Hyundai · model year 2021
2021 Hyundai Sonata
Specifications and certified data for the 2021 model year. All Hyundai Sonata model years →
2021 US EPA fuel-economy records
| Year | Engine | Drive | Transmission | Fuel | MPG (US) comb. | CO₂ g/mi | EV range mi | Source |
|---|---|---|---|---|---|---|---|---|
| 2021 | 1.6 L 4-cyl | Front-Wheel Drive | Automatic (S8) | Regular | 30 | 293 | — | EPA ↗ |
| 2021 | 2.0 L 4-cyl | Front-Wheel Drive | Automatic (AM-S6) | Regular | 47 | 189 | — | EPA ↗ |
| 2021 | 2.0 L 4-cyl | Front-Wheel Drive | Automatic (AM-S6) | Regular | 52 | 172 | — | EPA ↗ |
| 2021 | 2.5 L 4-cyl | Front-Wheel Drive | Automatic (S8) | Regular | 31 | 293 | — | EPA ↗ |
| 2021 | 2.5 L 4-cyl | Front-Wheel Drive | Automatic (S8) | Regular | 32 | 282 | — | EPA ↗ |
| 2021 | 2.5 L 4-cyl | Front-Wheel Drive | Automatic (AM-S8) | Regular | 27 | 335 | — | EPA ↗ |
US EPA test figures (US MPG, US test cycle), fueleconomy.gov ↗, US government public domain.
US NHTSA safety ratings
| Vehicle | Overall | Front | Side | Rollover | Source |
|---|---|---|---|---|---|
| 2021 Hyundai Sonata 4 DR FWD | ★★★★★ (5/5) | ★★★★☆ (4/5) | ★★★★★ (5/5) | ★★★★★ (5/5) | NHTSA ↗ |
| 2021 Hyundai Sonata Hybrid 4 DR FWD | ★★★★★ (5/5) | ★★★★☆ (4/5) | ★★★★★ (5/5) | ★★★★★ (5/5) | NHTSA ↗ |
NHTSA 5-Star Safety Ratings (US government, public domain). US-market versions; not the same tests as Euro NCAP.
US safety recalls
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25V796000 2025-11-17 · model years 2020, 2021, 2022, 2023
FUEL SYSTEM, GASOLINE
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…
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22V746000 2022-10-06 · model years 2021, 2022
POWER TRAIN:AUTOMATIC TRANSMISSION
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…
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21V00M000 2021-12-28 · model years 2021
VISIBILITY:WINDSHIELD
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…
NHTSA recalls database (US government, public domain). Recalls apply to US-market vehicles; check the manufacturer for your country.
Generation in 2021
Sources
- US EPA / DOE FuelEconomy.gov — https://www.fueleconomy.gov/feg/ws/index.shtmlUS Government public domain
- NHTSA 5-Star Safety Ratings API — https://api.nhtsa.gov/SafetyRatingsUS Government public domain
- NHTSA recalls database — https://www.nhtsa.gov/recallsUS Government public domain
- Car Model Index — https://models.autoculturesociety.com/Compiled record. Sources that do not permit reuse are not copied; this index is credited instead.