26
- NHTSA component: UNKNOWN OR OTHER; ELECTRICAL SYSTEM

## NHTSA's summary

SERVICE BULLETIN M1673 \(REV B\): DIGITAL TECHNICIAN® II WINDOWS 7 HARDWARE TERMINATION NOTICE. PURPOSE: Harley\-Davidson is requiring all dealers to replace all Digital Technician II \(DT II\) Panasonic Windows 7 models before May 15th, 2025. After that date, all Windows 7 units will cease to function. Previous communications have outlined the issues requiring laptop replacement such as Windows 7 no longer being supported, compatibility issues with Techlink 3, and aging hardware. Note: Attempting to upgrade your Windows 7 unit to Windows 10 or 11 is not recommended due to reliability concerns. Harley\-Davidson does not have loaner units to provide if your Windows 7 laptop ceases to function. Previous communications were sent through H\-Dnet.com in December 2019, April 2021, and March 2022. As part of this communication, Harley\-Davidson is announcing several options: The Microsoft Surface Pro 10 for Business tablets with a protective case is approved to be used with DT II. The Microsoft Surface Pro 11 for Business with Intel Core and a protective case is approved to be used with DT II. The Microsoft Surface Pro 11 for business with Snapdragon core is NOT compatible with DT II. Note: the tablets are still supplementary and not an equivalent or a replacement for the laptop. REV B. 2025\-04\-25. Updated communications. Updated: Purpose for Service Bulletin and ORDERING PROCESS FOR MICROSOFT SURFACE PRO 10. REV A. 2025\-04\-17. Updated communications. \* Updated: Purpose for Service Bulletin.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11018149-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11018149-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- HARLEY\-DAVIDSON AMERICANA

JSON: [/v1/bulletins/11018149](/v1/bulletins/11018149)

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