{"nhtsa_id":11031171,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-04-08","date":"2026-03-10","document_id":"M1715","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER; ELECTRICAL SYSTEM","mfr_system":null,"summary":"SERVICE BULLETIN M1715 (REV A): SKYLINE OS VERSION 5057D SOFTWARE UPDATE. PURPOSE: Initial release 3/9/2026. Revision A. 3/24/2026. Updated: Purpose for Service Bulletin. Added supersession note regarding M1666. Purpose for Service Bulletin. NOTE Service Bulletin M1715 supersedes M1666. Repairs made to vehicles after April 24, 2026 following M1666 will not be accepted through warranty. Warranty claims on repairs made prior to April 24, 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).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031171-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031171-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11031171","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"HARLEY-DAVIDSON","model":"FLHLT","year_from":2026,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"HARLEY-DAVIDSON","model":"FLHLTSE","year_from":2026,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"HARLEY-DAVIDSON","model":"FLHX","year_from":2024,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"HARLEY-DAVIDSON","model":"FLHXL","year_from":2026,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"HARLEY-DAVIDSON","model":"FLHXLSE","year_from":2026,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"HARLEY-DAVIDSON","model":"FLHXSE","year_from":2023,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"HARLEY-DAVIDSON","model":"FLHXSTSE","year_from":2026,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"HARLEY-DAVIDSON","model":"FLHXU","year_from":2025,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"HARLEY-DAVIDSON","model":"FLTRT","year_from":2026,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"HARLEY-DAVIDSON","model":"FLTRX","year_from":2024,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"HARLEY-DAVIDSON","model":"FLTRXL","year_from":2026,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"HARLEY-DAVIDSON","model":"FLTRXRRSE","year_from":2025,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"HARLEY-DAVIDSON","model":"FLTRXSE","year_from":2023,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"HARLEY-DAVIDSON","model":"FLTRXSTSE","year_from":2024,"year_to":2026,"match":null,"vehicle_ids":[]}],"as_of":"2026-10-19","note":"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.","attribution":[]}