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2021 BMW I3
Range Extender•RWD•AUTOMATIC•hybrid
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Repairs0Labor318Torque3717Fluid6DTC2228Battery1Maintenance0Recalls0
CC-ID-171high severityPowertrain

Transmission Failsafe Active

on 2021 BMW i3 Range Extender · RWD

What this code means

The transmission has entered failsafe (limp) mode to protect itself. This message is raised by the transmission control module.

Symptoms

  • Limited gear availability
  • Fixed or limited gear operation
  • Warning message on dashboard

Common causes

  • Detected transmission fault
  • Overheating transmission fluid
  • Faulty solenoid or sensor
  • Electrical/communication fault

Diagnostic steps

  1. Scan TCM for fault codes
  2. Check transmission fluid level and temperature
  3. Test solenoids and sensors
  4. Inspect wiring and communication
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Other Powertrain codes on this vehicle

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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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