Navigation System & Telecommunication System: Navigation/Telecommunication: Operation: Navigation

The Navigation System uses a Global Positioning System (GPS) antenna mounted under the instrument panel to collect satellite data to compute the position of the vehicle. A navigation unit uses the satellite data to translate the vehicle location to latitude and longitude coordinates. It combines the latitude and longitude with proprietary map data from a DVD unit to perform all system calculations and display formatting. A single DVD disc contains map information for the entire United States. The DVD unit is mounted in the covered underfloor storage compartment at the rear of the vehicle. The map database information works with the application software to perform the following operations:

• Map Guidance
• Vehicle Positioning
• Address Retrieval

The system provides the following additional capabilities:

• Increase or decrease map scale using ENTER and direction arrows
• Scroll through map to a desired destination and press ENTER to begin routing
• Cancel route guidance
• Change language via the EVIC system using the MENU and STEP buttons
• Change display measurement units using the US/M button (Changes units for all displays in the vehicle)