2021 Hyundai Sonata Report
Known issues, recalls, running costs, and what to check before you buy.
Overall Score
Key Takeaways
- The 2021 Sonata has a concerning reliability verdict, marked by frequent engine and powertrain complaints.
- Critical recalls affecting the fuel system require verification of completed repairs.
- Expect potential repair costs associated with engine, transmission, and electrical system issues.
- The vehicle boasts excellent safety ratings, with a 5-star overall score from NHTSA.
2021 Hyundai Sonata
The 2021 Hyundai Sonata offers a comfortable ride and modern features, but its reliability record warrants careful consideration for used car shoppers. While it achieved a strong 5-star overall safety rating from NHTSA, the model year is marked by a notable number of recalls and complaints. The primary concerns revolve around the engine, powertrain, and electrical system, with some critical issues reported at low mileage. Potential buyers must prioritize pre-purchase inspections of these key areas and verify recall completion.
Critical Failure Risk
Complaints indicate engines stalling or losing power, often at low mileages. This is a significant concern affecting core vehicle operation. Potential causes range from fuel delivery issues to sensor malfunctions.
Early detection can help you avoid a $1,000-$4,000 repair.
Safety & Bulletins
Campaign counts apply to this model year, not your VIN's repair status. Check your VIN with NHTSA.
Full Recall History →Owner Complaints
Performance & Efficiency
Reliability
Practicality
The score is dragged down by its weaker day-to-day practicality signals.
Who This Car Is For
Best for
Buyers prioritizing safety ratings and modern features over long-term mechanical predictability.
+2 more buyer-fit notes in the full report
Avoid if
Buyers seeking a low-maintenance, highly reliable vehicle.
+2 more buyer-fit warnings in the full report
2021 Hyundai Sonata Reliability Analysis
Explore comprehensive reliability data including official safety recalls, consumer complaints, and common mechanical failures for the 2021 Hyundai Sonata.
Vehicle Specs
- Fuel Type
- Regular
- Seating Capacity
- 5
- Transmission
- Automatic
- Drivetrain
- FWD/Front-Wheel Drive
- Body Style
- Sedan
- EPA Combined MPG
- 27
CarFocal account required
See the full 2021 Hyundai Sonata buyer report before you decide
Most Common Issues
1. ENGINE
Most reportedUsage: 21 reports
2. Powertrain
Usage: 16 reports
First Service Interval
- Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation - Inspect Brakes
Est. shop cost: $80 - $150
Unlock the full maintenance guide for every scheduled service interval and cost forecast.
Free • Takes 20 seconds • Saves Thousands $
Already have an account? Log in
FAQ
Is the 2021 Hyundai Sonata reliable?
The CarFocal Reliability Score for the 2021 Hyundai Sonata is 6.5/10. Reliability score is 6.5/10. NHTSA recalls: 7. Owner complaints: 121.
How practical is the 2021 Hyundai Sonata for daily use?
Practicality score is 4.9/10. The score is dragged down by its weaker day-to-day practicality signals. EPA combined economy is 27 MPG. Seating capacity is 5.
What is the overall score for the 2021 Hyundai Sonata?
The CarFocal Overall Score for the 2021 Hyundai Sonata is 7.3/10. Overall score is 7.3/10 (Good). Confidence 85%. Maintenance 8.5/10. Practicality 4.9/10.
What does it cost to own and maintain a 2021 Hyundai Sonata?
Based on Carfocal's data, First listed service: - Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation - Inspect Brakes at 7,500 miles. Estimated first-year maintenance: $400 - $700. Repair prediction highlight: Engine (typical at 75,000 miles, estimated cost Min: $1,000 • Max: $3,000).
What engine is in the 2021 Hyundai Sonata?
Engine specs list 4 • 2.5.
What transmission does the 2021 Hyundai Sonata use?
According to CarFocal's specs for the 2021 Hyundai Sonata, transmission is Automatic. The paired drivetrain is FWD/Front-Wheel Drive.
What is the combined EPA MPG for the 2021 Hyundai Sonata?
EPA combined estimate is 27 MPG.
What driver assistance and safety features are available on the 2021 Hyundai Sonata?
16 standard driver assistance features. Key features include Anti-lock Braking System, Electronic Stability Control, Traction Control.
How many people fit in a 2021 Hyundai Sonata?
According to CarFocal's specs for the 2021 Hyundai Sonata, seating capacity is 5.
What body style is the 2021 Hyundai Sonata?
According to CarFocal's specs for the 2021 Hyundai Sonata, body style is sedan.
What drivetrain does the 2021 Hyundai Sonata use?
According to CarFocal's specs for the 2021 Hyundai Sonata, drivetrain is FWD/Front-Wheel Drive. Transmission is Automatic.
What are the NHTSA safety ratings for the 2021 Hyundai Sonata?
NHTSA ratings: Overall 5/5 • Frontal 4/5 • Side 5/5 • Rollover 5/5.
What are the most common engine problems on the 2021 Hyundai Sonata?
Top complaint category: engine (21 reports, 17.4% of complaints).
Are there open safety recalls on the 2021 Hyundai Sonata?
This model year has 7 official safety campaigns listed.
Should buyers consider alternatives to the 2021 Hyundai Sonata?
Alternatives listed in this guide: 2021 Toyota Camry and 2021 Honda Accord.