Component
FUEL SYSTEM, GASOLINE
Manufacturer
Hyundai Motor America
What Happened
The check valve in your Sonata's fuel system is like a safety valve that prevents air from entering the tank. But if it's damaged, air can sneak in and cause the tank to overheat, potentially melting the plastic.
Risk if Unfixed
If the fuel tank melts, it can leak fuel, which increases the risk of a fire. This could happen while you're driving, and a fire in the engine compartment can be extremely dangerous.
Free Fix
Your Hyundai dealer will inspect and replace the faulty check valve, inspect the fuel tank for damage, and update the engine control unit software — all for free.
Show original NHTSA language
Original — What Happened
Hyundai Motor America (Hyundai) is recalling certain 2020-2023 Sonata vehicles. A damaged check valve can allow air to enter the fuel tank, causing it to expand and contact hot exhaust components, melting the tank.
Original — Risk if Unfixed
A melted fuel tank can leak, increasing the risk of a fire.
Original — Remedy
Dealers will inspect and replace the check valve. The fuel tank assembly will be inspected for damage and replaced if necessary. Additionally, dealers will inspect and update the engine control unit software. All repairs will be performed as necessary, free of charge. Owner notification letters were mailed beginning March 13, 2026. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 286. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on November 19, 2025.
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Repairs are free at any authorized dealer. Find a dealer →