{"nhtsa_id":11020979,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-07-30","date":"2025-07-21","document_id":"2078544/1","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"DTC B1765F1 - \"Active noise cancelling basic settings not performed\" (Bang & Olufsen) | Flying Spur | 26MY. Condition: For vehicles with a Bang & Olufsen sound system, the following DTC may be stored in the control module 005F (Information Electronics 1): • B1765F1 – Active Noise Cancelling: Basic Settings Not Performed This may be accompanied by customer complaints of diminished active noise cancelling, or a warning in the diagnostic log after a module replacement or software update.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11020979-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11020979-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11020979","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":["B1765"],"topics":[],"vehicles":[{"make":"BENTLEY","model":"FLYING SPUR","year_from":2026,"year_to":2026,"match":"exact","vehicle_ids":["2026_bentley_flying-spur"]}],"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":[]}