Lincoln 1998 Continental - Manual (Page 56)

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
mounted at the base of mirror.
3. Turn the ignition to the ON
position.
4. Insert an appropriate diameter
rod (paperclip) into the right switch
access hole underneath the compass
module and gently press for 1 to 2
seconds until ZONE and the current
zone setting are displayed on the
upper right corner of the mirror.
1
2
3
4
5
6
7 8 9
10
11
12
13
14
15
Controls and features
56