### Hyundai and Kia Issue Major Recall Due to Fuel Tank Melting Risks Hyundai and Kia have announced a significant recall affecting a total of **335,590 vehicles**, primarily the Sonata and K5 models. The recall is prompted by concerns that the fuel tanks in these vehicles may deform or melt due to high temperatures, potentially leading to fuel leaks and fire hazards. This issue is linked to a malfunctioning check valve that can allow air to enter the fuel tank, causing it to expand and come into contact with hot exhaust components, which can result in melting and leaks [https://autos.yahoo.com/safety-and-recalls/articles/hyundai-kia-recall-335-000-172500795.html][https://www.foxbusiness.com/retail/kia-hyundai-issue-major-recalls-over-335k-vehicles-due-fuel-tank-melting-risk]. ### Breakdown of the Recall and Its Implications 1. **Scope of the Recall**: - Hyundai is recalling **85,043 Sonatas**. - Kia is recalling **250,547 K5 sedans**. - The affected models are primarily from the **2021-2024 production years** [https://autos.yahoo.com/safety-and-recalls/articles/hyundai-recalls-85-043-sonatas-152600256.html][https://112.ua/en/kia-vidklikae-250-tisac-k5-cerez-rizik-zajmanna-palivnogo-baka-114008]. 2. **Nature of the Defect**: - The defect involves a **damaged check valve** that can lead to excessive pressure in the fuel tank. - This pressure can cause the tank to expand and potentially contact hot exhaust components, leading to melting and fuel leaks [https://www.k105.com/2025/11/21/hyundai-kia-recall-over-300000-vehicles-due-to-possibility-of-fuel-tank-melting][https://www.wcnc.com/article/news/nation-world/kia-recall-fuel-tank-issue-k5-models/507-41bd9baa-1a9a-4c45-bba3-90ceb586bc36]. 3. **Safety Measures and Owner Notifications**: - Kia has stated that they will begin sending out recall letters in **January**. - During service visits, dealers will inspect the fuel tanks and replace them if necessary, along with the faulty check valve [https://112.ua/en/kia-vidklikae-250-tisac-k5-cerez-rizik-zajmanna-palivnogo-baka-114008][https://www.usatoday.com/story/cars/recalls/2025/11/20/kia-recalls-k5-vehicles/87368186007]. ### Supporting Evidence and Data - **Recall Statistics**: - **Total Vehicles Affected**: 335,590 - **Hyundai Sonata**: 85,043 - **Kia K5**: 250,547 - **Potential Risks**: - Melting fuel tanks can lead to **fuel leaks** and **fire hazards**. - Warning signs for drivers may include unusual sounds from the fuel tank area or warning lights on the dashboard [https://www.carcomplaints.com/news/2025/kia-k5-fuel-tank-recall-tanks-swell-melt.shtml][https://www.topspeed.com/kia-k5-and-hyundai-sonatas-recalled]. ### Conclusion and Recommendations In summary, **Hyundai and Kia's recall of over 335,000 vehicles** highlights significant safety concerns regarding fuel tank integrity. The following points summarize the key findings: 1. **Recall Scope**: Over 335,000 vehicles, including Hyundai Sonatas and Kia K5s, are affected. 2. **Defect Details**: A malfunctioning check valve can lead to fuel tank melting, posing fire risks. 3. **Safety Actions**: Owners will be notified, and necessary repairs will be conducted starting in January. It is crucial for affected vehicle owners to remain vigilant for any signs of issues and to respond promptly to recall notifications to ensure their safety on the road [https://autos.yahoo.com/safety-and-recalls/articles/hyundai-kia-recalling-335-000-161300064.html][https://www.automotiveaddicts.com/110556/hyundai-sonata-gas-tank-recall-same-fire-risk-kia-k5-sedans].