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Cadillac Escalade EXT Owner Manual - 2011
5-6 Instruments and Controls
Compass variance is the difference
between the earth's magnetic north
and true geographic north. If the
compass is not set to the zone
where you live, the compass may
give false readings. The compass
must be set to the variance zone in
which the vehicle is traveling.
To adjust for compass variance, use
the following procedure:
Compass Variance (Zone)
Procedure
1. Do not set the compass zone
when the vehicle is moving. Only
set it when the vehicle is in
P (Park).
Press the vehicle information
button until PRESS
V TO
CHANGE COMPASS ZONE
displays.
2. Find the vehicle's current
location and variance zone
number on the map.
Zones 1 through 15 are
available.
3. Press the set/reset button to
scroll through and select the
appropriate variance zone.
4. Press the trip/fuel button
until the vehicle heading, for
example, N for North, is
displayed in the DIC.
5. If calibration is necessary,
calibrate the compass. See
“Compass Calibration
Procedure” following.
Compass Calibration
The compass can be manually
calibrated. Only calibrate the
compass in a magnetically clean
and safe location, such as an open
parking lot, where driving the
vehicle in circles is not a danger.
It is suggested to calibrate away
from tall buildings, utility wires,
manhole covers, or other industrial
structures, if possible.
If CAL should ever appear in the
DIC display, the compass should be
calibrated.
If the DIC display does not show a
heading, for example, N for North,
or the heading does not change
after making turns, there may be a
strong magnetic field interfering with
the compass. Such interference
may be caused by a magnetic CB
or cell phone antenna mount, a
magnetic emergency light, magnetic