Engine Off Load Shed
When the ignition is in ACC or ON and the BCM determines the battery voltage or the battery state of charge has dropped below set levels, a low battery warning message may display in the message center. If the battery voltage or the battery state of charge continues to drop, the audio system powers down to save the remaining battery charge. This load shed state clears once the vehicle is started and battery state of charge is allowed to recover.
When the ignition is in the on and load shed occurs, the message center may display a corresponding message to notify the driver that battery protection actions are active. The audio system shuts down after the message center displays the warning.
If a fault occurs with the battery monitoring sensor or circuit(s), the only engine off load shed strategy that is active is a 45 minute timer. After 45 minutes have elapsed, the audio system turns off. To clear the load shed state, restart the engine.