Alerts
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| Signal Name | Description | Condition | Impact |
|---|---|---|---|
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Brake Disc Wipe algorithm is not running due to loss of input signal(s)
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One or more of the BDW algorithms input signals is unavailable.
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BDW attempted while car not in drive or input signals are being delayed
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Stability Control has begun Controlled Deceleration for Parking Brake
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ESM_state == ESM_DYNAMIC_EXTERNAL
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Stability Control is actuating, Electronic Parking Brake may be idle faulted
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Electronic Parking Brake's learned configuration does not match the reported config from the gateway
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Electronic Parking Brake HW type does not match HW type reported by gateway and 5 seconds have passed since gateway booted up
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Hardware does not match current configuration, parking brake function may be degraded
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DI requested unpark but PM didn't allow it
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DI requests unpark and PM doesn't allow it within 40ms or is MIA
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Fault or error occurred on the DI
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If vehicle reaches 8.8kph, EPB will park
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Vehicle speed of 8.8kph in free roll Mode
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EPB is applied.
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Electronic Parking Brake apply was interrupted during dynamic apply. Apply will be retried.
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(unitFaultStatus == FAULT_STATUS_RETRY) && (stateRequest == ESM_DYNAMIC)
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Electronic Parking Brake did not apply, it will retry applying and enter fault if retry fails
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A request to change the HVC or Contactor power state has been denied.
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Electronic Parking Brake Right detects high voltage lockout request timed out after 0.5 seconds
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High Voltage control or contactor may be faulted
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A request to change the DI power state has been denied.
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Electronic Parking Brake Left detects drive inverter lockout request timed out after 0.5 seconds
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Drive inverter may be faulted
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The Electronic Parking Brake (EPB) reports the driver is leaving and parks the vehicle.
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The EPB attempted to park due to the driver being detected as leaving.
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The EPB will be applied.
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Electronic Parking Brake was unable to release fully.
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Electronic Parking Brake faulted during release && (nonterminal == TRUE)
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Electronic Parking Brake may not be released, and caliper may be obstructed
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Electronic Parking Brake apply failed.
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Electronic Parking Brake faulted during apply && (nonterminal == TRUE) && (stateRequest != ESM_DYNAMIC)
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Electronic Parking Brake may not be applied, and caliper may be obstructed
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Electronic Parking Brake was attempting to dynamic park, Controlled Deceleration for Parking Brake is unavailable, and speed crossed above 8.8kph
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EPB_unitStatus == EPB_STATUS_DYNAMIC_PARKING, and speed crosses above 8.8kph or acceleration is above 5mph/s
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Car interrupted parking due to travelling at speed, Electronic Parking Brake not applied
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Electronic Parking Brake is performing dynamic apply
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ESM_stateRequest == ESM_DYNAMIC
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Unable to perform Controlled Deceleration for Parking Brake due to Stability Control failing or unavailable
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Stability Control has begun Controlled Deceleration for Parking Brake
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ESM_state == ESM_DYNAMIC_EXTERNAL
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Stability Control is actuating, Electronic Parking Brake may be idle faulted
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Non-nominal termination of dynamic park
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ESM_stateRequest transitions from ESM_DYNAMIC_PARK to any other state, while qualified speed > 0.8kph
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Electronic Parking Brake not applied, car may be free rolling, Stability Control may have failed or is unavailable
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One Electronic Parking Brake (EPB) not applied, and road grade is too steep to secure vehicle with only one EPB
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Only one Electronic Parking Brake (EPB) applied and grade too steep for one EPB to hold the vehicle
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Car may not be secured by Electronic Parking Brake on current road grade, may be free rolling
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Road grade is too steep to secure with Park Brake
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Attempt to engage parking brake when the vehicle is stopped on too steep a road grade for Electronic Parking Brake to secure the vehicle
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Car may not be secured by Electronic Parking Brake on the current road grade, may be free rolling
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Customer facing alert issued when Electronic Parking Brake is applied at higher than 5mph
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Entry to states ESM_DYNAMIC, ESM_DYNAMIC_EXTERNAL, ESM_DYNAMIC_PENDING
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User facing notification that informs Electronic Parking Brake is dynamically applying
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Electronic Parking Brake was not able to determine caliper state on boot.
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Caliper state saved is unknown, corrupted, or mismatches Electronic Parking Brake Monitor
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Problem with initializing Electronic Parking Brake
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Electronic Parking Brake apply was interrupted. Apply will be retried.
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(unitFaultStatus == FAULT_STATUS_RETRY) && (csmRequest == apply) && (stateRequest != ESM_DYNAMIC)
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Electronic Parking Brake did not apply, it will retry an apply and enter fault if retry fails
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