2011 Chevrolet Volt Owner's Manual - Page 264

7-74 Display Infotainment System Night: The map background darkens. To change the overall brightness setting for the display, use the vehicle interior lighting dimming control. Display: Press Display to turn the display of the time on the screen on or off. Global Positioning System (GPS) The position of the vehicle is determined by using satellite signals, various vehicle signals, and map data. At times, other interferences such as the satellite condition, road configuration, the condition of the vehicle, and/or other circumstances can interfere with the navigation system's ability to determine the accurate position of the vehicle. The GPS shows the current position of the vehicle using signals sent by the GPS Satellites of the United States Department of Defense. Setting the Clock To set the time: Press the CONFIG button to enter the menu options. Turn the TUNE/MENU knob to scroll through the available setup features. Press the TUNE/MENU knob or press the Display screen button to display other options within that feature. 1. Press the TP (Time Program) button to go directly to the time setting page or press the CONFIG button and select Time from the list. 2. Press + or - to decrease or increase the Hours and Minutes displayed on the clock. 12/24 HR Format: Press the 12 HR screen button for standard time; press the 24 HR screen button for military time. Day + or Day -: Press the day + or day - display buttons to increase or decrease the day. Dimming Mode Auto (Automatic): The screen background automatically adjusts depending on exterior lighting conditions. Day: The map background brightens.