Each item in the list below represents topics covered in detail below.

The Navigation radio operates similar to a traditional radio. For information on the audio description and operation, see Radio/Audio System Description and Operation

The navigation system contains the following components:

The export navigation system (U3Q) contains the following additional components:

This component acts as the operator interface for the navigation system, provides the data input from the operator to the navigation system and provides navigation information to the operator via the display screen. The navigation radio is located in the center of the instrument panel. The navigation radio provides the following:

The global positioning system (GPS) antenna is located in the upper center of the I/P. The GPS antenna is powered through the same coaxial cable used to send the signals to the NAV radio. Interference to the system may occur if any of the following exist:

The map will display the route to the selected destination. Voice prompts alert the operator of upcoming events (turns) and arrivals at the destination. The navigation system will automatically recalculate if the route is not followed. The navigation radio uses data received from the global positioning system (GPS) satellites as well as the vehicle speed signal to accurately display the current position of the vehicle. The map DVD must be in the NAV radio for route guidance.

The Navigation System's voice recognition allows for hands-free operation of navigation and audio system features. The voice recognition can be used when the ignition is in accessory or ON, or when retained accessory power (RAP) is active. This feature only works if the map DVD is inserted and the AGREE button has been pressed. For a complete list of available commands, refer to the Owners Manual Navigation Supplement and/or Personalization in the Owners manual.

Points of interests (POI) are locations that are frequently visited. Points of interest can be can be displayed on the map or set as a destination. The following are some of the available POI:

The vehicle information communication system (VICS) card, an export only dealer-installed option, is installed inside the navigation radio. The VICS card uses signals from the optical/microwave beacon antenna and the rear glass VICS antenna via the TV antenna module to convey routing information to the NAV. The NAV either revises planned routing or relays the VICS information to the operator through the screen of the navigation radio and the voice guidance system.

The vehicle information communication system (VICS) optical/microwave beacon antenna is a dealer-installed option. The antenna, which is mounted on the right side of the instrument panel, picks up signals through the front window glass. A coaxial cable carries the power to and signals from this antenna to the navigation radio.

These several antennae are conductive traces placed on the inside of the rear window glass.

The TV antenna module is located behind the trim on the right rear side of the passenger compartment. The TV antenna module is used by the navigation radio to automatically select the antenna combination that provides the strongest TV signal to the navigation radio. The TV antenna module also provides the vehicle information communication system (VICS) FM signal to the VICS card (if equipped).

The TV antenna amplifiers are mounted behind the trim on each side of the rear window. The TV antenna amplifiers are powered by the TV antenna module through the same coaxial cable used to carry their signals to the TV antenna module. They are attached to the 4 TV antenna trace patterns in the rear window glass.