Alerts

The BMS detects that the contactor stress estimate has exceeded the grace period threshold.

The maximum discharge current will be linearly ramped down as contactor stress continues to increase.

The BMS detects that the overall SOC imbalance (BMS_socCellMaxDbg - BMS_socCellMinDbg) exceeds the acceptable threshold.

The target max brick voltage for charge is limited to the voltage corresponding to 50% state of charge (SOC).

The BMS detects that fast charging was attempted while the SOC was already at or above the charge limit that has been set.

The vehicle will not charge any further.

The BMS requests another isolation check before closing pack contactors.

There is a forced external isolation measurement, which delays the contactors closing.

CA_vehConnTempDegC signal received from Chademo Adapter exceeds the threshold

CHAdeMO charging is terminated

The BMS has detected BMB brick 6 voltage sense inconsistencies.

Slight reduction of range at full charge

The BMS detects that isolation is below the acceptable threshold over the course of multiple drive cycles.

This alert is primarily informational.

The BMS detects the GTW_frontDriveUnitType does not match the HV battery's expectations.

This alert is primarily informational and is used for logging purposes. It is usually triggered after an HV battery replacement.

A module voltage sensor reports a voltage above the maximum threshold.

Inability to charge

The BMS detects there is a mismatch between the sum of bricks of one module and the module voltage.

This alert is primarily informational and is used for logging purposes. It may indicate an issue with voltage sensing.

The BMS detects regen power is above the maximum threshold while in drive.

Inability to charge, drive, or support the low voltage (LV) system

The BMS has detected that the difference between the brick that needs the least amp hours (Ah) compared to the one that needs the most is above the maximum threshold.

This alert is primarily informational and is used for logging purposes. It may indicate a poorly balanced pack, which should go away after the pack is properly balanced.

The BMS detects an SOC delta that is outside of the expected threshold between the minimum brick SOC and the average brick SOC of the pack, and the alert BMS_a164_Brick_SOC_Imbalance is not active.

No expected impact on vehicle functionality.

The BMS detects a condition that requires the HV battery to enter ramp down.

Inability to charge, drive, or support low voltage (LV) system

The BMS detects that the SOC imbalance between any two bricks associated with a module is above the warning threshold.

This alert is primarily informational and is used for logging purposes.

The BMS detects that contactors have undergone stress from a WOT event.

This alert is primarily informational.

The BMS detects that the voltage on the DC link bus is rising slower than it should be.

The vehicle cannot DC FC.

The BMS detects that the pack contactor stress estimate is above the warning limit threshold.

This alert is primarily informational and serves as an early warning of pack contactor degradation.

The BMS detects that a brick voltage is over the maximum threshold.

This alert is primarily informational and is used for logging purposes. It is intended to flag early overvoltage issues.

With the standby supply enabled, the output voltage measured by the Battery Management System (BMS) is less than the vehicle's 12V input measurement for a significant amount of time.

The standby supply is unavailable.