Black plate (57,1)Cadillac Escalade/Escalade ESV Owner Manual - 2010Global Positioning System (GPS)The navigation system determines the position of thevehicle by using satellite signals, various vehiclesignals, and map data.At times, other interferences such as the satellitecondition, road configuration, the condition of thevehicle and/or other circumstances can interfere withthe navigation system's ability to determine the accurateposition of the vehicle.The GPS shows the current position of the vehicleusing signals sent by the GPS Satellites of the UnitedStates Department of Defense. When the vehicle is notreceiving signals from the satellites, a symbol appearson the map screen. Refer to Symbols on page 5‑17.This system may not be available or interferences mayoccur if any of the following are true:. Signals are obstructed by tall buildings, trees, largetrucks, or a tunnel.. Objects are located on the front dash of thevehicle.. Satellites are being repaired or improved.. After-market glass tinting has been applied to thevehicle's windshield.Notice: Do not apply after-market glass tinting tothe vehicle's windows. Glass tinting interferes withthe system's ability to receive GPS signals andcauses the system to malfunction. The windowmight have to be replaced to correct the problem.This would not be covered by the warranty.For more information if the GPS is not functioningproperly, see If the System Needs Service onpage 5‑59 and Problems with Route Guidance onpage 5‑58.Vehicle PositioningAt times, the position of the vehicle on the map may beinaccurate due to one or more of the following reasons:. Road system has changed.. Vehicle is driving on slippery road surfaces such asin sand, gravel, and/or snow.. Vehicle is traveling on winding roads.. Vehicle is on a long straight road.. Vehicle is approaching a tall building or a largevehicle.. Surface streets run parallel to a freeway.. Vehicle has just been transferred by a vehiclecarrier or a ferry.. Current position calibration is set incorrectly.5-57InformationProvidedby:
