The vehicle fails to recognize when it is in Park, preventing shutdown and locking. This is a common and persistent issue affecting the electrical system and power train. Estimated repair cost: $300 - $800.

Electrical System Failures

Issues range from battery drain and warning lights to malfunctioning infotainment systems and power accessories. This is a broad category with significant complaint volume. Estimated repair cost: $200 - $1,000.

Engine Performance Issues

Concerns include rough idling, misfires, and potential oil consumption. The 3.6L V6 is generally robust but can develop issues over time. Estimated repair cost: $500 - $2,500.

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2018 Chevrolet Traverse Maintenance guide

Name: Maintenance dataset for 2018 Chevrolet Traverse
Creator: Carfocal

v1.0Updated May 30, 2026Ryan Davis4 Sources Analyzed1 Critical Recalls

MAINTENANCE SUMMARY

The 2018 Chevrolet Traverse, with an 'Below Average' reliability verdict, demands diligent maintenance due to significant powertrain and electrical system concerns. Owners should prioritize addressing the prevalent 'Shift to Park' issue and monitor transmission performance closely.

View Critical Issue: Transmission Performance Issues

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Reliability Score

Est. Annual Maintenance Cost

$800 - $1,200

TSBs & Recalls

437 TSBs | 2 Recalls

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Key Takeaways

The 2018 Traverse has a 'Below Average' reliability verdict, with significant concerns in the powertrain and electrical systems.
The 'Shift to Park' issue is a common and critical problem requiring attention.

3 more takeaways unlock below

Critical service intervals

Common failure analysis

Symptoms and prevention guidance