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If the address is not found within themap database, the system may uselatitude and longitude coordinates tolocate the destination.
If the system is unable to locate theaddress, the Destination Not Foundmessage displays.
Route Guidance Not Active
If an OnStar destination isdownloaded while route guidance isnot active, the navigation systemshows a pop-up display with thefollowing functions:
Start Guidance :To u c h t o s t a r troute calculation to thedestination(s) received.
Show on Map :To u c h t o a c c e s sthe Map display.
Call :To u c h t o i n i t i a t e a c a l l w i t h aBluetooth Phone or OnStarHands-Free Calling (if available).
Save as Home :To u c h t o s e t a naddress as a home destination.
Save :To u c h t o s a v e t h edownloaded destination to theaddress book.
Route Guidance Active
If an OnStar destination isdownloaded while route guidance isalready active, the system shows apop-up display with the followingfunction:
.To u c h S t a r t G u i d a n c e ; t h enavigation system adds thedownloaded destination beforethe next waypoint of the existingroute (closest to the currentvehicle position).
.All other options on the pop-updisplay operate as describedunder“Route Guidance NotActive.”
Previous Destinations
Previously downloaded OnStardestinations are saved underPrevious Destinations in thenavigation system, where they canbe accessed or saved to theAddress Book.
Configure Menu
The Configuration Menu is used toadjust features and preferences,such as Sound, Radio, Nav(Navigation), Display, or TimeSettings.
1. Touch the Config icon on theHome Page.

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2. Touch-tap the scroll bar untilthe desired option displays.Select the desired settings tochange. See the informationthat follows for details on eachsetting.
Languages
To u c h t h e C o n f i g i c o n o n t h e H o m ePage or press CONFIG on thecenter stack to enter the menuoptions. Turn the TUNE/MENU knobor touch-tap the scroll bar to scrollthrough the available options. Pressthe TUNE/MENU knob or touchLanguages to display thelanguages. Select the desiredlanguage.
Time and Date Settings
From Time and Date Settings, touchto display the Time and DateSettings menu.
Automatic Clock Update :Whenenabled, this feature will set theclock automatically.
Set Time :To u c h + o r✓to increaseor decrease the Hours and Minutesdisplayed on the clock.
Set Date :To u c h + a n d✓toincrease or decrease the day.
Set Time Format :To u c h t h e 1 2Hour option for standard time; touchthe 24 Hour option for military time.
To u c h B a c k o n t h e i n f o t a i n m e n tdisplay to save the adjustments.
Radio Settings
To u c h t h e C o n f i g i c o n o n t h e H o m ePage or press CONFIG on thecenter stack to enter the menuoptions. Turn the TUNE/MENU knobor touch-tap the scroll bar to scrollthrough the available options. Pressthe TUNE/MENU knob or touchRadio Settings to display the radiosettings menu. Touch this feature tomake changes for radio informationdisplayed, preset pages, AutoVolume Control, and XM CategoriesRestore. SeeSatellite Radio0142,for more information about XMCategories.
The Radio Settings are:
Auto Volume :Select OFF, Low,Medium, or High sensitivity toautomatically adjust the volume tominimize the effects of unwantedbackground noise that can resultfrom changing road surfaces, drivingspeeds, or open windows. Thisfeature works best at lower volumesettings where background noise istypically louder than the soundsystem volume.

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Gracenote Options :To u c h t oenable/disable Normalization usedto improve voice recognition andmedia groupings. SeeUSB0158andBluetooth Audio0163.
XM Channel Graphics :To u c h t oenable/disable the XM Audio pagebackground on the XM Channeldisplay.
Startup Volume :To u c h t o s e t t h emaximum volume level for startupthat will be used even if a highervolume had been set when the radiowas turned off.
Number of Favorite Pages :To u c hto select the number of FAV pagesto be displayed.
XM Categories :To u c h t ocustomize which available XMCategories are used and displayed.
Software Version Information :To u c h t o d i s p l a y i n f o r m a t i o n a b o u tthe system and update software ifavailable.
Phone Settings
SeeBluetooth0195in the“Phone”section for more information onphone settings.
Navigation Settings
To u c h t h e C o n f i g i c o n o n t h e H o m ePage to enter the setup menu. Turnthe TUNE/MENU knob or touch-tapthe scroll bar until the NavigationSettings option displays. Select thisfeature to make changes to VoicePrompt, Traffic Settings, RouteOptions, and Home Address.
Navigation Settings Options
Va r i o u s n a v i g a t i o n s y s t e m s e t t i n g sare available through theConfiguration Menu. Some optionsare only available after a route isplanned.
To u c h N a v i g a t i o n S e t t i n g s t o a c c e s sthe navigation system settings.
Voice Prompt

