GM Service Manual Online
For 1990-2009 cars only

Object Number: 806264  Size: B1

If your vehicle is equipped with the Driver Information Center (DIC), the display is located on the instrument panel cluster directly above the steering column. The DIC will show information about the vehicle and the surroundings.

The DIC has a compass display to show you which direction the vehicle is driving.

Compass Variance

Compass variance is the difference between magnetic north and geographic north. In some areas of the country, the difference is great enough to cause the compass to give false readings. If this occurs, the compass must be set.

Automatic Compass Calibration

The compass is self-calibrating, which eliminates the need to manually set the compass. When the vehicle is new, the calibration process may not be complete. In these cases, the calibration symbol C will be displayed where the compass reading is normally displayed.

To calibrate the compass, in an area free from large metal objects, make three 360 degree turns. The calibration symbol will turn off and the compass reading will be displayed.

Manual Compass Calibration

If the compass appears erratic and the calibration symbol does not appear, you must manually put the compass into the calibration mode. To get into this mode, do the following:

  1. Turn the ignition on and cycle the DIC to the compass/temperature mode.
  2. Press and hold the SET button for longer then three seconds.

Object Number: 808475  Size: B4
ZONE # PRESS & HOLD SET TO CHANGE: This display mode will be displayed when you are manually calibrating the system. The current zone number for compass variance will be displayed in place of the # symbol. Use the SET button to select the zone number from the graphic shown to select the current area of the country that you are driving in.

PRESS SET TO CALIBRATE COMPASS: After selecting your zone, press the MODE button and this will be displayed on the DIC. Press the SET button and complete three 360 degree turns in an area free from large metal objects.

The following two messages will toggle in the display until you calibrate the compass:

    • DRIVE VEHICLE IN CIRCLE
    • CALIBRATING COMPASS

When calibration is complete, the display will return to its normal mode.