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BMS_a256 — SW Low Power Warning

Full alert identifier: BMS_a256_SW_Low_Power_Warning

Message shown in the car

Battery power output very low Charge now

Alert description

The Battery Management System (BMS) detects that the discharge power of the High Voltage (HV) battery is approaching the threshold that is too low to support driving.

Potential impact

Vehicle power and performance might be reduced to conserve energy.

Set condition

The BMS detects that the State of Charge (SOC) is below the threshold to support driving.

Clear condition

The BMS detects that the State of Charge (SOC) has recovered above the threshold required to support driving. Charging the vehicle will clear this alert.

Signals to check

Open this alert in Service Mode Plus and review the Payload tab. Use the field names below to identify the values shown by your vehicle.

Signal Unit
Soc BMS_a256_SOC %
Max Brick T BMS_a256_maxBrickT C
Max Brick V BMS_a256_maxBrickV V
Min Brick T BMS_a256_minBrickT C
Min Brick V BMS_a256_minBrickV V
Pack Soe BMS_a256_packSoe %

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of BMS_a256.

Browse all BMS alert codes