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May 29, 2026 Service bulletin

Skyline os version 5057D software update

Harley-Davidson technical service bulletin M1715 for 2024-2026 Harley-Davidson FLHX, 2024-2026 Harley-Davidson Fltrx and 2023-2026 Harley-Davidson Flhxse and others.

Bulletin number
M1715
Component
Unknown or other
Summary
SERVICE BULLETIN M1715 (REV C): SKYLINE OS VERSION 5057D SOFTWARE UPDATE. PURPOSE: Revision. NOTE: Service Bulletin M1715 supersedes M1666. Repairs made to vehicles after April 8, 2026 following M1666 will not be accepted through warranty. Warranty claims on repairs made prior to April 8, 2026 will be accepted following standard claim submission policy and process. This bulletin informs dealers of a Skyline™ OS software update, version (260005057D), for 2023-2026 Touring and 2026 Trike vehicles equipped with an Infotainment Control Unit (IFCU). This software update will be available both as Over The Air (OTA) and Universal Serial Bus (USB). Revision C. Updated: Required Dealer Action. Updated: Pre-delivery Update Note Added.

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