2021 Hyundai Sonata reliability record
Every consumer complaint and recall the U.S. government (NHTSA) has on file for the 2021 Hyundai Sonata — the repair risk behind the ownership cost.
- NHTSA complaints
- 167
- 167 in the last 5 years
- Top problem area
- ENGINE
- 32 complaints
- Recalls on record
- 4
- see below
- Reported harm
- 11 reported crashes · 24 injuries
What owners report fails — 2021 Hyundai Sonata
- ENGINE 32
- UNKNOWN OR OTHER 29
- POWER TRAIN 20
- FUEL/PROPULSION SYSTEM 16
- ELECTRICAL SYSTEM 15
4 recalls on record for the 2021 Hyundai Sonata
- NHTSA 25V796000 · 2026 · FUEL SYSTEM, GASOLINE A melted fuel tank can leak, increasing the risk of a fire.
- NHTSA 22V746000 · 2023 · POWER TRAIN:AUTOMATIC TRANSMISSION Loss of drive power increases the risk of a crash.
- NHTSA 21V00M000 · 2022 · VISIBILITY:WINDSHIELD A windshield that detaches from a vehicle during a crash can increase the risk of injury.
- NHTSA 21V524000 · 2021 · FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LI A fuel leak increases the risk of a fire.
Estimate the 5-year cost to own a 2021 Hyundai Sonata
A vehicle's complaint record hints at the repair and maintenance budget you'll need. Add your state, purchase price, and mileage to the TCO calculator for the full picture.
Open TCO calculatorThese are unverified consumer reports and manufacturer recalls filed with the National Highway Traffic Safety Administration — not validated defect rates, and not adjusted for how many 2021 Hyundai Sonata units were produced or sold. High-volume and older vehicles naturally accumulate more complaints. Use this as one research signal, not a verdict on any individual vehicle. Data as of 2026. Source: NHTSA Office of Defects Investigation (public domain).
Frequently asked questions
Is the 2021 Hyundai Sonata reliable?
NHTSA has 167 consumer complaints on record for the 2021 Hyundai Sonata and 4 recalls. The most-reported problem area is engine (32 reports). These are unverified consumer reports filed with the government, not validated failure rates, and are not adjusted for how many 2021 Hyundai Sonata units were produced — popular vehicles naturally accumulate more reports.
What are the most common problems with the 2021 Hyundai Sonata?
Owners most often report problems with: engine (32), unknown or other (29), power train (20), fuel/propulsion system (16). Each figure is the number of complaints filed with NHTSA for this exact model year.
How much does it cost to own a 2021 Hyundai Sonata?
Ownership cost depends on your state taxes, insurance, fuel, and the maintenance the vehicle's reliability record implies. Use the CarOutlay 5-year TCO calculator to estimate the full cost including the repair risk this complaint record suggests.