VCLEFT1 family
VCLEFT1_a225_epbActiveDecel
Vehicle is applying brakes
What does the VCLEFT1_a225_epbActiveDecel alert mean?
Stability Control has begun Controlled Deceleration for Parking Brake
What you'll see in your Tesla
- Vehicle is applying brakes
- PULL OVER SAFELY
What triggers it
ESM_state == ESM_DYNAMIC_EXTERNAL
When it clears
ESM_state != ESM_DYNAMIC_EXTERNAL
Potential impact
Stability Control is actuating, Electronic Parking Brake may be idle faulted
Affected models
Cybertruck
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.