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April 23, 2024 Service bulletin

Skyline os universal software update

Harley-Davidson technical service bulletin M1635 for 2024 Harley-Davidson FLHX, 2024 Harley-Davidson Fltrx and 2023-2024 Harley-Davidson Flhxse and others.

Bulletin number
M1635
Component
Unknown or other
Summary
SERVICE BULLETIN M1635 (REV A): SKYLINE OS UNIVERSAL SOFTWARE UPDATE. PURPOSE: Revision. Updated various sections. Updated: Vehicles Affected, Required Dealer Action and Troubleshooting. NOTE Service Bulletin M1635 supersedes M1625. Repairs made to vehicles after March 7, 2024 following M1625 will not be accepted through warranty. Warranty claims on repairs made prior to March 7, 2024 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 (240002237D) will bring 2023 and 2024 IFCU equipped vehicles to the same software version. The software update will also address a series of bugs within 2023 vehicles equipped with the Skyline™ OS. This update should be applied to all current software versions: 240001467D, 240002100D and 240002111D. This is a multi-step software update that also contains the latest Amplifier software (1.3.8.0).

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