Independent · Not affiliated with NHTSA or any automaker MethodologyData sourcesData refreshed Oct 6, 2026

2020 Mazda Mazda3: Problems, Recalls and MPG

What this means

NHTSA lists 2 recall campaigns for the 2020 Mazda Mazda3, most recently filed June 2020. Owners have filed 32 complaints with NHTSA, most often about the forward collision avoidance. In NHTSA crash tests it earned 5 stars overall.

Data summary generated from official records. Methodology Data: NHTSA, DOT, EPA · Refreshed Oct 6, 2026
Caution Fewer than 50 complaints filed. With this few reports, patterns may not be meaningful.
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Recalls (2)

NHTSA lists 2 recall campaigns for the 2020 Mazda Mazda3. Check whether yours was repaired with NHTSA's free VIN lookup ↗

Only NHTSA and your automaker know whether your specific car was repaired. PlainVIN shows every recall campaign listed for a model year, with the official text and how many cars have been fixed so far.

Check on NHTSA ↗
Listed for 2020 Mazda Mazda3. Not checked against your VIN.
Recall 20V346000 Filed Jun 12, 2020

Front Brake Caliper Bolts May Loosen and Fall Off

Service brakes, hydraulic · foundation components · disc · caliper
Official NHTSA text
Summary
Mazda North American Operations (Mazda) is recalling certain 2020 CX-30 and Mazda3 vehicles. The front brake caliper mounting bolts may not have been tightened properly during assembly, possibly allowing the calipers to loosen.
Consequence
Loose brake calipers can reduce braking performance or interfere with wheel rotation, affecting vehicle handling. Either of these scenarios can increase the risk of a crash.
Remedy
Mazda will notify owners, and dealers will inspect the front brake caliper bolts, tightening them as necessary. If bolts are missing, the affected brake caliper will be replaced. Repairs will be performed free of charge. The recall began July 24, 2020. Owners may contact Mazda customer service at 1-800-222-5500, Option 4. Mazda's number for this recall is 4420F.
98.5% repairedof 24,037 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA or ask a dealer to check campaign 20V346000
Listed for 2020 Mazda Mazda3. Not checked against your VIN.
Recall 19V907000 Filed Dec 19, 2019

Emergency Braking Can Activate Unexpectedly

Forward collision avoidance · automatic emergency braking
Official NHTSA text
Summary
Mazda North American Operations (Mazda) is recalling certain 2019-2020 Mazda3 vehicles. The Smart Brake System (SBS) can falsely detect an obstacle while driving, activating the automatic emergency braking system and suddenly stopping the vehicle.
Consequence
Stopping the vehicle unexpectedly increases the risk of a crash.
Remedy
Mazda will notify owners, and dealers will update the SBS software. In addition, vehicles with certain production dates will receive an instrument cluster software update or replacement and a replacement owner's manual. These repairs will be performed free of charge. The recall began February 14, 2020. Owners may contact Mazda customer service at 1-800-222-5500, Option 4. Mazda's number for this recall is 4219L.
94.5% repairedof 35,390 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA or ask a dealer to check campaign 19V907000

PlainVIN shows public government records for education. It isn't a vehicle inspection or legal advice. Check your own VIN with NHTSA or your dealer.

Owner complaints (32)

32 complaints filed with NHTSA (owner reports, not verified findings). The forward collision avoidance is mentioned most often.

0involved a crash
0involved a fire
0injuries reported
0deaths reported

As reported by owners in their complaints. These are reports, not NHTSA findings.

Most-reported components

Complaints filed with NHTSA for the 2020 Mazda Mazda3, by component (top 10). One complaint can list several components, so these add up to more than 32.Source: NHTSA ODI owner complaints · Retrieved Oct 6, 2026 · Report a data error

How 2020 compares with other Mazda3 years

Best and worst Mazda3 years →
2016201720182019202020212022202320242025
This year (2020)Other yearsStill collecting reports

Counts are owner reports, not failure rates. Higher sales years tend to draw more reports. Owners are still filing reports for recent model years, so these counts will grow. Source: NHTSA ODI, retrieved Oct 6, 2026.

Crash tests: 5 stars overall

Overall★★★★★
Frontal crashDriver 5★ · Passenger 5★★★★★★
Side crashDriver 5★ · Passenger 5★★★★★★
Side pole★★★★★
RolloverRollover risk 10.1%★★★★★
Front seat of a modern car with the seat belt buckled across the passenger seat
Compare fairly. Compare stars only between vehicles of similar size and weight. Ratings apply to the tested configuration.

Source: NHTSA 5-Star Safety Ratings (NCAP), 2020 Mazda Mazda3 4 dr fwd, retrieved Oct 6, 2026.

Used blue SUV on a sunny dealer lot with its hood open and a clipboard on the fender

Looking at a 2020 Mazda3 for sale?

Print a one-page buyer's checklist: each recall campaign with a box to tick when the seller shows proof of repair, the top complaint areas to inspect, crash stars, MPG, and a link back to this page.

All Mazda3 years

Where to next

2020 Mazda Mazda3 FAQ

How many recalls does the 2020 Mazda Mazda3 have?

NHTSA lists 2 recall campaigns: 20V346000 (brake), 19V907000 (forward collision avoidance). Use NHTSA's VIN lookup to see whether a specific car was repaired.

What are the most common 2020 Mazda Mazda3 problems?

Owners filed 32 complaints with NHTSA. Forward collision avoidance (15), Electrical system (3), Service brakes (3) are mentioned most. These are owner reports, not verified findings.

What safety rating did the 2020 Mazda Mazda3 get?

NHTSA rated the 2020 Mazda Mazda3 4 dr fwd 5 stars overall, with 5 stars frontal, 5 stars side and 5 stars rollover (10.1% rollover risk).

How does the 2020 Mazda3 compare with other years?

Among the 2016–2021 Mazda Mazda3 model years at least five years old, the 2020 drew the fewest complaints (32) and the 2018 the most (108). The 2020 drew 32. Counts are owner reports, not failure rates.

How this page was madeSources, processing, limits, review and changes

Processing

  • Complaints are counted per component. One complaint can list several, so component totals add up to more than the total.
  • Fuel cost = miles per year ÷ EPA combined mpg × EIA weekly price for your region.

Limitations

  • Complaint counts are owner reports, not verified findings or failure rates. There is no sales denominator.
  • Recall campaigns are listed for the model year. Only NHTSA and the automaker know whether a specific car was repaired.
  • Recent model years are still collecting reports.

Review

Data compiled automatically from the official files listed here.

Changelog

  • 2026-10-06 Data refreshed from the official files.
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