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Hyundai Sonata fuel tank can melt and leak

NHTSA campaign 25V796000 · Reported 2025-11-18 · Hyundai Motor America

high How serious is it? About this label

Leaking fuel near hot exhaust parts can start a fire, so treat this as urgent; the notice does not instruct owners to stop driving or park outside.

What's wrong, in plain English

On certain Sonata sedans, a damaged check valve can let air get into the fuel tank. The tank then swells up and can touch hot exhaust parts underneath the car, which melts the plastic. A melted tank can leak gasoline. Dealers will inspect and replace the check valve, look over the fuel tank and replace it if it is damaged, and also check and update the engine computer software. All of this work is done at no cost to you.

What you should do

1. Check your VIN at nhtsa.gov/recalls — Sonata VINs became searchable November 19, 2025. 2. Contact your Hyundai dealer for an appointment and mention recall number 286. 3. Get the free inspection and repair; for help call Hyundai customer service at 1-855-371-9460.

Affected vehicles (4)

Who to contact

Hyundai — official Hyundai recall lookup

Customer service: 1-855-371-9460

Any franchised dealer for the brand can do the repair. Phone numbers are taken from manufacturer sites and recent NHTSA notices; if one has changed, the number in your own recall letter is the one to use.

The bigger picture

Official notice

Component
FUEL SYSTEM, GASOLINE
Summary
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.
Safety risk
A melted fuel tank can leak, increasing the risk of a fire.
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.

Verify your specific vehicle by VIN at nhtsa.gov. Recall repairs are free of charge by law.