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The Voice Prompt menu allowschanges to the voice promptfeatures.
Navigation Voice Prompts :Selectthe check box on the right side toturn the voice instructions on or offwhile traveling on a planned route.Select the box
Tr a f f i c A l e r t P r o m p t s :Select thecheck box on the right side to turnthe traffic voice prompt on or offwhile traveling on a planned route.
Navigation Volume :SelectNavigation Volume to change thevolume of the navigation prompts.
Traffic Settings
To u c h t o d i s p l a y t h e T r a f f i cSettings menu.
Tr a f f i c E v e n t s :To u c h t o e n a b l e o rdisable the traffic feature.
Tr a f f i c A l e r t P r o m p t s :To u c h t oenable or disable the traffic voiceprompts.
Route Based on TrafficConditions :To u c h t o d i s p l a y asubmenu of options.
.Route Based on TrafficConditions: Touch to enable ordisable the route feature.
.Automatic Recalculation: Touchto enable automatic routerecalculation.
.Recalculation after Confirmation:To u c h t o e n a b l e r o u t erecalculation after confirmation.
Sort Method :To u c h t o d i s p l a y asubmenu of sort options.
.Sort by Distance: Touch todisplay traffic events in order ofdistance with the closest eventshown first.
.Sort By Road Name: Touch todisplay traffic events inalphabetical order.
Show Traffic Events on Map :To u c h t o d i s p l a y t r a f f i c i c o n s o nthe map.
.Show All On: Touch to enabledisplay of all traffic icons onthe map.
.Hide All Off: Touch to disabledisplay of all traffic icons onthe map.
.User Defined: Touch to definethe individual types of icons thatare displayed for traffic flow andtraffic conditions.

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Traffic Flow
The traffic flow status will display ingreen, yellow, or red lines besidethe road.
.Red indicates significantlyimpaired traffic flow with averagespeed less than 40 km/h(25 mph).
.Ye l l o w i n d i c a t e s s l i g h t l y i m p a i r e dtraffic flow with average speedbetween 40 and 73 km/h (25 and45 mph).
.Green indicates normal trafficflow with average speed above73 km/h (45 mph).
Closed Roads, Traffic Delays,Roadwork, Incidents, andAdvisories
Select the traffic event group fordisplay while in the map view. Someevents may cover more than onetraffic condition. See the followingtraffic conditions.
Traffic Conditions
The following traffic condition iconsmay display:
Stopped TrafficTraffic Jam
AccidentRoad Closed
Lane NarrowsRoad Work,
Construction
AlertRoad Condition
Road VisibilityOther
Delete Saved Destinations

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To u c h t o d e l e t e a l l s a v e ddestinations. A Delete SavedDestinations submenu displays.Select the desired options fordeletion and touch Delete at thebottom to continue. A confirmationdisplays requesting to delete orcancel.
Guidance Alerts
To u c h t o e n a b l e t h e g u i d a n c e a l e r tpop-up to be viewed on the map oron the main displays such as audio,weather, phone, etc. A checkmarkappears to indicate the guidancealert mode is on.
Vehicle Settings
SeeVehicle Personalization0120.
Display Settings
To u c h t h e C o n f i g i c o n o n t h e H o m ePage or press CONFIG on thecenter stack, then select DisplaySettings from the list.
The following options may display:
Select icons for Home Page :To u c h t o c u s t o m i z e t h e f i r s t p a g e o fthe Home Page.
Display Off :To u c h t o t u r n o f f t h edisplay. The display will return whenany radio icons are touched or theinfotainment display is touched (ifequipped).
Map Settings :To u c h t o e n t e r t h esubmenu to change Map Displaysettings and enable Speed Limitdisplay on map.
While in Map Settings, touch MapDisplay to change the displaybackground.
Map Display :To u c h t o c h a n g e t h edisplay background.
To c h a n g e t h e o v e r a l l b r i g h t n e s ssetting for the display, use thevehicle interior lighting instrumentpanel illumination control.
Global Positioning
System (GPS)
The position of the vehicle isdetermined by using satellitesignals, various vehicle signals, andmap data.
At times, other interference such asthe satellite condition, roadconfiguration, condition of thevehicle, and/or other circumstancescan affect the navigation system'sability to determine the accurateposition of the vehicle.
The GPS shows the current positionof the vehicle using signals sent bythe GPS Satellites. When thevehicle is not receiving signals from

