Kia EV6 2025–2026 — technical service bulletin
Bulletin TSB_ELE406 · NHTSA communication 11026827 · issued Dec 24, 2025
Technical service bulletin
communication type
Electrical System
component
2025–2026
model years
2
vehicle entries
Official summary
TECHNICAL SERVICE BULLETIN: SERVICE ACTION: DCU OPERATION SOFTWARE LOGIC IMPROVEMENT (SA635) - This bulletin provides information to improve the Data Connectivity Unit (DCU) performance on certain 2026MYSportage and 2025MY EV6 vehicles equipped with Kia Connect Services. The affected vehicles may encounter Remote Start/ Remote Climate Control function not working, Vehicle Status on the Kia Access App not updating, Connected navigation/routing not functioning properly.
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.