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On-Route
Select the On Route touch screen button to display all
events ahead on the current active route. If no traffic
events have been reported on route, this list will
be empty.
Avoid List
Press to show previously avoided incidences. Select an
incidence to cancel it from being on the avoided list.
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Scrolling to Traffic Events on the Map
While scrolling the map, traffic condition icons may
appear. To receive information about the traffic condition,
place the cross hairs over the traffic condition icon.
After selecting the INFO (information) screen button,
the type of traffic condition, the street name, and a
description of the traffic condition displays. See “Scrolling
the Map” underMaps on page 2-4for more information.
Press the NAV hard key to return to the normal full
map screen.
Detailed Traffic Event Screens
There are different types of detailed traffic event screens.
Each screen is a variance of the one shown on the Traffic
Event Screen.
The Traffic Event screen can be displayed by:
Scrolling to an event on the map and then
pressing INFO.
Selecting a traffic event listed on the Traffic Event
List screen.
Selecting a traffic event listed on the Traffic On
Route Screen.
Traffic Event Screen
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Back, Map, More, and Avoid
These buttons have common functions across all three
Detailed Traffic Event screens.
Back:Press to return to the previous screen.
Map:Press to show the related traffic event on the
map. If selected, the Map Traffic Event Icon screen
displays.
More:Press to display more of the traffic event
description.
Avoid:This button is used to avoid the location of an
event on the route. If selected, a new route is calculated
and the related traffic event is avoided. After the new
route has been calculated, the navigation system
goes to the full map screen and shows the new route.
The Avoid button is only available if the route ahead and
in the Traffic On Route List.
Traffic Voice Prompts
If the voice prompts are on, whenever an Alert for
Approaching Traffic is displayed, the system gives
the related voice prompt. The content of the voice
prompt depends on actual traffic event data.
The RPT (Repeat) hard key is for navigation traffic
maneuvers only. It is not used to repeat traffic prompts.
During a traffic voice prompt, if RPT is pressed, the
current prompt playback cancels.
Anything that cancels the Alert for Approaching Traffic,
also cancels the related voice prompt.
Traffic prompts are disabled during OnStar
®or Voice
Recognition activity.
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Display
Press the MENU key to enter the Menu options, then
press the MENU key repeatedly until Display is selected
or touch the Display screen button.
Display Off
Touch this screen button to turn the display off.
Press any hard key to view the display.
Brightness/Contrast/Mode
Touch this screen button to change the brightness,
contrast, and mode of the display.
](Brightness):Touch the + (plus) or−(minus)
screen buttons to increase or decrease the brightness
of the screen.
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_(Contrast):Touch the + (plus) or−(minus) screen
buttons to increase or decrease the contrast of the
screen.
Auto (Automatic):Touch this screen button for the
system to automatically adjust the screen background
depending on exterior lighting conditions.
At night, the brightness can be adjusted with the vehicle
dimming knob near the headlamp switch.
Night:Touch this screen button and the system will
make the map background darker.
Day:Touch this screen button and the system will
make the map background brighter.Setting the Clock
Press the MENU key to enter the menu options,
then press the MENU key repeatedly until the time is
selected or touch the time screen button, then press
the Set screen button.
Hours:Press the−(minus) or + (plus) signs to
decrease or increase the hours.
Minutes:Press the−(minus) or + (plus) signs to
decrease or increase the minutes.
12/24 Format:Select the 12 screen button for standard
time; select the 24 screen button for military time.
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Global Positioning System (GPS)
The navigation system determines the position of the
vehicle by using satellite signals, various vehicle signals,
and map data.
At times, other interferences such as the satellite
condition, road con guration, the condition of the vehicle
and/or other circumstances can interfere with the
navigation system’s ability to determine the accurate
position of the vehicle.
The GPS shows the current position of the vehicle using
signals sent by the GPS Satellites of the United States
Department of Defense. When the vehicle is not
receiving signals from the satellites, a symbol appears
on the map screen. Refer toSymbols on page 2-8.This system may not be available or interferences may
occur if:Signals are obstructed by tall buildings, trees, large
trucks, or a tunnel.
Objects that are placed on top of or near the
instrument panel.
Satellites are being repaired or improved.
After-market glass tinting has been applied to the
vehicle’s windshield.
Notice:Do not apply after-market glass tinting to
the vehicle’s windows. Glass tinting interferes
with the system’s ability to receive GPS signals and
causes the system to malfunction. The window
might have to be replaced to correct the problem.
This would not be covered by the warranty.
For more information if the GPS is not functioning
properly, seeIf the System Needs Service on page 2-48
andProblems with Route Guidance on page 2-48.
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Vehicle Positioning
At times, the position of the vehicle on the map may be
inaccurate due to one or more of the following reasons:
The road system has changed.
The vehicle is driving on slippery road surfaces such
as in sand, gravel, and/or snow.
The vehicle is traveling on winding roads.
The vehicle is on a long straight road.
The vehicle is approaching a tall building or a large
vehicle.
The surface streets run parallel to a freeway.
The vehicle has just been transferred by a vehicle
carrier or a ferry.
The current position calibration is set incorrectly.
The vehicle is traveling at high speed.
The vehicle changes directions more than once, or
when the vehicle is turning on a turn table in a
parking lot.
The vehicle is entering and/or exiting a parking lot,
garage, or a lot with a roof.
The GPS signal is not received.
A roof carrier is installed on your vehicle.
The vehicle is being driven with tire chains.
The tires are replaced.
The tire pressure for your tires is incorrect.
The tires are worn.
The rst time the map DVD is inserted.
The battery is disconnected for several days.
The vehicle is driving in heavy traffic where driving is
at low speeds, and the vehicle is stopped and started
repeatedly.
If problems are experienced with the navigation system,
see your dealer/retailer.
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Problems with Route Guidance
Inappropriate route guidance may occur under one or
more of the following conditions:
You have not turned onto the road indicated.
Route guidance may not be available when using
automatic rerouting for the next right or left turn.
The route may not be changed when using
automatic rerouting.
There is no route guidance when turning at an
intersection.
Plural names of places may be announced
occasionally.
It may take a long time to operate automatic
rerouting during high-speed driving.
Automatic rerouting may display a route returning to
the set waypoint if you are heading for a destination
without passing through a set waypoint.
The route prohibits the entry of a vehicle due to a
regulation by time or season or any other regulation
which may be given.
Some routes may not be searched.
The route to the destination may not be shown if
there are new roads, if roads have recently
changed, or if certain roads are not listed on the
map DVD. SeeOrdering Map DVDs on page 2-49.
To recalibrate the vehicle’s position on the map, see
your dealer/retailer.
If the System Needs Service
If the navigation system needs service and the steps
listed here have been followed but there are still
problems, see your dealer/retailer for assistance.
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