Cadillac CTS2010 Owner's Manual

Also see for CTS 2010: Owner's manual

Global PositioningSystem (GPS)The navigation system determinesthe position of the vehicle byusing satellite signals, variousvehicle signals, and map data.At times, other interferences suchas the satellite condition, roadconfiguration, the condition of thevehicle and/or other circumstancescan interfere with the navigationsystem’s ability to determinethe accurate position of the vehicle.The GPS shows the current positionof the vehicle using signals sent bythe GPS Satellites of the UnitedStates Department of Defense.When the vehicle is not receivingsignals from the satellites, a symbolappears on the map screen. Refer toSymbols.This system may not be available orinterferences may occur if any of thefollowing is true:• Signals are obstructed by tallbuildings, trees, large trucks, or atunnel.• Objects are located on the rearshelf of the vehicle.• Satellites are being repaired orimproved.• After-market glass tinting hasbeen applied to the vehicle’s rearwindshield.Notice: Do not apply after-marketglass tinting to the vehicle’swindows. Glass tinting interfereswith the system’s ability to receiveGPS signals and causes thesystem to malfunction. Thewindow might have to be replacedto correct the problem. This wouldnot be covered by the warranty.For more information if the GPS isnot functioning properly, see If theSystem Needs Service andProblems with Route Guidance.Vehicle PositioningAt times, the position of the vehicleon the map may be inaccuratedue to one or more of the followingreasons:• The road system has changed.• The vehicle is driving on slipperyroad surfaces such as in sand,gravel and/or snow.• The vehicle is traveling onwinding roads.• The vehicle is on a longstraight road.• The vehicle is approaching a tallbuilding or a large vehicle.• The surface streets run parallelto a freeway.• The vehicle has just beentransferred by a vehicle carrier ora ferry.• The current position calibration isset incorrectly.• The vehicle is traveling at highspeed.70 Infotainment System