Significant concentration of critical engine failures reported at low mileage, including seizure and rod bearing failure. This is the most frequent and severe complaint category. Estimated repair cost: $3,000 - $7,000+.

Powertrain Hesitation/Failure

Complaints frequently mention issues with the powertrain, including delayed or sudden loss of acceleration, hesitation, and harsh shifting, particularly with the Automatic (S6) transmission. Estimated repair cost: $1,000 - $4,000+.

Electrical System Issues

While less frequent than engine or powertrain issues, electrical system complaints include various malfunctions that can impact vehicle operation. Estimated repair cost: $200 - $1,000+.

Brake System Concerns

Some complaints relate to the service brakes, suggesting potential wear or performance issues that require attention. Estimated repair cost: $300 - $800+.

CARFOCALvehicle research

2018 Hyundai Tucson Maintenance guide

Name: Maintenance dataset for 2018 Hyundai Tucson
Creator: Carfocal

v1.0Updated May 30, 2026Ethan Miller4 Sources Analyzed1 Critical Recalls

MAINTENANCE SUMMARY

The 2018 Hyundai Tucson, with 480 complaints and a 'Below Average' reliability verdict, demands vigilant maintenance focused on its engine and powertrain. Significant concentrations of critical failures, including delayed/loss of acceleration and engine seizure, are reported at low mileages.

View Critical Issue: Engine Failure

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Reliability Score

Est. Annual Maintenance Cost

$400 - $700

TSBs & Recalls

36 TSBs | 1 Recalls

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Key Takeaways

The 2018 Hyundai Tucson has a 'Below Average' reliability verdict, primarily due to significant engine and powertrain failures.
Engine seizure and rod bearing failures are critical issues reported at low mileages.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance