Compass display (if equipped)
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.
Usually, when something affects the
compass readings, the compass will
correct itself after a few days of operating your vehicle in normal conditions.
If the compass still appears to be inaccurate, a manual calibration may be
necessary. Refer to
Compass calibration adjustment.
Most geographic areas (zones) have a magnetic north compass point that
varies slightly from the northerly direction on maps. This variation is four
degrees between adjacent zones and will become noticeable as the
vehicle crosses multiple zones. A correct zone setting will eliminate this
error. Refer to
Compass zone adjustment.
Compass zone adjustment
1. Determine which magnetic zone
you are in for your geographic
location by referring to the zone
map.
2. Locate the compass module and
the calibration button mounted on
the center rear view mirror post.
3. Turn ignition to the ON position.
4. Press and hold the CALIBRATION
BUTTON switch located on top of
the compass module until the
message center display changes to
show the current zone setting.
5. Release the CALIBRATION
BUTTON, then slowly press down
again. Press the CALIBRATION BUTTON repeatedly until the correct zone
setting for your geographic location is displayed on the message center.
6. To exit the zone setting mode, release pressure from the switch for
greater than ten seconds.
TRUNK AJAR DOOR AJAR
TRAC OFF AIR SUSPENSION
O/D OFF TRAC ACTIVE
SPEED CONTROL COMPASS
km
CIRCLE
SLOWLY
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Instrumentation
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Summary of Contents for 1999 Town Car
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