Hyundai Sonata Problems: 9 Issues Every Owner Should Know

What are the most common Hyundai Sonata problems?

According to Au7o's analysis of 13,072+ owner reports, the 2011-2025 Hyundai Sonata has 9 documented issues. The most frequently reported are: Theta II Engine Seizure/Failure, Connecting Rod Bearing Failure (Theta II), Electric Power Steering (EPS) Failure. Of these, 4 are rated critical and should be addressed promptly.

Is the Hyundai Sonata reliable?

The 2011-2025 Hyundai Sonata has 9 known issues documented across 13,072+ owner reports. 4 issues are rated critical: Theta II Engine Seizure/Failure and Connecting Rod Bearing Failure (Theta II) and Electric Power Steering (EPS) Failure and Front Radar / Forward Collision-Avoidance Warning Disabled by Sensor or Calibration Faults. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Hyundai Sonata problems?

Repair costs for known Hyundai Sonata issues range from $0 to $8,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Theta II Engine Seizure/Failure, typically costs $0-$8,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What year Hyundai Sonata is the most reliable?

Reliability varies across model years of the Hyundai Sonata. Based on owner reports, issues are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 2011-2025 Hyundai Sonata with 9 documented issues from 13,072+ owner reports.

Hyundai Sonata Problems: 9 Issues Every Owner Should Know

All 9 Known Issues

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Frequently Asked Questions

What are the most common Hyundai Sonata problems?

Is the Hyundai Sonata reliable?

How much does it cost to fix common Hyundai Sonata problems?

What year Hyundai Sonata is the most reliable?