Compass: Adjustments

COMPASS VARIANCE ADJUSTMENT





Compass variance, also known as magnetic declination, is the difference in angle between magnetic north and true geographic north. In some geographic locations, the difference between magnetic and geographic north is great enough to cause the compass to give false readings. If this problem occurs, the compass variance must be set.

NOTE: If the vehicle is taken on long trips into a new variance zone the compass function may be effected. Compass variance will need to be updated to the new zone number to function properly.

NOTE: The default for the compass variance from the factory is 8.

NOTE: On vehicles equipped with an RER Navigational radio, manual variance calibration is not required, the compass variance setting is determined and automatically adjusted by the NAV system.





Manual Variance Calibration:

1. Using the Variance Settings Map, find your geographic location and note the zone number.
2. Turn the ignition switch to the ON/RUN position. Press and release the MENU push button (1) until "Personal Settings" is displayed.
3. Press the STEP push button (4) until "Compass Variance" is displayed.
4. Momentarily depress and release the RESET push button (3) to toggle through the zone numbers (1-15), until the zone number for your geographic location appears in the display.

NOTE: The default for the compass variance from the factory is 8. During programming, the Zone value will wrap around from Zone 15 to Zone 1.

5. Momentarily depress and release the C/T push button (2) to enter the displayed zone number into the compass unit memory.
6. Confirm that the correct directions are now indicated by the compass.