2020 Mazda MAZDA3

Problems, recalls and owner-reported issues

Forward collision avoidance is the leading concern among 32 owner complaints filed for this model year. This is the 18th highest complaint count among 22 MAZDA3 model years with reports.

Complaints by model year
  1. 32
Primary concernForward collision avoidance15 reports · 47% of complaints
Owner complaints32Filed with NHTSA
Recall relationship2 safety recallsNHTSA campaign records

What owners report most often

  1. Forward collision avoidance15
  2. Electrical system3
  3. Service brakes3
  4. Steering3
  5. Other or unspecified3
  6. Fuel/propulsion system2
  7. Lane departure2
  8. Suspension2

Recalls and investigations

  1. Service brakes, hydraulic, foundation components, disc, caliperJun 12, 2020

    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.

    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.

    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.

    Campaign 20V346000 on NHTSA.gov

  2. Forward collision avoidance, automatic emergency brakingDec 19, 2019

    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.

    Stopping the vehicle unexpectedly increases the risk of a crash.

    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.

    Campaign 19V907000 on NHTSA.gov

Representative owner complaints: service brakes

3 reports, newest first. Show all

  1. Service brakes, Forward collision avoidance, Aug 18, 2023

    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 have it fixed, and on the drive home, it did it again. There is a recall for similar makes and models for this year, but my car has not been included.

  2. Service brakes, Hydraulic, Sep 9, 2021

    The contact owns a 2020 Mazda Mazda3. The contact stated while driving 35 MPH, the ABS warning light illuminated, and the brakes locked up and caused the vehicle to stall. The contact was able to restart the vehicle however, the failure persisted. The contact had taken the vehicle to a local dealer to be diagnosed however, the dealer was not able to duplicate the failure. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 2,000.

  3. Service brakes, Forward collision avoidance, Mar 13, 2021

    I WAS DRIVING MY VEHICLE STRAIGHT AHEAD ON A TWO-WAY CITY STREET WITH NO OTHER VEHICLES IN FRONT OR ON MY SIDES. I WAS TRAVELING AT A SPEED OF 40 MPH. THE TWO-WAY STREET IS SEPARATED BY A CONCRETE DIVIDER AND TROLLY TRACKS. A "BRAKE!" ALERT APPEARED ON THE DISPLAY SCREEN FOLLOWED BY BEEPS. SUDDENLY THE BRAKES WERE ENGAGED BRINGING THE VEHICLE TO A COMPLETE STOP CAUSING THE VEHICLE BEHIND TO COME TO A SCREECHING HALT. IN A FEW SECONDS I WAS ABLE TO DRIVE OFF.