IDB family
IDB_a048_scmActive
Collision detected
What does the IDB_a048_scmActive alert mean?
Secondary Collision Mitigation (SCM) is active.
What you'll see in your Tesla
- Collision detected
- Brakes applied and acceleration disabled
What triggers it
The IDB has activated SCM after a collision has been detected by the Restraint Control Module (RCM).
When it clears
The Integrated Dynamic Brake (IDB) is no longer generating brake pressure for SCM.
Potential impact
The IDB is generating brake pressure in order to bring the vehicle to standstill.
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.