Compass Variance - Pontiac 2005 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.
Compass Calibration
If the calibration required symbol, or C, appears in the
compass, you must manually put the compass into
the calibration mode. To enter this mode, do the
following:
1. Turn the ignition on and press the MODE button
until CALIBRATE COMPASS displays.
2. Press and hold the SET button for longer than
three seconds.
3-48
ZONE - - PRESS & HOLD SET TO CHANGE: This
display mode will appear when you are manually
calibrating the system. When the compass is being
recalibrated for the first time, the zone symbol will be
displayed. When the compass is being recalibrated any
time after that, the current zone number for compass
variance will be displayed in place of the zone symbol.
Use the SET button to select the zone number from
the graphic shown to select the current area of the
country that you are driving in.