Cadillac 2003 CTS, Руководство пользователя

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Compass Variance
Compass variance is the difference between earth’s
magnetic north and true geographic north. If the mirror
is not adjusted for compass variance, your compass
could give false readings.
The mirror is set in zone eight upon leaving the factory.
It will be necessary to adjust the compass to compensate
for compass variance if you live outside zone eight.
Under certain circumstances, such as a long distance,
cross
-
country trip, it will be necessary to adjust the
compass variance.
To adjust for compass variance, do the following:
1. Find your current location and variance zone number
on the zone map that follows.
2. Press and hold the on/off button until a zone number
appears on the display.
3. Once the zone number appears on the display, press
the on/off 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 may need calibration.
See “Compass Calibration” listed previously.