Dcu communication logic improvement
Kia technical service bulletin TSB_ELE413 for 2025-2026 Kia Sorento, 2025-2026 Kia K5 and 2025-2026 Kia Carnival and others.
- Bulletin number
- TSB_ELE413
- Component
- Electrical system
- Summary
- TECHNICAL SERVICE BULLETIN: DCU COMMUNICATION LOGIC IMPROVEMENT - This bulletin provides the procedure to upgrade the Data Connectivity Unit (DCU) system software on some 2025–2026MY vehicles listed in the table below. Kia has identified that Connected Car Services (CCS) functionality may intermittently fail due to temporary DCU communication issues. This condition can impact convenience and connectivity features by causing the Remote Start and Remote Climate functions to become inoperative, prevent vehicle status updates in the Kia Access app, and interrupt connected navigation routing services.
Owners of these vehicles have filed 212 complaints in the electrical category.
Vehicles covered
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