IDB_a035_motorStuck
Power braking assist reduced
What does the IDB_a035_motorStuck alert mean?
The Integrated Dynamic Brake (IDB) pump motor is stuck.
What you'll see in your Tesla
- Power braking assist reduced
- Braking may require increased effort
What triggers it
The measured motor rotor position is not changing in response to applied currents, or measured brake pressure does not follow the target pressure.
When it clears
The motor position origin and pump piston housing walls are set normally at the start of the next power cycle. If the condition persists, the IDB module may require replacement.
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
Track your Tesla's alerts automatically
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.