Alerts
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| Signal Name | Description | Condition | Impact |
|---|---|---|---|
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The battery management system (BMS) has detected that the high voltage interlock loop (HVIL) is shorted with the contactors closed.
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The BMS detects that HVIL voltage is lower than expected.
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Inability to charge, drive, or support the low voltage (LV) system
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There is an external or internal isolation alert while pack contactors are closed.
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The BMS detects that isolation is below the minimum threshold while contactors are closed.
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Inability to charge, drive, or support the low voltage (LV) system
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High impedance was detected on one or more bricks.
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Impedance for one or more bricks exceeds the noise threshold for several measurement counts.
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One or more cells in a brick are likely missing, resulting in a high impedance current path. Other potential causes are a high Direct Current Resistance (DCR), intermittent anode laser weld on the given brick(s), or an islanded brick.
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The battery management system (BMS) detects a condition internal to the high voltage (HV) battery that requires the max allowed brick voltage to be limited.
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BMS_w117_SW_Delta_SOC_Weak_Short is set and (UI_dSocAlertEnable==1 or dSocAlertEnabledByDefault==1).
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The target max brick voltage for charge is limited to the voltage corresponding to 50% SOC.
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High voltage isolation dropped under threshold in many drive sessions.
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Isolation or isolation degradation alert is set many times
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Vehicle will be unable to restart
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The battery management system (BMS) has detected that a brick's voltage slope is significantly less than average.
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The BMS detects that brick voltage is staying constant even while pack current is rising or dropping.
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Inability to charge, power is reduced, and regenerative breaking is reduced
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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.
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The BMS detects that the voltage of a stack is above the maximum threshold.
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Inability to charge
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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.
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Inability to charge, drive, or support the low voltage (LV) system
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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.
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This alert is primarily informational and is used for logging purposes. No expected impact on vehicle functionality.
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The battery management system (BMS) has detected that a brick has shown second order instability noise.
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The BMS detects that brickV[n], when compared with avgModulebrickV, shows large differentials and noise.
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This alert is primarily informational.
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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 has fallen below the minimum brick voltage.
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The BMS detects that a brick fell below the minimum brick 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 has exceeded the maximum brick voltage.
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The BMS detects that a brick exceeded the maximum brick 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) 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.
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The Gateway packPerformanceDeviation config does not match the configured pack type.
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GTW_packPerformanceDeviation is not compatible with the configured pack type.
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This alert may indicate an incorrect config block, or that the installed pack is incompatible with the car config.
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The battery management system (BMS) detects that the high voltage (HV) battery config block does not match the configuration of the vehicle.
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GTW_packEnergy is not compatible with the configured pack type.
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This alert may indicate either an incorrect config block, or that the installed pack is incompatible with the car configuration.
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Battery pack 3 has pack voltage too low to allow dcdc support.
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Battery pack 3 has pack voltage below the voltage too low set threshold
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LV support may be blocked
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A battery pack 3 brick voltage is above the fault voltage limit.
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A battery pack 3 brick voltage is above the fault voltage limit for X duration (in seconds)
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Power/drive limits may be reduced
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A battery pack 2 brick voltage is above the fault voltage limit.
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A battery pack 2 brick voltage is above the fault voltage limit for X duration (in seconds)
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Power/drive limits may be reduced
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A battery pack 1 brick voltage is above the fault voltage limit.
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A battery pack 1 brick voltage is above the fault voltage limit for X duration (in seconds)
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Power/drive limits may be reduced
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