The signals received from the GPS satellites are extremely weak (less than a millionth of the strength of a local FM station) and require an unobstructed view of the sky.
The GPS antenna is located in the dashboard. The signal reception can easily be interrupted or interfered with by the following:
• Metallic window tint on the front or side
windows
• Cell phones, PDAs, or other electronic
devices docked in a cradle or lying loose
on the dashboard
• Remote starters or “hidden” vehicle
tracking systems mounted near the
navigation unit
• Audio electronic devices mounted near
the navigation unit
• Trees, tall buildings, freeway overpasses,
tunnels, or overhead electrical power
wires
The GPS is operated by the U.S.
Department of Defense. For security reasons, there are certain inaccuracies built into the GPS for which the navigation system must constantly compensate. This can cause occasional positioning errors of up to several hundred feet.
Displaying the Map Menu
Use the Map Menu to control the icons displayed on the screen. You can also
use
the Map Menu to find locations or to cancel the route.
1. On the map screen, select MAP
MENU (if displayed).
...
Color
INFO button
► Setup ►Other
►Color
Choose the color of the navigation map and system menus.
Select an item.
The following items are available:
• Map: Sets the color of the ...
Wiper Blades
Check the condition of the wiper blades at least every six months.
Replace them if you find signs of cracking in the rubber, areas that are getting
hard, or if they leave streaks and unwiped areas ...