2009 Chevrolet Cobalt Owner's Manual - Page 139

Dome Lamp The vehicle may have a dome lamp. Move the lever to the following positions: Mirror Reading Lamps The vehicle may have reading lamps on the rearview mirror. Press the button to turn the reading lamps on and off. 9 (Off): opened. Turns the lamp off, even when a door is Electric Power Management This vehicle has Electric Power Management (EPM), an advanced control system. It estimates the battery's temperature and state of charge and then adjusts the voltage for best performance and extended life of the battery. When the battery's state of charge is low, the voltage is raised slightly to quickly put the charge back in. When the state of charge is high, the voltage is lowered slightly to prevent overcharging. If the vehicle has a voltmeter gage or voltage display on the Driver Information Center (DIC), you may see the voltage move up or down. This is normal. If there is a problem, an alert will be displayed. 1 (Door): Turns the lamp on whenever a door is opened. + (On): Turns the dome lamp on. Entry/Exit Lighting The lamps inside the vehicle will go on when any door is opened. These lamps fade out about 20 seconds after all of the doors have been closed or when the ignition is turned to ON/RUN. These lamps will also go on when pressing the trunk release, unlock symbol, or the horn symbol button on the Remote Keyless Entry System (RKE) Transmitter. After the key is removed from the ignition, the lamps inside the vehicle stay on for about 20 seconds to provide an illuminated exit. 3-15