Service bulletin M1666
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 | 11014023 |
| Published by NHTSA | 2025-02-08 |
| Manufacturer's number | M1666 |
| Manufacturer's date | 2025-01-28 |
| NHTSA component | ELECTRICAL SYSTEM |
NHTSA's summary
SERVICE BULLETIN M1666: SKYLINE OS VERSION 4125D SOFTWARE UPDATE. PURPOSE: NOTE: Service Bulletin M1666 supersedes M1635. Repairs made to vehicles after January 27th, 2025 following M1635 will not be accepted through warranty. Warranty claims on repairs made prior to January 27th, 2025 will be accepted following standard claim submission policy and process. This bulletin informs dealers that there is a Skyline OS software update for the 2023 and 2024 Touring vehicles equipped with an Infotainment Control Unit (IFCU). This software update (260004125D) will bring 2023 and 2024 IFCU equipped vehicles to the most up to date software version. This update should be performed on bikes exhibiting concerns covered in the release notes to be covered under warranty. The software update will add features and address a series of bugs within 2023 and 2024 vehicles equipped with the Skyline OS. This update can be applied to all current software versions: 240001467D, 240002100D, 240002111D and 240002237D.
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
| HARLEY-DAVIDSON AMERICANA |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.