{"nhtsa_id":11037232,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-09-09","date":"2026-08-21","document_id":"26-BE-025H TSB","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Some Tucson (NX4, NX4A, NX4M), Tucson Hybrid (NX4 HEV), and Tucson Plug-In Hybrid (NX4 PHEV) 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-11037232-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11037232-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11037232","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"HYUNDAI","model":"TUCSON","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_hyundai_tucson","2026_hyundai_tucson"]},{"make":"HYUNDAI","model":"TUCSON HYBRID","year_from":2025,"year_to":2026,"match":"base","vehicle_ids":["2025_hyundai_tucson","2026_hyundai_tucson"]},{"make":"HYUNDAI","model":"TUCSON PLUG-IN HYBRID","year_from":2025,"year_to":2026,"match":"base","vehicle_ids":["2025_hyundai_tucson","2026_hyundai_tucson"]}],"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":[]}