Oldsmobile 2000 Intrigue - Manual (Page 111)

2-43
Compass Variance
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 during a long
distance cross
- country trip, it will be necessary to adjust
for compass variance. Compass variance is the
difference between earth’s magnetic north and true
geographic north. If not adjusted to account for compass
variance, your compass could give false readings.
To adjust for compass variance:
1. Find your current location and variance zone number
on the following zone map.
2. Press and hold both map lamp buttons on the bottom
of the mirror, for five to eight seconds, until the zone
number appears in the display.
3. Press the right lamp button to increase the zone
numbers or press the left lamp button to decrease the
zone numbers. After you have selected your zone
number, the display will show a compass direction
after five seconds. (Compass calibration may be
necessary. See “Compass Calibration” in the Index.)