Complaints frequently cite issues with the powertrain, including transmission problems and engine performance concerns. This can manifest as rough shifting, hesitation, or loss of power. Estimated repair cost: $500 - $3,000+.

Electrical System Failures

Electrical system complaints are prevalent, ranging from infotainment glitches to critical system failures like power steering loss. The 'Shift to Park' issue is also a notable electrical concern. Estimated repair cost: $200 - $1,500+.

Brake System Malfunctions

Service brake complaints are significant, including instances requiring extreme pedal pressure or complete brake failure. Some issues have been reported shortly after recall remedies were performed. Estimated repair cost: $300 - $1,000+.

Engine complaints include issues like fuel leaks and reduced power. Some failures have been reported at low mileage, suggesting potential manufacturing defects. Estimated repair cost: $400 - $2,500+.

CARFOCALvehicle research

2021 Chevrolet Trailblazer Maintenance guide

Name: Maintenance dataset for 2021 Chevrolet Trailblazer
Creator: Carfocal

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

MAINTENANCE SUMMARY

The 2021 Chevrolet Trailblazer, with 6 recalls and 223 complaints, presents a below-average reliability verdict. Owners should focus on preventative maintenance for the powertrain, electrical system, and service brakes, as these are the most frequently cited issues.

View Critical Issue: Powertrain Issues

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Reliability Score

Est. Annual Maintenance Cost

$700 - $1,200

TSBs & Recalls

86 TSBs | 6 Recalls

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Key Takeaways

Focus on preventative maintenance for the powertrain, electrical system, and brakes due to frequent complaints.
Adhere to recommended service intervals, especially for fluid changes.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance