Kia Niro EV 2020–2022 — technical service bulletin
Bulletin PI2603_DP · NHTSA communication 11033929 · issued Jun 15, 2026
Technical service bulletin
communication type
Fuel/propulsion System
component
2020–2022
model years
3
vehicle entries
Official summary
PRODUCT IMPROVEMENT CAMPAIGN: DEALER PRINCIPAL MEMO (PI2603) - This document is the announcement to the dealer principals advising that Kia is conducting a Product Improvement Campaign to update the battery management system (BMS) software to enhance battery diagnostic performance in certain 2020-2022 MY Niro EV vehicles manufactured from June 2, 2020 through November 8, 2021.
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.