IDB_a033_motorHardOverheat
Power braking assist reduced
What does the IDB_a033_motorHardOverheat alert mean?
The Integrated Dynamic Brake (IDB) motor coil has overheated.
What you'll see in your Tesla
- Power braking assist reduced
- Braking may require increased effort
What triggers it
The IDB motor coil temperature is greater than 200 degrees Celsius.
When it clears
The IDB motor coil temperature is less than 125 degrees Celsius.
Potential impact
Only Electronic Brake Distribution (EBD) may be available. The IDB enters fallback mode and relinquishes controlling status to the Redundant Control Unit (RCU). The RCU may assume controlling status and perform backup brake boost, but Anti-lock Brake System (ABS), Brake Traction Control (BTC), Vehicle Dynamics Control (VDC), Panic Brake Assist (PBA), Hydraulic Fade Compenration (HFC), Controlled Deceleration via Parking brake (CDP), Brake Disc Wipe (BDW), External Brake Request (EBR), and Secondary Collision Mitigation (SCM) may be unavailable. Increased braking effort may be necessary to achieve desired deceleration. The vehicle should be driven with extreme caution.
Affected models
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Alerts like this reach MyTeslaMate through your car's Tesla telemetry API. MyTeslaMate logs every alert your Tesla reports and turns it into readable history and real-time notifications — hosted TeslaMate with no server to run.