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DN8 · Sedan

2021 Hyundai Sonata

Common problems & what to know before you buy

Before you message the seller, know the documented failure patterns, repair cost exposure, and risk level for the 2021 Hyundai Sonata.

Safety record

Recalls on the 2021 Hyundai Sonata

Recall·21V524000

Fuel system: hoses

5L turbocharged engines.

Recall·21V00M000

Visibility: windshield

During manufacturing, the windshield may not have been properly bonded to the vehicle, allowing it to detach in a crash.

Recall·22V746000

Power train: automatic transmission

The vehicle's "fail-safe" limited-mobility drive mode may be impaired, when prompted by a transmission oil pump malfunction, which can…

1 more in the guide, with whether each one was done on the car you're looking at.

Source: NHTSA

Owner complaints

What 135 owners reported

Power train25
Engine18
Electrical system16
Fuel system13

Source: NHTSA

Specifications

2021 Hyundai Sonata at a glance

Trims
Blue HybridLimitedLimited HybridN LineSESELSEL HybridSEL Plus
Engine
2.0L 4-Cylinder Hybrid, 1.6L 4-Cylinder Turbo, 2.5L 4-Cylinder Turbo, 2.5L 4-Cylinder
Transmission
Automatic 6-spd, Automatic 8-spd, DCT 8-spd
Drivetrain
FWD
Fuel
Hybrid, Gasoline
Body style
Sedan
Generation

About the DN8

The 2020-present Hyundai Sonata is the DN8 generation, built on Hyundai's third-generation platform with a much lower, wider stance and a distinctive light signature running along the hood edge. Engines are the 2.5-liter Smartstream four-cylinder, a 1.6-liter turbocharged unit, and a 2.5-liter turbocharged engine in the N Line producing 290 horsepower, paired with an eight-speed automatic or dual-clutch. A hybrid with an available solar roof sits in the range, and all versions drive the front wheels.

This generation brought a dramatic improvement in interior design and technology, with available digital displays and a remote parking function operated from the key. The N Line gave the Sonata performance credentials it had not previously had. A facelift for 2024 revised the front-end styling substantially.

As a used buy, the DN8 Sonata is a well-equipped and distinctive mid-size sedan in a shrinking segment, which keeps used prices reasonable. The Smartstream engines are a newer family than the Theta II units that caused problems in previous generations. The relevant ownership consideration for earlier years is the theft vulnerability affecting certain Hyundai and Kia models built without an engine immobilizer, and confirming that a specific car received the software remedy is worthwhile.

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Other Hyundai Sonata years

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FAQ

Frequently asked questions

What are the common problems with the 2021 Hyundai Sonata?

Owners have filed 135 complaints about the 2021 Hyundai Sonata with NHTSA, most often about the engine. There are 4 recall campaigns covering this model year. Squeezed's free research-backed buyer guide cross-references these against documented failure patterns and mileage-stage risks, sorted by severity, in about a minute.

Is the 2021 Hyundai Sonata reliable?

Reliability depends heavily on the specific configuration and how the car was maintained. Start with the 4 open recall campaigns on this model year and confirm the work was completed. Generate a Squeezed buyer guide for this exact vehicle to see a reliability snapshot, repair-cost exposure, and the questions to ask the seller before you buy.

Should I still get a pre-purchase inspection on a 2021 Hyundai Sonata?

Always. A Squeezed buyer guide is the triage step before the inspection: it shows you the documented failure patterns and what to check so you can decide which 2021 Hyundai Sonata listings are even worth a mechanic's time, then walk into the PPI knowing exactly what to look for.

Squeezed is a buyer guide based on public data and industry patterns, not a mechanical inspection. Always get a professional pre-purchase inspection before you buy.