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2021 BMW I3
Range Extender•RWD•AUTOMATIC•hybrid
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Repairs0Labor318Torque3717Fluid6DTC2228Battery1Maintenance0Recalls0
CC-ID-134high severityBody

Right Brake Light Failure

on 2021 BMW i3 Range Extender · RWD

What this code means

The right brake light is not operating when the brake pedal is pressed. This alert comes from the lighting control module monitoring the brake light circuit.

Symptoms

  • Brake light warning in cluster
  • Right brake light does not illuminate
  • Following drivers not warned when braking

Common causes

  • Blown brake light bulb
  • Faulty brake light switch
  • Corroded socket or connector
  • Wiring or ground fault

Diagnostic steps

  1. Have assistant press brake pedal and inspect light
  2. Replace brake light bulb if blown
  3. Check brake light switch operation
  4. Test circuit wiring and grounds
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