Alerts
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| Signal Name | Description | Condition | Impact | Important |
|---|---|---|---|---|
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Rear door failed to open due to latch failing to release
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Latch state transitioned from opening to closed
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Door will not open
|
No
|
|
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The radiator fan brushless motor controller reports a condition affecting its operation.
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The radiator fan motor controller reports a condition affecting the radiator fan operation.
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The radiator fan will not be able to run.
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No
|
|
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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
|
No
|
|
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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
|
No
|
|
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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
|
No
|
|
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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
|
No
|
|
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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
|
No
|
|
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Stability Control reports Controlled Deceleration for Parking Brake is not available when car is in DRIVE
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(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
|
|
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The low voltage (LV) bus and LV battery are not adequately supported by the power conversion system (PCS).
|
There is 0.5V or greater difference between the PCS voltage and the LV battery voltage.
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The low voltage electrical system cannot continue to power all vehicle features when the LV bus is not adequately supported. It may be necessary to shed some vehicle electrical loads by cutting power to less essential electronic control units (ECUs), and another alert will be present to indicate that condition. Vehicle may be unable to drive or continue driving, with another alert present to indicate that condition.
|
No
|
|
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Electronic Parking Brake Monitor measured less current than is required for Electronic Parking Brake to transition to PARK.
|
Electronic Parking Brake attempted to transition to PARK while Electronic Parking Brake Monitor had yet to measure the minumum current required to allow the transition.
|
The caliper may not have the expected holding force.
|
No
|
|
|
HSD for seat heater has shorted
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HSD for front seat heater trips
|
seat heater isn't functional
|
No
|
|
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Electronic Parking Brake apply failed.
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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
|
|
|
Electronic Parking Brake apply was interrupted. Apply will be retried.
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(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 release was interrupted. Release will be retried.
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(unitFaultStatus == FAULT_STATUS_RETRY) && (csmRequest == release)
|
Electronic Parking Brake did not release, it will retry a release and enter fault if retry fails
|
No
|
|
|
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
|
Problem with initializing Electronic Parking Brake
|
No
|
|
|
The battery voltage measurement, nominally 12 volts, was lower than expected.
|
The vbat voltage measurement, is lower than 6.0 volts. If the measurement is lower than 0.25 volts, we do not set this alert, as this would indicated the switch supply is disabled.
|
12V Battery or low voltage systems may be damaged
|
No
|
|
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The communication link between Electronic Parking Brake (EPB) and Electronic Parking Brake Monitor (EPBM) is not functioning as expected.
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Either the Cyclic Redundancy Check (CRC) check has not completed as expected, or a message has not been received for 100ms. Alert disabled during over-the-air (OTA) firmware updates.
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Electronic Parking Brake will not apply or release.
|
No
|
|
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The door latch had to be rehomed because of an unexpected movement in the latch's release motor.
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The latch is not performing a release but the home switch on the release actuator is deactivated.
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Until this alert clears, the door latch may spontaneously release.
|
No
|
|
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Electronic Parking Brake was unable to release due to fault.
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Electronic Parking Brake faulted during release && (nonterminal == FALSE)
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Electronic Parking Brake release in progress will be stopped due to the fault, caliper may not have fully released
|
No
|
|
|
The battery voltage measurement, nominally 12 volts, was higher than expected.
|
The vbat voltage measurement is higher than 18.5 volts.
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12V Battery or low voltage systems may be damaged
|
No
|