Reliability AnalysisBased on known issue patterns, repair cost data, and ownership trends · How we score

2021 Mazda Mazda3 Reliability ReportA- grade · low risk · system-by-system breakdown

88/ 100

KeepScore

LOW RISK

Grade: A-

A stylish and sophisticated compact car that brings excellent reliability and a premium feel without the premium price tag.

Full system breakdown + what I would do

Quick Facts · 2021 Mazda Mazda3

  • The system most likely to surface first: infotainment system (minor severity).
  • Has 1 NHTSA recall on record — the most notable involves the tires:valve.
  • Scores 4 points below the strongest nearby year — the 2023 Mazda Mazda3 earns a 92.

Is the 2021 Mazda Mazda3 Worth Buying?

The 2021 Mazda3 stands as one of the most compelling and reliably built compact vehicles you can acquire on the used market. It delivers an upscale experience and engaging driving dynamics with a powertrain that has proven exceptionally durable, making it a smart long-term investment.

Biggest Strengths

  • Robust Skyactiv-G engine and transmission
  • High-quality interior materials and build
  • Excellent safety ratings and driver-assist features

What Tends to Fail First on the 2021 Mazda Mazda3

The systems that break first on the 2021 Mazda Mazda3. Mileage windows, repair costs, and fix-before-you-buy notes are in the full report.

1
Infotainment Systemminor
2
Brake Componentsmoderate
3
Minor Electrical Sensorsminor
Typical mileage, cost ranges, and the exact what-to-check list are in the full report.

2021 Mazda Mazda3 Recall History

1 recall on record from NHTSA. Check your VIN atnhtsa.gov to see if the repair was performed.

TIRES:VALVE

Mazda North American Operations (Mazda) is recalling certain 2021 Mazda3 and CX-30 vehicles. Air may suddenly leak from the tire air valve.

What breaks on the 2021 Mazda Mazda3?

Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.

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Other Mazda Mazda3 Years to Consider

Compare KeepScores across nearby years of the Mazda Mazda3. Click any year for its full report.

2021 Mazda Mazda3 Alternatives

Similar class, similar year range — ranked by KeepScore.

Relevant Products for Your 2021 Mazda Mazda3

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Frequently Asked Questions

Full Report

2021 Mazda Mazda3

7-system breakdown, mileage danger zones, repair cost projections, buyer checklist, and expert verdict.

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Complete Owner's Guide

Already own one? Get the 13-chapter owner's guide with specs, service schedules, and fluid capacities.

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Final Step

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