2007 Jeep Grand Cherokee Owner's Manual - Page 221

UNDERSTANDING YOUR INSTRUMENT PANEL 221 Satellite Navigation Radio with CD Player with MP3 Capability (REC) - combines a Global-Positioning System-based navigation system with an integrated color screen to provide maps, turn identification, selection menus and instructions for selecting a variety of destinations and routes, AM/FM stereo radio and six-disc CD changer with MP3 capability. Mapping information for navigation is supplied on a DVD that is loaded into the unit. One map DVD covers all of North America. Refer to your "Navigation User's Manual" for detailed operating instructions. Operating Instructions - Satellite Radio (If Equipped) Refer to your "Navigation User's Manual" for detailed operating instructions. REC Setting the Clock GPS Clock The GPS receiver used in this system is synchronized to the time data being transmitted by the GPS satellites. The satellites' clock is Greenwich Mean Time (GMT). This is the worldwide standard for time. This makes the system's clock very accurate once the appropriate time zone and daylight savings information is set. 4