A recall was issued for potential sudden air leaks from tire air valves. This issue could lead to rapid tire deflation. Estimated repair cost: $50 - $150.

2021 Mazda Mazda3 Maintenance guide

Name: Maintenance dataset for 2021 Mazda Mazda3
Creator: Carfocal

v1.0Updated Jun 12, 2026Ethan Miller4 Sources Analyzed

MAINTENANCE SUMMARY

The 2021 Mazda3, with a reliability score of 7.8 and an 'Excellent' public verdict, presents a generally sound ownership proposition. Its single recall for tire valves is a minor concern, but a high TSB count of 84 suggests attention to potential minor issues.

View Critical Issue: Tire Valve Leak

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Reliability Score

Est. Annual Maintenance Cost

$400 - $700

TSBs & Recalls

84 TSBs | 1 Recalls

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Key Takeaways

The 2021 Mazda3 has a good reliability rating, supported by low recall and complaint volumes.
A high TSB count indicates potential for minor issues requiring attention.

2 more takeaways unlock below

Critical service intervals

Common failure analysis

Symptoms and prevention guidance