Most-reported problems

Across 32 owner complaints filed on the 2020 Mazda Mazda3

• Forward Collision Avoidance47%
• Electrical System9%
• Service Brakes9%
• Steering9%
• Unknown or Other9%
• Fuel/propulsion System6%

Share of complaints naming each system — a signal of what owners report most on this model, not a failure rate. The denominator is people who filed a complaint, not every owner. Complaints are filed with the US regulator; the same models are sold in Canada.

Safety recalls

2 campaigns issued by the manufacturer

• Forward Collision Avoidance · Automatic Emergency Braking

  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.

  Campaign 19V907000

• Service Brakes, Hydraulic · Foundation Components · Disc · Caliper

  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.

  Campaign 20V346000

Recall campaigns are manufacturer-issued and fixed free of charge. This is the US campaign set matched by year, make and model — it is not a check against a specific VIN, and Canadian campaigns may differ.