{"nhtsa_id":11036624,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-09-02","date":"2026-08-22","document_id":"26-BE-026H TSB","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Some Santa Fe (MX5A) and Santa Fe Hybrid (MX5A HEV) vehicles may exhibit a 12-volt battery drain due to the passive entry feature of the Digital Key 2 premium causing repeated wakeup of the vehicle. This bulletin provides instructions to perform software updates for the Ultra-Wide Band (UWB) and Body Domain Control (BDC) modules.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11036624-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11036624-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11036624","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"HYUNDAI","model":"SANTA FE","year_from":2024,"year_to":2026,"match":"exact","vehicle_ids":["2024_hyundai_santa-fe","2025_hyundai_santa-fe","2026_hyundai_santa-fe"]},{"make":"HYUNDAI","model":"SANTA FE HYBRID","year_from":2024,"year_to":2026,"match":"base","vehicle_ids":["2024_hyundai_santa-fe","2025_hyundai_santa-fe","2026_hyundai_santa-fe"]}],"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":[]}