Kia lemon law claims in California are filed under the Song-Beverly Act against Kia America, Inc. Kia participates in BBB Auto Line. Kia shares the Theta II 2.0L and 2.4L gasoline engine platform with sister-brand Hyundai and has the same engine-seizure defect on Optima, Sorento, Sportage, and Soul. Kia EVs (EV6, EV9, Niro EV) share the E-GMP architecture with Hyundai Ioniq and inherit the same ICCU charging unit failures. Other defects include Telluride and Carnival transmission issues, anti-theft software vulnerabilities, and SmartSense ADAS issues.
Notable Kia Pattern Defects
- Theta II 2.0L and 2.4L engine seizures. Optima, Sorento, Sportage, Soul (2011–2019); rod-bearing failures; same defect as Hyundai.
- EV6 / EV9 / Niro EV ICCU failures. Reduced or no charging.
- 12V battery drain.
- Telluride 8-speed transmission issues.
- Carnival transmission shifting.
- Anti-theft software vulnerabilities. Same as Hyundai (2011–2022 without immobilizer).
- SmartSense AEB issues.
- Stinger GT exhaust/turbo.
Models Covered
- Rio, Forte, K5, Stinger, Soul, Seltos, Sportage, Sorento, Telluride, Carnival, Niro, Niro EV, EV6, EV9
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