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To Set the Variance
NOTE: Refer to the “Compass Variance Map” in the
following “Electronic Vehicle Information Center
(EVIC)” section for your Zone Value.
Start the engine, and leave the transmission gear selector
lever in the PARK position. Press and hold (approxi-
mately ten seconds) the CMTC reset button until the
current variance zone number is displayed. To change the
zone, press and release the CMTC reset button to incre-
ment the variance one step. Repeat as necessary, until the
desired variance is achieved.
NOTE: The factory default Zone is 8. During program-
ming, the zone value will wrap around from Zone 15 to
Zone 1.
Manual Compass Calibration
If the compass appears erratic, inaccurate or abnormal,
you may wish to calibrate the compass. Prior to calibrat-
ing the compass make sure the proper zone is selected.
1. Start the engine, and leave the transmission in the
PARK position.
2. Press and hold (approximately 10 seconds) the CMTC
reset button until the current variance zone number is
displayed.
3. Release the CMTC reset button, then press and hold
again (approximately 10 seconds), until the direction is
displayed with the CAL indicator on continuously in the
display.
4. To complete the compass calibration, drive the vehicle
in one or more complete 360 degree circles under 5 mph
(8 km/h) in an area free from power lines, large metallic
objects, until the CAL indicator turns off. The compass
will now function normally.
242 UNDERSTANDING YOUR INSTRUMENT PANEL
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