Kia EV9 2025–2026 — technical service bulletin
Bulletin OTA_ELE427_RELEASE_NOTES · NHTSA communication 11036457 · issued Aug 11, 2026
Technical service bulletin
communication type
Electrical System
component
2025–2026
model years
2
vehicle entries
Official summary
OVER-THE-AIR: OVER-THE-AIR SOFTWARE UPDATE FOR COMMUNICATION CONTROL UNIT: This Over-the-Air (OTA)software update is designed to update the Communication Control Unit (CCU) logic of certain 2025 – 2026MY EV9 vehicles. This update is designed to improve the Communication Control Unit (CCU) logic to enhance charging-related messaging in the app.
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.