{"nhtsa_id":11029935,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-03-11","date":"2026-03-10","document_id":"SSM 54641","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; UNKNOWN OR OTHER","mfr_system":"audio","summary":"Some 2025-2026 F-Super Duty vehicles properly upfitted with a snowplow kit following the guidelines in the Super Duty Body Builders Layout Book (located on the www.FordPro.com website > Resources > Body Builder Advisory Service (BBAS) > Publications) may experience a radio volume that temporarily turns off or decreases when the engine RPMs are raised above idle and the snowplow is operated. Ford is aware of this condition and is investigating a service solution. Component replacement is not expected to resolve this condition. Monitor Professional Technician System (PTS) for updates.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11029935-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11029935-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11029935","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"F-250 SD","year_from":2025,"year_to":2026,"match":"base","vehicle_ids":["2025_ford_f-250","2026_ford_f-250"]},{"make":"FORD","model":"F-350 SD","year_from":2025,"year_to":2026,"match":"base","vehicle_ids":["2025_ford_f-350","2026_ford_f-350"]},{"make":"FORD","model":"F-450 SD","year_from":2025,"year_to":2026,"match":"base","vehicle_ids":["2025_ford_f-450","2026_ford_f-450"]},{"make":"FORD","model":"F-550 SD","year_from":2025,"year_to":2026,"match":"base","vehicle_ids":["2025_ford_f-550","2026_ford_f-550"]}],"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":[]}