GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2004 🢒 CTS 🢒 Features and Controls 🢒 Features and Controls 🢒 Vehicle Positioning

At times, the position of the vehicle on the map may be inaccurate due to one or more of the following reasons:

    • The road system has changed.
    • The vehicle is traveling on slippery road surfaces such as sand, gravel and/or snow.
    • The vehicle is being driven on winding roads.
    • The vehicle is being driven on a long straight road.
    • The vehicle is approaching a tall building or a large vehicle.
    • The surface streets run parallel to a freeway.
    • The vehicle has just been transferred by a vehicle carrier or a ferry.
    • The current position calibration is set incorrectly.
    • The vehicle is being driven at high speeds.
    • The vehicle is repeating a change of directions by going forward and backward, or the vehicle is turning on a turn table in a parking lot.
    • The vehicle is entering and/or exiting a parking lot, garage or a lot with a roof.
    • The vehicle has a roof carrier installed on it.
    • The vehicle has tire chains on it.
    • The tires have been replaced.
    • The tire pressure is incorrect.
    • The tires are worn.
    • The DVD is used for the first time.
    • The battery is disconnected for several days.
    • The vehicle is driven in heavy traffic where driving is at low speeds and the vehicle is stopped and started repeatedly.

At times, the position of the vehicle on the map may be inaccurate due to one or more of the following reasons:

    • The road system has changed.
    • The vehicle is driving on slippery road surfaces such as in sand, gravel and/or snow.
    • The vehicle is traveling on winding roads.
    • The vehicle is on a long straight road.
    • The vehicle is approaching a tall building or a large vehicle.
    • The surface streets run parallel to a freeway.
    • The vehicle has just been transferred by a vehicle carrier or a ferry.
    • The current position calibration is set incorrectly.
    • The vehicle is traveling at high speed.
    • The vehicle changes directions more than once, or when the vehicle is turning on a turn table in a parking lot.
    • The vehicle is entering and/or exiting a parking lot, garage or a lot with a roof.
    • The GPS signal is not received.
    • A roof carrier is installed on your vehicle.
    • The vehicle is equipped with tire chains.
    • The tires are replaced.
    • The tire pressure for your tires are incorrect.
    • The tires are worn.
    • The first time the map DVD is inserted.
    • The battery is disconnected for several days.
    • The vehicle is driving in heavy traffic where driving is at low speeds, and the vehicle is stopped and started repeatedly.

To relocate the vehicle position on the map, see Setup Menu .

If you experience problems with your system, you may need to calibrate the system. This may be due to tire pressure differences, or if a spare tire is installed. To calibrate the system, see Setup Menu .