Owner`s manual

02 Getting to know your navigation system
System overview
02
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* Option/accessory, for more information, see Introduction.
23
Global Positioning System (GPS)
antenna
The antenna is integrated into the roof module.
Voice control
A number of navigation system commands can
be voice controlled. The microphone is near
the driver's sun visor and the voice control but-
ton is located on the steering wheel keypad.
For additional information, see page 27.
Main VNS unit and DVD drive
The main unit is located in and behind the cen-
ter console and includes the following func-
tions:
•
Determining the vehicle’s location.
•
Calculating a route to the selected desti-
nation.
•
Voice guidance.
•
Processing traffic information.
The GPS and TMC receivers are integrated into
the main unit.
Vehicle location
The navigation system uses signals from the
Global Positioning System, the vehicle’s
speedometer and a gyroscopic sensor to cal-
culate the vehicle’s current location and direc-
tion.
This also helps the system calculate direction
and location if the GPS signal is temporarily
interrupted, such as when driving through a
tunnel.
Traffic information (TMC)*
The Traffic Message Channel (TMC) is a stand-
ardized code system for transmitting traffic
information. The receiver automatically tunes
to the correct frequency and reception is han-
dled by the audio system’s FM antenna.
NOTE
TMC is not available in all areas/countries.
The area covered by the system is being
steadily expanded, which makes occa-
sional updates necessary.
See page 19 for information about updating
maps and system software.
Screen
The screen displays the maps and provides
detailed information about routes, distances,
etc.
For information about caring for the screen,
see page 19.
Center console controls
The number keys in the center console can be
used together with the OK/MENU, TUNE and
EXIT buttons to navigate in menus, confirm
selections or to go back in a menu, see
page 25.
Volume control and infrared (IR)
receiver
Use the vehicle’s audio system volume control
during voice guidance to raise or lower the vol-
ume. See also page 33. The volume can also
be adjusted in the MY CAR menu.
When the optional navigation system remote
control is used, it should be pointed toward the
center console.