Compass Variance
The mirror is set to zone eight upon leaving the
factory. It will be necessary to adjust the compass
to compensate for compass variance if the
vehicle is driven outside zone eight. Under certain
circumstances, such as a long distance,
cross-country trip, it will be necessary to adjust the
compass variance.
Compass variance is the difference between
earth’s magnetic north and true geographic north.
If the mirror is not adjusted to account for zone
changes, the compass could give false readings.
To adjust for zone changes, do the following:
1. Find your current location and variance zone
number on the zone map that follows.
2. Press and hold the “auto highbeam” button
approximately six seconds until a zone
number appears in the display.
3. Once the zone number appears in the display,
press the “auto highbeam” button quickly until
you reach the correct zone number. Stop
pressing the button and the mirror will return to
normal operation. If C appears in the compass
window, the compass needs calibration. See
“Compass Calibration” listed previously.
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