Voluntary emissions service campaign: ECU emissions software logic improvement (SC357)
Kia technical service bulletin SC357_TSB for 2020-2025 Kia Telluride.
- Bulletin number
- SC357_TSB (SC357)
- Component
- Electrical system
- Summary
- TECHNICAL SERVICE BULLETIN: VOLUNTARY EMISSIONS SERVICE CAMPAIGN: ECU EMISSIONS SOFTWARE LOGIC IMPROVEMENT (SC357) - This bulletin provides information to upgrade the Engine Control Unit (ECU) system software to improve the emissions-related logic on 2020-2025MY Telluride (ON) vehicles equipped with the Lambda II 3.8L GDI engine, produced from January 9, 2019 through October 27, 2025. The subject vehicles may have engine calibrations that were not optimized for emissions standards under certain specific conditions, which may cause the vehicle to release air pollutants which exceed Federal and California standards.
Owners of these vehicles have filed 302 complaints in the electrical category.
Vehicles covered
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