IDB_a030_fluidLeakDetected
Power braking assist reduced
What does the IDB_a030_fluidLeakDetected alert mean?
The Integrated Dynamic Brake (IDB) has detected a hydraulic brake fluid leak.
What you'll see in your Tesla
- Power braking assist reduced
- Braking may require increased effort
What triggers it
The IDB detects an internal or external hydraulic brake fluid leak or detects air in the hydraulic system.
When it clears
External leaks are no longer detected during operation, or internal leaks are no longer detected during the next hydraulic testing phase on startup or shutdown. The brakes may require bleeding. If the condition persists, the IDB module, brake lines, jounce hoses, or brake calipers may require repair or replacement.
Potential impact
Only Electronic Brake Distribution (EBD) may be available. In the event of a primary chamber internal leakage or leakage on both external circuits, the IDB may enter fallback mode and relinquish 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.