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the satellites, a symbol appears onthe map display. SeeNavigationSymbols0169.
This system might not be availableor interference can occur if any ofthe following are true:
.Signals are obstructed by tallbuildings, trees, large trucks,or a tunnel.
.Satellites are being repaired orimproved.
For more information if the GPS isnot functioning properly, seeProblems with Route Guidance0187andIf the System NeedsService0188.
Vehicle Positioning
At times, the position of the vehicleon the map could be inaccurate dueto one or more of the followingreasons:
.The road system has changed.
.The vehicle is driving on slipperyroad surfaces such as sand,gravel, or snow.
.The vehicle is traveling onwinding roads or long straightroads.
.The vehicle is approaching a tallbuilding or a large vehicle.
.The surface streets run parallelto a freeway.
.The vehicle has been transferredby a vehicle carrier or a ferry.
.The current position calibrationis set incorrectly.
.The vehicle is traveling at highspeed.
.The vehicle changes directionsmore than once, or the vehicle isturning on a turn table in aparking lot.
.The vehicle is entering and/orexiting a parking lot, garage, or alot with a roof.
.The GPS signal is not received.
.Aroofcarrierisinstalledonthevehicle.
.Tire chains have been installed.
.The tires are replaced or worn.
.The tire pressure for the tires isincorrect.
.This is the first navigation useafter the map data is updated.
.The 12-volt battery isdisconnected for several days.
.The vehicle is driving in heavytraffic where driving is at lowspeeds, and the vehicle isstopped and started repeatedly.
Problems with Route
Guidance
Inappropriate route guidance canoccur under one or more of thefollowing conditions:
.The turn was not made on theroad indicated.
.Route guidance might not beavailable when using automaticrerouting for the next right orleft turn.
.The route might not be changedwhen using automatic rerouting.
.There is no route guidance whenturning at an intersection.

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.Plural names of places might beannounced occasionally.
.It could take a long time tooperate automatic reroutingduring high-speed driving.
.Automatic rerouting mightdisplay a route returning to theset waypoint if heading for adestination without passingthrough a set waypoint.
.The route prohibits the entry of avehicle due to a regulation bytime or season or any otherregulation which may be given.
.Some routes might not besearched.
.The route to the destinationmight not be shown if there arenew roads, if roads haverecently changed, or if certainroads are not listed in the mapdata. SeeMaps0168.
To r e c a l i b r a t e t h e v e h i c l e ' s p o s i t i o non the map, park with the vehiclerunning for two to five minutes, untilthe vehicle position updates. Makesure the vehicle is parked in a
location that is safe and has a clearview of the sky and away from largeobstruction.
If the System Needs
Service
If the navigation system needsservice and the steps listed herehave been followed but there arestill problems, see your dealer forassistance.
Map Data Updates
The map data provided in thevehicle is the most up-to-dateinformation available when thevehicle was produced. The mapdata is updated periodically,provided that the map informationhas changed.
For questions about the operation ofthe navigation system or the updateprocess, contact the GM Nav DiscCenter toll-free phone number,1-877-NAV-DISC (1-877-628-3472)or go to the center’swebsite,www.gmnavdisc.com. If updates areneeded, call the GM Nav DiscCenter or order a new Map Update
online. To order map data, have thevehicle’sVehicleIdentificationNumber (VIN) available. SeeVehicle Identification Number (VIN)0361.
After receiving the updated mapdata, seeMaps0168.
Database Coverage
Explanations
Coverage areas vary with respect tothe level of map detail available forany given area. Some areas featuregreater levels of detail than others.If this happens, it does not meanthere is a problem with the system.As the map data is updated, moredetail can become available forareas which previously had limiteddetail. SeeMap Data Updates0188for more information.