Kia Carnival 2025 — technical service bulletin
Bulletin OTA_SA593 · NHTSA communication 11010706 · issued Nov 13, 2024
Technical service bulletin
communication type
Electrical System
component
2025
model years
1
vehicle entries
Official summary
OVER-THE-AIR: SOFTWARE UPDATE FOR CENTRAL COMMUNICATION UNIT (SA593) - This Over-the-Air (OTA) software update is designed to update the Central Communication Unit (CCU) logic of certain 2025 Carnival vehicles. This update is designed to help reduce auxiliary battery power consumption while the vehicle is turned off.
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.