A significant number of complaints relate to the fuel/propulsion system, including injector issues and potential problems with fuel tank integrity. These can lead to reduced engine performance or stalling. Estimated repair cost: $500 - $2,000.

Engine Performance Issues

Engine-related complaints are frequent, often manifesting as power loss or stalling. These issues can occur early in the vehicle's life and point to potential internal component wear or system malfunctions. Estimated repair cost: $1,000 - $4,000.

Electrical System Faults

While less frequent than powertrain issues, electrical system complaints are present. These can range from minor sensor issues to more significant problems affecting vehicle operation. Estimated repair cost: $200 - $1,000.

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2023 Hyundai Sonata Maintenance guide

Name: Maintenance dataset for 2023 Hyundai Sonata
Creator: Carfocal

v1.0Updated May 30, 2026Ethan Miller4 Sources Analyzed2 Critical Recalls

MAINTENANCE SUMMARY

The 2023 Hyundai Sonata, with a 'Below Average' reliability verdict, demands attention to its fuel and engine systems, which account for nearly half of its 104 reported complaints. Owners should prioritize inspections for these components to mitigate potential early-life failures.

Powertrain: Hybrid (HEV)

View Critical Issue: Powertrain Malfunctions

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Reliability Score

Est. Annual Maintenance Cost

$400 - $600

TSBs & Recalls

10 TSBs | 5 Recalls

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Key Takeaways

Focus on fuel system and engine health due to high complaint volumes.
Adhere strictly to oil change and air filter replacement intervals.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance