Black plate (59,1)Cadillac CTS/CTS-V Navigation Manual (GMNA-Localizing-U.S./Canada/Mexico-6183769) - 2014 - 1st Edition - 4/3/13Infotainment System 59For more information if the GPS isnot functioning properly, see “If theSystem Needs Service” and“Problems with Route Guidance”.Vehicle PositioningAt times, the position of the vehicleon the map may be inaccurate dueto 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 carrieror a ferry.. The current position calibrationis set incorrectly.. The vehicle is traveling at highspeed.. The vehicle changes directionsmore than once, or when thevehicle is turning on a turn tablein a parking lot.. The vehicle is entering and/orexiting a parking lot, garage or alot with a roof.. The GPS signal is not received.. A roof carrier is installed on thevehicle.. The vehicle has tire chainsinstalled.. The tires are replaced.. The tire pressure for the tires isincorrect.. The tires are worn.. The first navigation use after themap data is updated.. The battery is disconnected forseveral days.. The vehicle is driving in heavytraffic where driving is at lowspeeds, and the vehicle isstopped and started repeatedly.If experiencing problems with thesystem, it may need to becalibrated. See “Compass” in theowner manual.Problems with RouteGuidanceInappropriate route guidance mayoccur under one or more of thefollowing conditions:. You have not turned onto theroad indicated.. Route guidance may not beavailable when using automaticrerouting for the next right orleft turn.. The route may not be changedwhen using automatic rerouting.. There is no route guidance whenturning at an intersection.