Alerts

Alerts

Signal Name Description Condition Impact Important
The Electronic Parking Brake (EPB) reports the driver is leaving and parks the vehicle.
The EPB attempted to park due to the driver being detected as leaving.
The EPB will be applied.
No
Electronic Parking Brake apply failed.
Electronic Parking Brake faulted during apply && (nonterminal == TRUE) && (stateRequest != ESM_DYNAMIC)
Electronic Parking Brake may not be applied, and caliper may be obstructed
No
Hardware loadshed protection is initiated on the Vehicle Controller Left (VCLEFT). Non-critical loads are expected to be unavailable until the protection clears.
The 16V bus reports an undervoltage or overcurrent condition on VCLEFT while the vehicle is in Drive.
Non-critical loads unavailable in Drive.
No
The Left Vehicle Controller (VCLEFT) precharge circuit did not raise the voltage to the target voltage in the expected amount of time.
The load voltage does not meet the power source voltage in the expected amount of time.
The load being precharged may not turn on. Vehicle functions relying on the load being precharged may not operate as expected.
No
Front door failed to open due to latch failing to release
Latch state transitioned from opening to closed
Door will not open
No
Stability Control has begun Controlled Deceleration for Parking Brake
ESM_state == ESM_DYNAMIC_EXTERNAL
Stability Control is actuating, Electronic Parking Brake may be idle faulted
No
Rear door failed to open due to latch failing to release
Latch state transitioned from opening to closed
Door will not open
No
Non-nominal termination of dynamic park
ESM_stateRequest transitions from ESM_DYNAMIC_PARK to any other state, while qualified speed > 0.8kph
Electronic Parking Brake not applied, car may be free rolling, Stability Control may have failed or is unavailable
No
Road grade is too steep to secure with Park Brake
Attempt to engage parking brake when the vehicle is stopped on too steep a road grade for Electronic Parking Brake to secure the vehicle
Car may not be secured by Electronic Parking Brake on the current road grade, may be free rolling
No
One Electronic Parking Brake (EPB) not applied, and road grade is too steep to secure vehicle with only one EPB
Only one Electronic Parking Brake (EPB) applied and grade too steep for one EPB to hold the vehicle
Car may not be secured by Electronic Parking Brake on current road grade, may be free rolling
No
Stability Control reports Controlled Deceleration for Parking Brake is not available when car is in DRIVE
(ESP_cdpStatus == CDP_IS_NOT_AVAILABLE or VCLEFT/VCRIGHT_okayToRequestCDP == EPB_EXTERNAL_APPLY_INVALID) when VCFRONT_vehiclePowerState == VEHICLE_POWER_STATE_DRIVE
Electronic Parking Brake Monitor and/or Stability Control are faulted, Controlled Deceleration for Parking Brake cannot be performed
No
Electronic Parking Brake is performing dynamic apply
ESM_stateRequest == ESM_DYNAMIC
Unable to perform Controlled Deceleration for Parking Brake due to Stability Control failing or unavailable
No
Customer facing alert issued when Electronic Parking Brake is applied at higher than 5mph
Entry to states ESM_DYNAMIC, ESM_DYNAMIC_EXTERNAL, ESM_DYNAMIC_PENDING
User facing notification that informs Electronic Parking Brake is dynamically applying
No
The door latch had to be rehomed because of an unexpected movement in the latch's release motor.
The latch is not performing a release but the home switch on the release actuator is deactivated.
Until this alert clears, the door latch may spontaneously release.
No
The door latch had to be rehomed because of an unexpected movement in the latch's release motor.
The latch is not performing a release but the home switch on the release actuator is deactivated.
Until this alert clears, the door latch may spontaneously release.
No
Electronic Parking Brake apply was interrupted. Apply will be retried.
(unitFaultStatus == FAULT_STATUS_RETRY) && (csmRequest == apply) && (stateRequest != ESM_DYNAMIC)
Electronic Parking Brake did not apply, it will retry an apply and enter fault if retry fails
No
Electronic Parking Brake was not able to determine caliper state on boot.
Caliper state saved is unknown, corrupted, or mismatches Electronic Parking Brake Monitor
Problem with initializing Electronic Parking Brake
No
Electronic Parking Brake apply failed.
Electronic Parking Brake faulted during apply && (nonterminal == FALSE)
Electronic Parking Brake apply in progress will be stopped due to the fault, caliper may not be fully applied
No
The mechanical release was used to open the door.
The mechanical release was used to open the door.
Possible damage to window trim.
No
Front door latch release cam cannot find home position
Door latch actuator was resetting the release cam to its home position and timed out
Door may not be able to close
No