Electrical System Malfunctions

Complaints frequently involve dashboard malfunctions, loss of power to various systems, and key fob recognition issues. These can range from minor annoyances to critical failures affecting vehicle operation. Estimated repair cost: $300 - $1,500+.

Brake System Grinding or Failure

Service brake complaints highlight grinding noises and brake system failures, often occurring at low mileage. This indicates potential issues with pads, rotors, or the hydraulic system. Estimated repair cost: $400 - $1,000+.

Steering Assist Failure

Failures in steering assist have been reported, making the steering heavy and difficult to maneuver. This can occur at relatively low mileage. Estimated repair cost: $800 - $1,500+.

CARFOCALvehicle research

2021 Chevrolet Blazer Maintenance guide

Name: Maintenance dataset for 2021 Chevrolet Blazer
Creator: Carfocal

v1.0Updated May 30, 2026Ethan Miller4 Sources Analyzed

MAINTENANCE SUMMARY

The 2021 Chevrolet Blazer, with 158 complaints and a 'Below Average' reliability verdict, requires diligent attention to its electrical system, engine, and brakes. Prioritize regular inspections of these critical areas to mitigate potential issues reported at low mileage.

View Critical Issue: Engine Stalling or Performance Issues

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Reliability Score

Est. Annual Maintenance Cost

$400 - $700

TSBs & Recalls

76 TSBs | 2 Recalls

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Key Takeaways

The 2021 Chevrolet Blazer has a 'Below Average' reliability verdict, with 158 complaints logged.
Electrical system issues are the most common concern, followed by engine and brake problems.

2 more takeaways unlock below

Critical service intervals

Common failure analysis

Symptoms and prevention guidance