IDB family
IDB_a144_hydraulicPushthroughActive
Power braking assist reduced
What does the IDB_a144_hydraulicPushthroughActive alert mean?
Integrated Dynamic Brake (IDB) is in hydraulic push-through.
What you'll see in your Tesla
- Power braking assist reduced
- Braking may require increased effort
What triggers it
The IDB hydraulic pump is unable to generate brake pressure.
When it clears
The IDB hydraulic pump automatic self-tests pass, indicating the availability to generate brake pressure.
Potential impact
The IDB will not provide brake boost, and the driver must press the brake firmly to stop the vehicle. Antilock brake system (ABS), vehicle dynamics control (VDC), and traction control may be unavailable.
Affected models
Model Y 2025+
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.