{"nhtsa_id":10177753,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-08-06","date":"2020-07-27","document_id":"21A4S4TCHREP727","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Vehicle Preparation Section: REMOVED: \"Perform TSB 2058096/1 '91 Audi connect has no function, SOS LED is off, and SOS warning message in FPK' Perform MMI Menu Reset: 5F-Information Electronics >> Guided Functions >> Basic Settings >> Reset MMI Menu Settings Deactivate privacy mode: Main Menu >> Privacy >> Activate Privacy Settings (Turn off) Turn Vehicle Off and allow Bus Sleep Cycle","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10177753-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10177753-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10177753","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"AUDI","model":"A4","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_audi_a4"]},{"make":"AUDI","model":"S4","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_audi_s4"]}],"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":[]}