Alerts
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| Signal Name | Description | Condition | Impact | Important |
|---|---|---|---|---|
|
The battery management system (BMS) has detected that a brick's voltage slope is significantly less than average.
|
The BMS detects that brick voltage is staying constant even while pack current is rising or dropping.
|
Inability to charge, power is reduced, and regenerative breaking is reduced
|
No
|
|
|
The battery management system (BMS) has detected that the voltage of one or more of the stacks in the high voltage (HV) battery is too high.
|
The BMS detects that the voltage of a stack is above the maximum threshold.
|
Inability to charge
|
No
|
|
|
The battery management system (BMS) has detected a software overcurrent event.
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The high voltage (HV) battery pack current (discharge or charge) exceeded the maximum limit.
|
Inability to charge, drive, or support the low voltage (LV) system
|
No
|
|
|
The High Voltage (HV) battery drive limits have been exceeded by the system.
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The battery pack current exceeds the maximum allowed by the Battery Management System (BMS) while charging or discharging.
|
This alert is primarily informational and is used for logging purposes. No expected impact on vehicle functionality.
|
No
|
|
|
The battery management system (BMS) has detected that a brick has shown second order instability noise.
|
The BMS detects that brickV[n], when compared with avgModulebrickV, shows large differentials and noise.
|
This alert is primarily informational.
|
No
|
|
|
A battery management board (BMB) has detected an over temperature condition in a battery module.
|
A module thermistor has reported a higher temperature than expected.
|
Inability to charge, drive, or support the low voltage (LV) system
|
No
|
|
|
The battery management system (BMS) has detected that a brick has fallen below the minimum brick voltage.
|
The BMS detects that a brick fell below the minimum brick voltage.
|
Inability to charge, drive, or support the low voltage (LV) system
|
No
|
|
|
The battery management system (BMS) has detected that a brick has exceeded the maximum brick voltage.
|
The BMS detects that a brick exceeded the maximum brick voltage.
|
Inability to charge, drive, or support the low voltage (LV) system
|
No
|
|
|
The Battery Management System (BMS) is unable to read a pack birth date.
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The BMS is unable to read a pack birth date from the calibration block or derive one from the pack serial number on boot.
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If there is no histogram start time saved, histograms will not accumulate or save data without a valid pack birth date available.
|
No
|
|
|
High voltage isolation dropped under threshold in many drive sessions
|
Isolation or isolation degradation alert is set many times
|
Vehicle will be unable to restart
|
No
|
|
|
This alert is an early warning for a064 SOC Imbalance, which limits the battery's max SOC. It triggers with a lower threshold than SOC imbalance
|
The estimated imbalance between average SOC and min SOC > SOC_IMBALANCE_WARNING_SET_THRESHOLD
|
Indication that brick imbalance is increasing and may result in a064, which limits max charge
|
No
|
|
|
The BMS has detected high discharge current during DC charge session
|
The discharge current is above an acceptable threshold while DC charging is enabled
|
The vehicle will not charge until the charge cable is removed and the alert is cleared
|
No
|
|
|
The difference between max brick voltage and min brick voltage is greater than the allowed threshold
|
The difference between max brick voltage and min brick voltage is above the brickV imbalance set threshold
|
Vehicle drive performance is degraded and vehicle will not charge
|
No
|
|
|
High Voltage (HV) system bus voltage is too low.
|
BMS_packVoltage is less than (BMS_minBusVoltage - VOLTAGE_LIMIT_EXCEEDED_MARGIN) for BUS_VOLTAGE_LIMIT_EXCEEDED_QUALIFICATION_TIME.
|
No functional impact on vehicle operation.
|
No
|
|
|
A battery pack 2 brick voltage is above the fault voltage limit.
|
A battery pack 2 brick voltage is above the fault voltage limit for X duration (in seconds)
|
Power/drive limits may be reduced
|
No
|
|
|
A battery pack 1 brick voltage is above the fault voltage limit.
|
A battery pack 1 brick voltage is above the fault voltage limit for X duration (in seconds)
|
Power/drive limits may be reduced
|
No
|
|
|
A battery pack 3 brick voltage is above the warning voltage limit.
|
A battery pack 3 brick voltage is above the warning voltage limit for X duration (in seconds)
|
Power/drive limits may be reduced
|
No
|
|
|
A battery pack 1 brick voltage is below the over discharged voltage limit.
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A battery pack 1 brick voltage is below the over discharged voltage limit for X duration (in seconds)
|
Charge and drive may be blocked
|
No
|
|
|
A battery pack 2 brick voltage is below the over discharged voltage limit.
|
A battery pack 2 brick voltage is below the over discharged voltage limit for X duration (in seconds)
|
Charge and drive may be blocked
|
No
|
|
|
A battery pack 2 brick voltage is above the warning voltage limit.
|
A battery pack 2 brick voltage is above the warning voltage limit for X duration (in seconds)
|
Power/drive limits may be reduced
|
No
|