2018 Hyundai Sonata Report
Known issues, recalls, running costs, and what to check before you buy.
Overall Score
Key Takeaways
- The primary concern for used 2018 Sonata buyers is the engine, which accounts for over 37% of complaints, including oil consumption, stalling, and potential rod bearing failure.
- Electrical system issues and powertrain glitches are also frequently reported, adding to the overall reliability concerns.
- Despite a high NHTSA safety score of 5 stars overall, the mechanical vulnerabilities present a significant ownership risk.
- Fuel economy is a strong point, with a combined EPA rating of 26 MPG.
2018 Hyundai Sonata
Critical Failure Risk
Significant and recurring engine issues are the primary concern, including excessive oil consumption and potential rod bearing failure. These can lead to engine stalling, limp mode, or complete failure. Some issues are reported at very low mileages.
Early detection can help you avoid a $3,000-$7,000 repair.
Safety & Bulletins
Owner Complaints
Performance & Efficiency
Reliability
Practicality
Who This Car Is For
Best for
Savvy buyers who prioritize a thorough pre-purchase inspection and are prepared for potential engine-related repairs.
+2 more buyer-fit notes in the full report
Avoid if
Buyers seeking a trouble-free ownership experience with minimal risk of major mechanical failures.
+2 more buyer-fit warnings in the full report
2018 Hyundai Sonata Reliability Analysis
Explore comprehensive reliability data including official safety recalls, consumer complaints, and common mechanical failures for the 2018 Hyundai Sonata.
Vehicle Specs
- Fuel Type
- Regular
- Seating Capacity
- 5
- Transmission
- Automatic
- Drivetrain
- FWD/Front-Wheel Drive
- Body Style
- Sedan
- EPA Combined MPG
- 26
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Most Common Issues
1. ENGINE
Most reportedUsage: 185 reports
2. Electrical System
Usage: 51 reports
First Service Interval
- Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation - Inspect Brakes
Est. shop cost: $100 - $200
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FAQ
Is the 2018 Hyundai Sonata reliable?
The CarFocal Reliability Score for the 2018 Hyundai Sonata is 6.3/10. Reliability score is 6.3/10. NHTSA recalls: 1. Owner complaints: 495.
How practical is the 2018 Hyundai Sonata for daily use?
Practicality score is 5.4/10. EPA combined economy is 26 MPG. Seating capacity is 5. 4 passenger doors are listed.
What is the overall score for the 2018 Hyundai Sonata?
The CarFocal Overall Score for the 2018 Hyundai Sonata is 7.3/10. Overall score is 7.3/10 (Good). Confidence 85%. Maintenance 8.5/10. Practicality 5.4/10.
What does it cost to own and maintain a 2018 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 60,000 miles, estimated cost Min: $3,000 • Max: $7,000+).
What is the MSRP range for the 2018 Hyundai Sonata?
Base MSRP is $30,500.
What engine is in the 2018 Hyundai Sonata?
Engine specs list 4 • 2.0.
What transmission does the 2018 Hyundai Sonata use?
According to CarFocal's specs for the 2018 Hyundai Sonata, transmission is Automatic. The paired drivetrain is FWD/Front-Wheel Drive.
What is the combined EPA MPG for the 2018 Hyundai Sonata?
EPA combined estimate is 26 MPG.
What driver assistance and safety features are available on the 2018 Hyundai Sonata?
6 standard and 5 optional driver assistance features. Key features include Anti-lock Braking System, Electronic Stability Control, Traction Control.
How many people fit in a 2018 Hyundai Sonata?
According to CarFocal's specs for the 2018 Hyundai Sonata, seating capacity is 5.
What body style is the 2018 Hyundai Sonata?
According to CarFocal's specs for the 2018 Hyundai Sonata, body style is sedan.
What drivetrain does the 2018 Hyundai Sonata use?
According to CarFocal's specs for the 2018 Hyundai Sonata, drivetrain is FWD/Front-Wheel Drive. Transmission is Automatic.
What are the NHTSA safety ratings for the 2018 Hyundai Sonata?
NHTSA ratings: Overall 5/5 • Frontal 5/5 • Side 5/5 • Rollover 4/5.
What are the most common engine problems on the 2018 Hyundai Sonata?
Top complaint category: engine (185 reports, 37.4% of complaints).
Are there open safety recalls on the 2018 Hyundai Sonata?
This model year has 1 official safety campaigns listed.
Should buyers consider alternatives to the 2018 Hyundai Sonata?
Alternatives listed in this guide: 2018 Toyota Camry and 2018 Honda Accord.