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2020 Mazda Mazda3
Solid pick — the complaint record is strong for its age. It does carry safety recalls, so confirm every one shows "remedy completed" on the VIN before money changes hands.
32 owner complaints · 2 recalls · data verified July 10, 2026 · source: NHTSA
Why buy?
Driver assistance problems dominate (47% of complaints).
Very few owner complaints for its age and sales volume.
Complaints are overwhelmingly minor — almost none involve crashes, fires, or injuries.
The math, shown
Full methodology →Complaints filed per year
Fading = early teething worked out. Climbing = problems aging in.
The road ahead
What breaks on a 2020 Mazda Mazda3, plotted where owners report it happening.
Also reported (mileage varies): Driver assistance (15)
Mileage medians come from owners who mentioned an odometer reading in their NHTSA complaint — a rough guide, not a schedule.
Driver assistance
47%15 complaints
“My car's automatic emergency brake is deploying without warning, during driving, when there are no other cars in my forward proximity. I took it to the dealership to h…”
Steering
9%3 complaints · 1 in the last 2 years
“TSB 02-003/24 Car front suspension bolts corroded and making metal on metal sounds during turning and braking”
Electrical system
9%3 complaints
“Automatic safety notification censoring system for the brakes engaged when a stop was not applicable or necessary causing the car to brake on its own in traffic. Lucki…”
Brakes
9%3 complaints
“My car's automatic emergency brake is deploying without warning, during driving, when there are no other cars in my forward proximity. I took it to the dealership to h…”
Recalls (2)
Safety recall repairs are free at the brand’s franchised dealers. Before buying, run the VIN at nhtsa.gov/recalls and make the seller show the work was done.
Service Brakes, Hydraulic · 20V346000
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.
Risk: 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.
Fix: 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.
Forward Collision Avoidance · 19V907000
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.
Risk: Stopping the vehicle unexpectedly increases the risk of a crash.
Fix: 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.
Before you hand over money
Verify the recall work was done
NHTSA’s free lookup shows whether this exact car had its recall remedies completed.
Free NHTSA VIN check ↗Get a pre-purchase inspection
A $150–$250 independent inspection of this exact 2020 Mazda MAZDA3 beats every score on the internet, including ours.
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What owners say
Real owners of this exact model-year, shown separately from the NHTSA score — if they disagree, that’s worth knowing.