{"nhtsa_id":10240477,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-08-05","date":"2023-07-13","document_id":"M1597","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.","mfr_system":null,"summary":"SERVICE BULLETIN M1597: AMPLIFIER SOFTWARE UPDATE FOR 2023 CVO. PURPOSE: This bulletin informs dealers that there is an available software update for the 2023 CVO Street Glide (FLHXSE) and Road Glide (FLTRXSE) audio amplifier. This update is to address a condition that would cause the Automatic Volume Control (AVC) not to function normally.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10240477-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10240477-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10240477","components":[{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"HARLEY-DAVIDSON","model":"FLHXSE","year_from":2023,"year_to":2023,"match":null,"vehicle_ids":[]},{"make":"HARLEY-DAVIDSON","model":"FLTRXSE","year_from":2023,"year_to":2023,"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":[]}