GMC 1998 Jimmy Owner's Manual page 124

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Before you turn on the ignition and move the vehicle,
the temperature indicated will be the last outside
temperature recorded with the ignition on. If the outside
temperature is 37°F (3°C) or lower, the display will
toggle between the word ICE and the current
temperature every eight seconds. This is a warning to
the driver that road conditions may be icy, and that
appropriate precautions should be taken.
The compass is self-calibrating, so
it
does not need to
be
manually set. However, if C (Calibration) is displayed,
the compass will need to be calibrated. You may also
place the compass in a noncalibrated mode by pressing
and holding the MODE and US/MET buttons
simultaneously while in the COMP/TEMP mode. After
about 10 seconds, the compass will display C and you
can release the buttons. Drive the vehicle in a complete
360" circle three times at a speed of less than 5 mph
(8 km/h), and the compass will function normally. Once
the
calibration is complete, the display will return
to
a
compass reading.
Variance is the difference between magnetic north and
the two can be great enough to cause false compass
readings. If this happens, follow these instructions to set
the variance for your particular location:
*
oeographic north. In some areas, the difference between
1.
2.
3.
4.
5.
Find your location on the zone map earlier in this
section. Note your zone number.
Press and hold both the MODE and the US/MET
buttons in the COMPITEMP mode.
After five seconds, the compass will acknowledge
the variation mode by displaying the current zone
number. When it does, release both buttons.
Press U S N E T until your zone number appears on
the display.
Press MODE to enter your zone number. Your
variance is now set and the display will return to the
COMP/TEMP
mode.
2-51

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