Saturn 2006 Ion Automobile User Manual


 
Compass Calibration
The compass may need calibration from time to time.
In order to calibrate, CAL must be displayed in the mirror
compass windows. If CAL is not displayed, push in
the on/off button for approximately nine seconds or
until CAL is displayed.
The compass can be calibrated by driving the vehicle
in circles at 5 mph (8 km/h) or less until the display
reads a direction, or the word CAL disappears.
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 of zone eight.
Under certain circumstances, 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 do the following:
1. Find your current location and variance zone
number on the following zone map.
2. Press and hold the on/off button until a zone
number appears in the display. The compass is
now in zone mode.
3. Keep pressing the on/off button until the desired
zone number appears in the display. Release
the button. After approximately four seconds of
inactivity, the new zone number will be locked
in and the comp/temp display will return.
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