What are the most common problems with the 2021 Mazda CX-3?

The 2021 Mazda CX-3 earns a 'Good' reliability verdict, supported by a strong public score of 9.

How many recalls does the 2021 Mazda CX-3 have?

The 2021 Mazda CX-3 currently has 1 recall on file. Review the full recall report to see affected components and available remedies.

Is the 2021 Mazda CX-3 a good buy used?

Verdict: Recommended. The 2021 Mazda CX-3 earns a 'Good' reliability verdict, supported by a strong public score of 9. A recall for the rearview camera system (23V487000) affects this model; confirm the repair is complete. Expect solid fuel economy with a combined EPA rating of 29 MPG. The CX-3 achieves top marks in NHTSA crash testing, with an overall 5-star rating. While owner complaints are zero, a high TSB count of 43 suggests potential for minor electronic or system glitches. Always verify service history, open recalls, and maintenance records before purchasing.

What maintenance costs should I expect for the 2021 Mazda CX-3?

Refer to the maintenance cost guide for interval schedules, DIY difficulty ratings, and typical repair cost ranges for the 2021 Mazda CX-3.

2021 Mazda CX-3 Report

Known issues, recalls, running costs, and what to check before you buy.

Updated Jun 12, 2026Ethan Miller

Overall Score

Our Verdict

Recommended

Key Takeaways

The 2021 Mazda CX-3 earns a 'Good' reliability verdict, supported by a strong public score of 9.
A recall for the rearview camera system (23V487000) affects this model; confirm the repair is complete.
Expect solid fuel economy with a combined EPA rating of 29 MPG.
The CX-3 achieves top marks in NHTSA crash testing, with an overall 5-star rating.

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Overview

2021 Mazda CX-3

The 2021 Mazda CX-3 presents itself as a stylish and agile subcompact SUV, aiming to blend Mazda's signature driving dynamics with everyday practicality. For the used car shopper, this model year offers a generally positive ownership outlook, bolstered by excellent safety scores. However, a single recall concerning the rearview camera system warrants careful attention. While the CX-3 boasts a 'Good' reliability verdict, the presence of 43 Technical Service Bulletins (TSBs) suggests a history of minor, though potentially numerous, issues that savvy buyers should investigate.

Critical Failure Risk

A recall (23V487000) addresses flickering or distorted rearview camera images due to potential camera or wiring harness issues. While the recall aims to fix this, improper repair could lead to residual problems.

Early detection can help you avoid a $200-$500 repair.

Open Maintenance Analysis →

Safety & Bulletins

Recall Campaigns1

Service Bulletins43

Campaign counts apply to this model year, not your VIN's repair status. Check your VIN with NHTSA.

Full Recall History →

Owner Complaints

No primary complaint themes found.

Detailed Issue Breakdown →

Performance & Efficiency

Fuel Efficiency

Combined

MPG

City

MPG

Highway

MPG

Full Vehicle Specifications ↓

Reliability

Practicality

Buyer Fit

Who This Car Is For

Best for

Drivers seeking a stylish and engaging subcompact SUV with a focus on driving dynamics.

+2 more buyer-fit notes in the full report

Avoid if

Shoppers who require maximum cargo space or rear-seat passenger room in a subcompact SUV.

+2 more buyer-fit warnings in the full report

2021 Mazda CX-3 Reliability Analysis

Specs

Vehicle Specs

Fuel Type: Regular
Seating Capacity: 5
Transmission: Automatic
Drivetrain: 4-Wheel Drive
Body Style: Hatchback
EPA Combined MPG: 29

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Most Common Issues

1. Rearview Camera Malfunction

Most reported

Usage data observed

See all common issues in the maintenance guide

First Service Interval

- Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation - Inspect Brakes

Est. shop cost: $75 - $125

7,500 mi

Unlock the full maintenance guide for every scheduled service interval and cost forecast.

Full pre-purchase inspection checklist

Complete maintenance schedule (5 service intervals)

Repair forecasts with mileage and cost context

Full buyer-fit guidance and who should avoid it

Full specs and trim-level context

1 recall campaign details & remedy notes

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FAQ

Is the 2021 Mazda CX-3 reliable?

The CarFocal Reliability Score for the 2021 Mazda CX-3 is 8.7/10. Reliability score is 8.7/10. NHTSA recalls: 1. Owner complaints: 0.

How practical is the 2021 Mazda CX-3 for daily use?

Practicality score is 5.2/10. EPA combined economy is 29 MPG. Seating capacity is 5.

What is the overall score for the 2021 Mazda CX-3?

The CarFocal Overall Score for the 2021 Mazda CX-3 is 8.3/10. Overall score is 8.3/10 (Strong). Confidence 85%. Maintenance 9.5/10. Practicality 5.2/10.

What does it cost to own and maintain a 2021 Mazda CX-3?

Based on Carfocal's data, First listed service: - Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation - Inspect Brakes at 7,500 miles. Estimated first-year maintenance: $300 - $500. Repair prediction highlight: Rearview Camera System (typical at 30,000 miles, estimated cost Min: $200 • Max: $500).

What engine is in the 2021 Mazda CX-3?

Engine specs list 4 • 2.0.

What transmission does the 2021 Mazda CX-3 use?

According to CarFocal's specs for the 2021 Mazda CX-3, transmission is Automatic. The paired drivetrain is 4-Wheel Drive.

What is the combined EPA MPG for the 2021 Mazda CX-3?

EPA combined estimate is 29 MPG.

What driver assistance and safety features are available on the 2021 Mazda CX-3?

14 standard driver assistance features. Key features include Anti-lock Braking System, Electronic Stability Control, Traction Control.

How many people fit in a 2021 Mazda CX-3?

According to CarFocal's specs for the 2021 Mazda CX-3, seating capacity is 5.

What body style is the 2021 Mazda CX-3?

According to CarFocal's specs for the 2021 Mazda CX-3, body style is hatchback.

What drivetrain does the 2021 Mazda CX-3 use?

According to CarFocal's specs for the 2021 Mazda CX-3, drivetrain is 4-Wheel Drive. Transmission is Automatic.

What are the NHTSA safety ratings for the 2021 Mazda CX-3?

NHTSA ratings: Overall 5/5 • Frontal 5/5 • Side 5/5 • Rollover 4/5.

Are there open safety recalls on the 2021 Mazda CX-3?

This model year has 1 official safety campaigns listed.