Mercury 2003--Marauder Owner's Manual page 54

Driver Controls
Compass mode
The compass reading may be affected when you drive near large
buildings, bridges, power lines and powerful broadcast antenna. Magnetic
or metallic objects placed in, on or near the vehicle may also affect
compass accuracy.
1. Turn ignition to the ON position.
2. Start the engine.
3. From a blank display press and
release the MODE button once. The
directional heading will be
displayed.
Note: If the compass is
de-calibrated, CAL will be displayed
in the right corner of the display.
Refer to "Calibration mode" in this
section for more details.
4. The overhead console displays the compass heading in one of eight
directions: NORTH, NORTHEAST, EAST, SOUTHEAST, SOUTH,
SOUTHWEST, WEST, and NORTHWEST.
Zone variation mode
Most geographic areas (zones) have a magnetic north compass point that
varies slightly from the northerly direction on maps. A correct zone
setting will eliminate compass heading error.
For optimum calibration, turn off all electrical accessories (heater/air
conditioning, wipers, etc.) and make sure all vehicle doors are shut.
To set the compass zone:
1. Press and release the MODE
button until the compass directional
heading is displayed.
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