Alerts
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| Signal Name | Description | Condition | Impact |
|---|---|---|---|
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The battery management system (BMS) has detected that the power supply to the contactors was interrupted.
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The BMS detects that the power supply to the contactors was interrupted, and the service disconnect of the high voltage battery was removed.
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Inability to charge, drive, or support the low voltage (LV) system
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The Battery Management System (BMS) has stopped charging because the max brick voltage within the high voltage (HV) battery exceeds the max brick voltage target value, or the charge current exceeds the target value for too long.
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While charging is active, the maximum brick voltage exceeds the target value for too long or the charge current exceeds the target value for too long.
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Charging is temporarily unavailable.
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The battery management system (BMS) has detected an issue with the charger.
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The BMS detects an issue with the charger. Alert log signal data provides information on the specific condition(s) detected.
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Inability to charge.
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The battery management system (BMS) detected abnormal HV bus behavior during precharge.
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The BMS detects abnormal HV bus behavior during precharge.
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Inability to charge, drive, or support the low voltage (LV) system
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The battery management system (BMS) cannot transition into the requested state because of a blocking condition.
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A blocking condition does not allow the BMS to transition into the requested state.
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Inability to charge, drive, or support the low voltage (LV) system
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The battery management system (BMS) detects a sudden loss of isolation while the vehicle is driving.
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DI_possibleLeak=1, and BMS_a035_SW_Isolation or BMS_a142_SW_Isolation_Degradatio is set, and the pack contains a non-hybrid pyro fuse type.
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The pack contactors cannot close and the vehicle will not drive.
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The BMS detects that the state of charge (SOC) of the high voltage (HV) battery is too low to support driving.
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The BMS detects that the SOC is below the threshold to support driving.
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The vehicle begins end-of-drive ramp down.
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The battery management system (BMS) does not have enough power to provide low voltage (LV) support.
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The BMS detects that the high voltage (HV) state of charge (SOC) is too low to support the LV system.
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Inability to charge, drive, or support the low voltage (LV) system
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The battery management system (BMS) has restricted the power outlet to the high voltage (HV) battery to thermally protect the battery cells due to lack of coolant flow.
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The BMS detects that there is a lack of coolant flow in the battery pack.
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Power is reduced.
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The battery management system (BMS) has detected that one brick has lower calculated amp-hour capacity (CAC) than the rest of the bricks.
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The BMS detects that the brick CAC is below acceptable operational capacity.
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Inability to charge, drive, or support the low voltage (LV) system
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The battery management system (BMS) has detected there is a brick voltage imbalance.
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The BMS has detected that the difference between the maximum brick voltage and the minimum brick voltage in the high voltage (HV) pack is greater than expected.
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Power is reduced.
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The battery management system (BMS) has detected an issue during the precharge process, and the pack contactors were unable to close.
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The BMS detects an issue during the precharge process. Alert log signal data provides information on the specific condition(s) detected.
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Inability to charge, drive, or support the low voltage (LV) system
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The battery management system (BMS) has detected that a pack contactor is not getting enough power.
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The BMS detects that a pack contactor input voltage dropped below the limit threshold.
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Inability to charge, drive, or support the low voltage (LV) system
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The vehicle is not configured for DC fast charging.
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The battery management system (BMS) detects that the vehicle is not configured for DC fast charging.
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Inability to DC fast charge
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A battery management board (BMB) has detected an over temperature condition in a battery module.
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A module thermistor has reported a higher temperature than expected.
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Inability to charge, drive, or support the low voltage (LV) system
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The battery management system (BMS) has detected that a brick is reporting a voltage below the minimum acceptable cell voltage.
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A brick reports a voltage below the minimum acceptable cell voltage.
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Inability to charge, drive, or support the low voltage (LV) system
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The battery management system (BMS) has detected that a brick is reporting a voltage above the maximum acceptable cell voltage.
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A brick reports a voltage above the maximum acceptable cell voltage.
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Inability to charge, drive, or support the low voltage (LV) system
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The battery management system (BMS) detects a temperature imbalance between high voltage (HV) battery modules.
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The BMS detects a high temperature difference between the hottest and coldest modules, diverging temperatures while the vehicle is awake, or diverging temperatures while the vehicle is sleeping. Alert log signal data provides the temperatures that triggered the alert.
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Inability to charge, drive, or the support low voltage (LV) system
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The complex programmable logic device (CPLD) detects a condition where it cannot go to sleep but is told to do so. The CPLD cannot go to sleep when pack contactors are closed, the high voltage interlock loop (HVIL) is on, or there is a no-sleep condition.
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The CPLD bit HW_Sleep_Attempt is asserted.
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This alert is primarily informational and is used for logging purposes.
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The battery management system (BMS) detects that there are system faults and prevents the pack contactors from closing.
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The complex programmable logic device (CPLD) detects a condition that prevents pack contactors from closing. Alert log signal data provides information on the specific condition(s) detected
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Inability to charge, drive, or support the low voltage (LV) system
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