2010 Cadillac CTS Owner's Manual - Page 147

Instruments and Controls The following are the possible messages that can be displayed and some information about them. pressing the vehicle information button until Battery Voltage is displayed. 4-37 Battery Voltage and Charging Messages Battery Saver Active This message displays when the system detects that the battery voltage is dropping below expected levels. The battery saver system starts reducing certain features of the vehicle that you may be able to notice. At the point that the features are disabled, this message is displayed. It means that the vehicle is trying to save the charge in the battery. Turn off all unnecessary accessories to allow the battery to recharge. The normal battery voltage range is 11.5 to 15.5 volts. You can monitor battery voltage on the DIC by Battery Volts Low This message displays when the electrical system is charging less than 10 volts or the battery has been drained. If this message appears immediately after starting the engine, it is possible that the generator can still recharge the battery. The battery should recharge while driving, but may take a few hours to do so. Consider using an auxiliary charger to boost the battery after returning home or to a final destination. Make sure you follow the manufacturer's instructions. If this message appears while driving or after starting the vehicle and stays on, have it checked immediately to determine the cause of this problem. To help the generator recharge the battery quickly, you can reduce the load on the electrical system by turning off the accessories. The normal battery voltage range is 11.5 to 15.5 volts. You can monitor battery voltage on the DIC by pressing the vehicle information button until Battery Voltage is displayed. Service Battery Charging System This message displays when there is a problem with the generator and battery charging systems. Driving with this problem could drain the battery. Turn off all unnecessary accessories. Stop and turn off the vehicle as soon as it is safe to do so. Have the electrical system checked by your dealer/retailer. Under certain conditions, the charging system light may also turn on in the instrument panel cluster. See Charging System Light on page 4‑23 for more information.