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2010 TOYOTA COROLLA
2.4L I4•FWD•gas•2AZ-FE
17 active safety recalls on this vehicle — view recalls
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Repairs0Labor514Torque139Fluid8DTC1159Battery1Maintenance0Recalls17
B2403moderate severityBody

Blind Spot Monitor Calibration Required

on 2010 Toyota Corolla 2.4L I4 · FWD

What this code means

The blind spot monitoring system requires recalibration after sensor replacement or rear body repair.

Symptoms

  • BSM system not functioning after repair
  • Sensors not detecting vehicles
  • False alerts or missed detections
  • Calibration warning message

Common causes

  • Sensor replaced without calibration
  • Rear bumper repair altered sensor alignment
  • Rear collision shifted sensor mounting
  • Sensor firmware update needed

Diagnostic steps

  1. Verify sensor mounting alignment
  2. Perform BSM sensor calibration
  3. Check for rear body damage affecting sensor angle
  4. Use manufacturer calibration procedure
  5. Test system with dynamic road test

Repair notes

Perform blind spot monitor calibration per manufacturer procedure.

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