Variance
is
the difference between magnetic north and
geographic north. In
some
areas,
the difference between
the
two
can be great enough to cause false compass
readings.
If
this happens, follow these instructions to
set
the variance for your particular location:
1.
Find your location
on
the zone map. Note the
2.
Hold in the
CAE
switch (on the bottom
of
the mirror
housing) for
five
seconds until the current zone entry
number appears in the display.
To
hold
in
the
CAL
switch, insert
a
paper clip
into
the
small hole on the
bottom of the mirror housing.
zone number.
3.
Press the
CAL
switch until the number
for
the
new
zone entry is displayed.
Once the desired zone number
is
displayed, stop
pressing the
CAL
switch and
the
display will
show
compass direction within a few seconds.
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