2009 Cadillac Escalade Owner's Manual - Page 346

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 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. • 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. • Vehicle is traveling at high speed. 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/retailer if other problems occur. 4-60