2011 Cadillac Escalade Owner's Manual - Page 299

Infotainment System 7-97 Vehicle Positioning At times, the position of the vehicle on the map may be inaccurate due to one or more of the following reasons: . . . Vehicle is traveling at high speed. Vehicle changes directions more than once, or when the vehicle is turning on a turn table in a parking lot. Vehicle is entering and/or exiting a parking lot or a garage. GPS signal is not received. Roof carrier is installed on the vehicle. Vehicle is being driven with tire chains. Tires are replaced. Tire pressure for the tires is incorrect. Tires are worn. First time the map DVD is inserted. Battery is disconnected for several days. . . Vehicle is driving in heavy traffic where driving is at low speeds, and the vehicle is stopped and started repeatedly. See your dealer if other problems occur. Road system has changed. Vehicle is driving on slippery road surfaces such as in 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 large vehicle. Surface streets run parallel to a freeway. Vehicle has just been transferred by a vehicle carrier or a ferry. Current position calibration is set incorrectly. . . . 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. . . . . . . . . . .