Brake System Malfunction

Complaints indicate issues with the electronic brake boost system, including sudden brake failures and warning lights. This has been a subject of recall. Estimated repair cost: $300 - $1,500.

Fuel/Propulsion System Issues

Some owners report problems related to the fuel system, which can manifest as rough idling or starting difficulties. Estimated repair cost: $200 - $1,000.

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2021 Buick Encore GX Maintenance guide

Name: Maintenance dataset for 2021 Buick Encore GX
Creator: Carfocal

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

MAINTENANCE SUMMARY

The 2021 Buick Encore GX presents a below-average reliability verdict, with significant concerns in its engine and service brakes systems. Early-onset failures and recurring issues necessitate diligent maintenance and proactive inspections.

View Critical Issue: Engine Power Loss / Check Engine Light

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Reliability Score

Est. Annual Maintenance Cost

$300 - $600

TSBs & Recalls

84 TSBs | 2 Recalls

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Key Takeaways

Below-average reliability verdict due to concerns in critical systems.
Engine and brake system issues are the most frequently reported problems.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance