{"nhtsa_id":11014286,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-02-17","date":"2025-02-11","document_id":"25-01-010H DN","mfr_campaign":"9B4","replaces":null,"component":"FUEL/PROPULSION SYSTEM","mfr_system":null,"summary":"Certain Elantra hybrid (CN7 HEV), Sonata hybrid (DN8 HEV), and Tucson hybrid (NX4 HEV) vehicles may exhibit a warning light due to DTC Code P1BB20 (12V Lithium Battery Cell Voltage High). Follow the procedure in TSB 25-01-010H (or latest version) to perform the update the Battery management System (BMS) software.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11014286-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11014286-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11014286","components":[{"id":"fuel-system","name":"Fuel system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"HYUNDAI","model":"ELANTRA HYBRID","year_from":2021,"year_to":2023,"match":"base","vehicle_ids":["2021_hyundai_elantra","2022_hyundai_elantra","2023_hyundai_elantra"]},{"make":"HYUNDAI","model":"SONATA HYBRID","year_from":2020,"year_to":2022,"match":"base","vehicle_ids":["2020_hyundai_sonata","2021_hyundai_sonata","2022_hyundai_sonata"]},{"make":"HYUNDAI","model":"TUCSON HYBRID","year_from":2022,"year_to":2022,"match":"base","vehicle_ids":["2022_hyundai_tucson"]},{"make":"HYUNDAI","model":"TUCSON HYBRID","year_from":2024,"year_to":2024,"match":"base","vehicle_ids":["2024_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":[]}