Alerts
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| Signal Name | Description | Condition | Impact |
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BMS_d003_FEIM_Failure
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This alert indicates that the shunt bar temperature is above what is nominally expected, which can be indicative of issues in the penthouse like 3rd party pyros or improperly installed HV components.
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The shunt bar's temperature is above the set threshold during drive
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The output power during drive may be reduced. If a 3rd party pyro is installed or some component in the penthouse is improperly installed, devices in the HV chain may experience additional wear caused by experiencing higher temperatures.
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The battery management system (BMS) receives a request from the high voltage processor (HVP) to initiate a graceful power off (GPO).
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The battery management system (BMS) receives a request from the high voltage processor (HVP) to initiate a graceful power off (GPO).
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Inability to charge, drive, or support the low voltage (LV) system
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The Battery Management System (BMS) energy buffer is greater than the acceptable threshold. This results in an inaccurate range estimate.
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The BMS energy buffer is greater than the acceptable threshold.
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A large energy buffer results in an inaccurate battery State of Charge (SOC) estimation causing a poor range estimate.
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A graceful power (GPO) off has been activated by the battery management system (BMS).
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The BMS detects a condition that requires it to start GPO.
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Inability to charge, drive, or support the low voltage (LV) system
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Battery management system (BMS) detects a condition while charging likely caused by the EVSE / external charging equipment. The BMS stops charging and prevents retries while the charging equipment is connected.
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The BMS detects an issue during charging likely caused by the EVSE / external charging equipment
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The vehicle will not charge while this alert is set
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The battery management system (BMS) has encountered an issue while charging or attempting to charge.
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The BMS detects a condition that prevents it from starting charging.
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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 an issue with brick voltage measurement.
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The BMS detects a mismatch between a stack's voltage and the sum of its brick voltages.
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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 reduced power for driving.
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The BMS detects a condition that requires it to put the vehicle in limp mode.
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Power is reduced.
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The BMS has detected isolation failure conditions in several drive sessions
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Isolation or isolation degradation alert is set in several drive sessions
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Vehicle may be unable to restart
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The battery management system (BMS) detects low isolation while DC charging
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The BMS detects that isolation resistance on the high voltage (HV) bus has fallen below the acceptable threshold while the vehicle is DC charging
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The vehicle will not charge until the charge cable is removed and the alert is cleared
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The battery management system (BMS) detects that the charge port (CP) is missing (MIA).
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The BMS has not received one or more expected CAN messages from the CP.
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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 pattern test failure on a battery monitoring board (BMB).
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The BMS runs the BMB pattern diagnostics and detects a deviation from the expected results for any device in the chain.
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This alert is primarily informational, and may indicate a potential BMB hardware failure.
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The battery management system (BMS) detects a mismatch between actual and commanded fast charge (FC) contactor set state.
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High voltage processor (HVP) comms are ok and fast charge contactors were closed and fast charge contactors are now open / opening and BMS_fcContactorRequest has remained closed.
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DC charging is terminated.
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The battery management system (BMS) detects the vehicle gateway (GTW) as unavailable (MIA). BMS functions that depend on messages from the GTW may be unavailable.
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The battery management system (BMS) does not receive the expected CAN messages from the vehicle gateway (GTW) during a certain amount of time.
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Battery management system (BMS) functions that depend on messages from the vehicle gateway (GTW) may be unavailable, or their performance may be affected.
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The battery management system (BMS) detects that vehicle controller front (VCFRONT) is missing (MIA) while the vehicle is not in a drive state.
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The BMS has not received one more expected CAN messages from VCFRONT while not in drive.
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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 that vehicle controller front (VCFRONT) is missing (MIA) while the vehicle is in driving.
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The BMS has not received one more expected CAN messages from VCFRONT while in drive.
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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 Force External Isolation Test (FEIM) is required but is blocked due to a condition on the vehicle.
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The BMS detects the FEIM is blocked due to another condition on the vehicle. Alert log signal data should provide more information on the specific reason.
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The vehicle may be unable to drive.
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The battery management system (BMS) detects a mismatch between the actual and commanded pack contactor set state.
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High voltage processor (HVP) comms are OK and pack contactors were closed and pack contactors are now open / opening and BMS_packContactorRequest has remained closed.
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Inability to charge, drive, or support the low voltage (LV) system
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The battery management system (BMS) was unable to close pack contactors.
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The BMS detects a condition that prevents it from closing pack contactors.
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Inability to charge, drive, or support the low voltage (LV) system
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