IDB_a055 — Panic Brake Assist Faulted
Full alert identifier: IDB_a055_panicBrakeAssistFaulted
Alert description
PBA may be unavailable.
Potential impact
The IDB may not increase brake torque above the current request in response to fast brake pedal inputs. The brake pedal must be pressed firmly and continuously to stop during emergency braking. The vehicle should be driven with extreme caution.
Set condition
The IDB detects a condition that precludes panic brake assist function. This alert may be accompanied by causal hardware alerts (for example, MicroController Unit [MCU], ASIC, solenoid valve, pump, wheel speed sensor, hydraulics) or signal alerts (Intertial Measurement Unit [IMU] measurement).
Clear condition
Clears when the Integrated Dynamic Brake (IDB) detects that any conditions precluding panic brake assist function are no longer present while the vehicle is parked.
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of IDB_a055.