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 is incorrect. |
| • | 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. |
If any of those problems occur, the system may need to be re-calibrated. This
could be due to tire pressure differences, or if a spare tire is installed. To calibrate
the system, see
Navigation Set Up.
