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June 27, 2025 Emissions

Voluntary emissions service campaign: owner notification (SC338)

Kia technical service bulletin SC338_OWNR_SG2 for 2023 Kia Niro.

Bulletin number
SC338_OWNR_SG2 (SC338)
Component
Fuel/propulsion system
Summary
VOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER NOTIFICATION (SC338) - This document is the owner notification 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 MY Niro Hybrid (HEV) vehicles to ensure compliance with emissions regulations.

Owners of these vehicles have filed 5 complaints in the fuel system category.

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