Ford 2007 Escape Hybrid Owner's Manual page 61

Entertainment Systems
Principles of GPS (Global Positioning System) operation
Your Vehicle Navigation System directs you based on information derived
from satellites, road maps stored on the CD, sensors in your vehicle and
the desired destination. The system compiles all necessary information to
guide you to your selected destination. Space satellites determine the
vehicle's current location and transmit position and time signals to your
car.
If the vehicle has been parked for a long period of time, the navigation
function may be temporarily unresponsive. The navigation system will
operate reliably again once GPS reception is available in a few minutes.
Limited GPS reception
System performance may be adversely affected if GPS reception is
interrupted or interference occurs over a distance of several miles. The
following are possible causes for GPS reception being interrupted. If the
vehicle is:
• in multi-story parking garages
• in tunnels and under bridges
• in between high buildings
• by forests or tree-lined avenues
• in heavy rain showers and thunderstorms
• in valleys and in mountainous regions
The GPS signal strength may vary. The directional heading indicator at
the bottom of the screen might change color to indicate this signal
strength. The colors are as follows:
• Green — A clear GPS signal is being received.
• Yellow — The GPS signal is partially blocked.
• Red — The GPS signal is unavailable and may be temporarily blocked.
Note: After an ignition cycle, the system must connect to a satellite
signal to get the time for the display.
60
2007 Escape Hybrid (ehv)
Owners Guide (post-2002-fmt)
USA (fus)