{"nhtsa_id":11036686,"type":"service_campaign","type_name":"Service campaign","date_added":"2026-09-02","date":"2026-08-17","document_id":"26-01-065H DCS","mfr_campaign":"9C5","replaces":null,"component":"FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM","mfr_system":null,"summary":"Certain Kona Electric (OS EV) and Ioniq Electric (AE EV) vehicles are eligible for a Battery Management System (BMS) software update. This update to the BMS software improves the system's diagnostic capability. Follow Technical Service Bulletin (TSB) 26-01-065H to complete the BMS software update.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11036686-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11036686-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11036686","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"fuel-system","name":"Fuel system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"HYUNDAI","model":"IONIQ ELECTRIC","year_from":2020,"year_to":2021,"match":"base","vehicle_ids":["2020_hyundai_ioniq","2021_hyundai_ioniq"]},{"make":"HYUNDAI","model":"KONA ELECTRIC","year_from":2019,"year_to":2023,"match":"base","vehicle_ids":["2019_hyundai_kona","2020_hyundai_kona","2021_hyundai_kona","2022_hyundai_kona","2023_hyundai_kona"]}],"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":[]}