{"nhtsa_id":11033461,"type":"service_campaign","type_name":"Service campaign","date_added":"2026-06-04","date":"2026-05-22","document_id":"Dealer 91FN_20260522","mfr_campaign":"91FN","replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":null,"summary":"91FN Dealer Communication - Revision. Affected vehicles will receive the latest software version via a software update. This software contains an optimized self-diagnosis function for the high-voltage battery. In addition to the software update, the high-voltage battery cells may experience an increased self-discharge. The high-voltage battery will be evaluated, and any affected high-voltage cell modules will be replaced. Updated labor operations.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033461-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033461-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11033461","components":[],"codes":[],"topics":[],"vehicles":[{"make":"AUDI","model":"Q4 E-TRON","year_from":2022,"year_to":2023,"match":null,"vehicle_ids":[]},{"make":"AUDI","model":"Q4 SPORTBACK E-TRON","year_from":2022,"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":[]}