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2021 BMW I3
Range Extender•RWD•AUTOMATIC•hybrid
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Repairs0Labor318Torque3717Fluid6DTC2228Battery1Maintenance0Recalls0
CC-ID-390moderate severityBody

Fasten passenger's seat belt

on 2021 BMW i3 Range Extender · RWD

What this code means

The passenger's seat belt is unbuckled while the seat is occupied and the vehicle is in operation. Raised by the restraint control module using buckle and occupancy sensors.

Symptoms

  • Passenger belt warning
  • Reminder chime sounds
  • Dash message displayed

Common causes

  • Passenger belt unbuckled
  • Faulty buckle switch
  • Seat occupancy sensor fault
  • Wiring fault to sensor

Diagnostic steps

  1. Verify passenger belt is buckled
  2. Test buckle switch
  3. Check seat occupancy sensor
  4. Scan restraint module for codes
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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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