Kia Niro 2023–2024 — technical service bulletin
Bulletin SC338_DPSM · NHTSA communication 11019722 · issued Jun 25, 2025
Technical service bulletin
communication type
Fuel/propulsion System
component
2023–2024
model years
3
vehicle entries
Official summary
VOLUNTARY EMISSIONS SERVICE CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO (SC338) - This document is the announcement to the dealer Parts and Service managers advising that Kia is conducting a Voluntary Emissions Service Campaign to update the battery management system (BMS) to prevent overcharging of the 12V Lithium battery in certain 2023-2024 MY Sportage Hybrid (HEV) vehicles manufactured from February 15, 2022 through October 28, 2023 and 2023 MY Niro Hybrid (HEV) vehicles manufactured from June 21, 2022 through February 6, 2023. These vehicles have not had SA553 completed yet.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.