Before buying a used 2021 Hyundai Sonata, check whether recall repairs were completed, how it scored in crash tests and what owners report most often. Ask the seller for service records covering any recall listed below.
A 0–100 grade from public NHTSA data — higher means fewer reported problems. How it's calculated
134 complaints filed with NHTSA (7 involving a crash, 0 a fire). Most-reported areas:
Source: NHTSA owner complaints. Complaints are unverified reports, not confirmed defects.
| Version | City | Highway | Combined |
|---|---|---|---|
| Sonata — Auto (AM-S8), 4 cyl, 2.5 L, Turbo, SIDI & PFI | 10.2 L/100 km (23 mpg) | 7.1 L/100 km (33 mpg) | 8.7 L/100 km (27 mpg) |
| Sonata — Auto (S8), 4 cyl, 1.6 L, Turbo, SIDI | 8.7 L/100 km (27 mpg) | 6.4 L/100 km (37 mpg) | 7.8 L/100 km (30 mpg) |
| Sonata — Auto (S8), 4 cyl, 2.5 L, SIDI & PFI | 8.7 L/100 km (27 mpg) | 6.4 L/100 km (37 mpg) | 7.6 L/100 km (31 mpg) |
| Sonata — Auto (S8), 4 cyl, 2.5 L, SIDI & PFI; Stop-Start | 8.4 L/100 km (28 mpg) | 6.2 L/100 km (38 mpg) | 7.4 L/100 km (32 mpg) |
| Sonata Hybrid — Auto (AM-S6), 4 cyl, 2.0 L | 5.2 L/100 km (45 mpg) | 4.6 L/100 km (51 mpg) | 5 L/100 km (47 mpg) |
| Sonata Hybrid Blue — Auto (AM-S6), 4 cyl, 2.0 L | 4.7 L/100 km (50 mpg) | 4.4 L/100 km (54 mpg) | 4.5 L/100 km (52 mpg) |
Source: U.S. EPA / fueleconomy.gov. Converted to L/100 km for Canadian buyers.
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.
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.
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.
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.
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.
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.
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.
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.…
Source: U.S. NHTSA. Canadian-market vehicles can have different recalls — check Transport Canada's recall database. Always confirm recall status for a specific VIN with a dealer.
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2021 Hyundai Sonata 4 DR FWD
Source: NHTSA New Car Assessment Program.