Kia EV6 2025–2026 — technical service bulletin
Bulletin TSB_ELE408 · NHTSA communication 11026753 · issued Dec 18, 2025
Technical service bulletin
communication type
Electrical System
component
2025–2026
model years
2
vehicle entries
Official summary
TECHNICAL SERVICE BULLETIN: SERVICE ACTION: DCU REPLACEMENT (SA638) - This bulletin provides information to replace faulty Data Connectivity Units (DCUs) on certain 2026MY Sportage and 2025MY EV6 vehicles that may cause modem data to be missing on the Connected Car Navigation Cockpit (ccNC) head unit, resulting in Kia Connect failing to activate.
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.