Kia EV9 2025–2026 — technical service bulletin
Bulletin TSB_ELE427 · NHTSA communication 11036137 · issued Aug 11, 2026
Technical service bulletin
communication type
Electrical System
component
2025–2026
model years
2
vehicle entries
Official summary
TECHNICAL SERVICE BULLETIN: VEHICLE-TO-EVERYTHING (V2X) SOFTWARE UPGRADE - This bulletin provides information to install the Vehicle-to-Everything ‘V2X’ function enhancements by upgrading the software of the Central Communication Unit ‘CCU’ on certain 2025 - 2026MY EV9 (MV1a) vehicles produced at Kia Georgia (KaGA) that have been unable to be updated using the Over-The-Air ‘OTA’ method. The V2X technology allows EV9 vehicles to interact with other devices such as Vehicle-to-Home ‘V2H’ and Vehicle-to-Grid ‘V2G’ technology which enables bidirectional charging, where the EV's battery can be used
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.