{"nhtsa_id":10244988,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-11-07","date":"2023-10-17","document_id":"23-01-073H-1","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"Certain 19-23MY Kona Electric (OS EV) vehicles may experience a condition of EV warning light ON with Diagnostic Trouble Code (DTC) P1AA6 to P1AAF found stored. The Battery Management System (BMS) software update will be performed to enhance battery diagnostics logic. The service procedure contained in TSB 23-01-073H-1 (or latest version) is summarized as follows: • Vehicles that do not have EV Warning Light “ON” will only need the BMS software update. • Certain vehicles incurring EV Warning Light “ON” and DTC P1AA6 found stored with Freeze Frame Data Information Code 1=128 will only require the BMS Update. • Certain other DTC P1AA6 Information Code 1-2 values or DTC P1AA7 to P1AAF will require the Battery System Assembly (BSA) to be replaced and then the BMS Update to be performed.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10244988-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10244988-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10244988","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["P1AA6","P1AA7","P1AAF"],"topics":[],"vehicles":[{"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":[]}