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2020 MAZDA MAZDA3
2.0L I4•FWD•AUTOMATIC•gas
2 active safety recalls on this vehicle — view recalls
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Repairs0Labor492Torque3127Fluid7DTC1132Battery1Maintenance0Recalls2
C0445high severityChassis

Pedestrian Detection System Fault

on 2020 Mazda Mazda3 2.0L I4 · FWD

What this code means

Malfunction in the pedestrian detection subsystem of the collision avoidance suite.

Symptoms

  • Pedestrian detection warning
  • AEB for pedestrians disabled
  • Forward camera or radar issue
  • Driver assist reduced message

Common causes

  • Camera cannot distinguish pedestrian shapes
  • Radar calibration preventing pedestrian classification
  • Sensor fusion mismatch
  • Software algorithm error

Diagnostic steps

  1. Check forward camera operation
  2. Verify radar module function
  3. Test in area with pedestrians at low speed
  4. Check for software updates
  5. Perform sensor calibration

Repair notes

Calibrate sensors. Update software if available. Replace faulty camera or radar module.

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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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