RAM 3500 Truck 2WD L6-5.9L DSL Turbo (2008)
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 may need to be
adjusted to the new zone number to function properly.
NOTE: The default for the compass variance from the factory is 8.
To set the compass variance:
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. If the compass/temperature data is not currently being displayed, momentarily depress and release
the C/T push button (5) to return to the compass/temperature display.
3. Press and hold the RESET push button (2) down for approximately five seconds. The last variance zone number will be displayed.
4. Momentarily depress and release the STEP push button (4) to toggle through the zone numbers (1-15), until the zone number for your geographic
location appears in the display.
5. Momentarily depress and release the RESET 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.
Manual Compass Calibration - EVIC
MANUAL COMPASS CALIBRATION
CAUTION: Do not place any external magnets, such as magnetic roof mount antennas, in the vicinity of the overhead console. Do not use
magnetic tools when servicing the overhead console.
