2021 Hyundai Sonata. Advanced data.

Engines and drivetrains 4

EPA test versions for this model year. Fuel cost is the EPA's current estimate, not the price in that year.

Failure mileage by system

Half of owners who gave a mileage reported the problem between 15,000 and 70,000 miles. Median 35,000, from 27 complaints with a mileage.

Mileage owners typed into their NHTSA complaint, all complaints for this model year. People report some problems late, so read it as a range.

Complaints by system

One complaint can name more than one system, so shares can add to more than 100%.

Severity, all complaints

As reported by owners to NHTSA. Not verified.

Recall campaigns 4

• 25V796000 Nov 2025 Fuel System, Gasoline

  Defect. 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.

  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. Hyu

• 22V746000 Oct 2022 Power Train / Automatic Transmission

  Defect. Hyundai Motor Company (Hyundai) is recalling certain 2021-2022 Santa Fe, Sonata, Veloster N, 2022 Santa Cruz, Elantra N, and Kona N vehicles. The vehicle's "fail-safe" limited-mobility drive mode may be impaired, when prompted by a transmission oil pump malfunction, which can result in a complete loss of drive power.

  Risk. Loss of drive power increases the risk of a crash.

  Remedy. Dealers will inspect and replace the transmission, as necessary. Dealers will also update the transmission control unit software. All repairs will be performed free of charge. Owner notification letters were mailed January 10, 2023. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 236.

• 21V00M000 Dec 2021 Visibility / Windshield

  Defect. Hyundai Motor America (Hyundai) is recalling certain 2020-2021 Santa Fe, 2021 Sonata, and Elantra vehicles. During manufacturing, the windshield may not have been properly bonded to the vehicle, allowing it to detach in a crash.

  Risk. A windshield that detaches from a vehicle during a crash can increase the risk of injury.

  Remedy. Dealers will remove and reinstall the front windshield panel, free of charge. Owner notification letters were mailed June 20, 2022. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 216.

• 21V524000 Jul 2021 Fuel System, Gasoline / Delivery / Hoses, Lines/Piping, And Fittings

  Defect. Hyundai Motor America (Hyundai) is recalling certain 2021-2022 Santa Fe and Sonata vehicles equipped with 2.5L turbocharged engines. Fuel may leak at the pipe connection between the high-pressure fuel pump and fuel rail.

  Risk. A fuel leak increases the risk of a fire.

  Remedy. Dealers will inspect and tighten, or replace the fuel pipe as necessary, free of charge. Owner notification letters were mailed on September 3, 2021. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 207.

NHTSA investigations

Manufacturer communications 111

Hyundai filed 111 service communications for this car with NHTSA.

• If you are servicing an applicable vehicle with a Check Engine light on and one or more of the…
• If you are servicing an 8-speed front-wheel-drive vehicle with the DTC or symptoms listed…
• Check engine light in conjunction

Crash ratings by version

Safety equipment

Nearby model years