Compass Variance - Pontiac 2001 Aztek Owner's Manual

Compass Variance

Compass variance is the difference between magnetic
north and geographic north. In some areas of the
country, the difference is great enough to cause the
compass to give false readings. If this occurs, the
compass must be set.
Automatic Compass Calibration
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The compass is self calibrating, which eliminates the
need to manually set the compass. When the vehicle is
new, the calibration process may not be complete. In these
cases,the calibration symbol "C" will be displayed where
the compass reading is normally displayed.
To calibrate the compass, in an area free from
large metal objects, make three 360 degree turns.
The calibration symbol will turn off and the compass
reading will be displayed.
Manual Compass Calibration
If the compass appears erratic and the calibration
symbol does not appear, you must manually put the
compass into the calibration mode. To get into this
mode, do the following:
1. Turn the ignition on and cycle the DIC to the
compass/temperature mode.
2. Press and hold the SET button for longer then
three seconds.
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