{"nhtsa_id":11033448,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-06-04","date":"2026-05-29","document_id":"M1715","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER; ELECTRICAL SYSTEM","mfr_system":null,"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.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033448-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033448-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11033448","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":[]}