2004 Chevrolet Impala Owner's Manual - Page 174

All the display segments will be illuminated briefly to acknowledge the change in zone number. A chime will sound to confirm that the new zone number has been set. 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. Turn the ignition on and cycle the DIC to the Compass/Temperature mode. Press the RESET button for at least 10 seconds until the calibration symbol appears and all segments of the compass display are illuminated. A chime will sound to confirm that the calibration mode is active. Release the button and complete two or three 360° turns in an area free from large metal objects. The calibration symbol will turn off and the compass reading will be displayed. A chime will sound to verify that the calibration is complete. 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 CAL will be displayed, and all segments of the compass will be illuminated where the compass reading is normally displayed. Error Displays • An error of the speed sensor or fuel sender will cause -E- to be displayed. • In the absence of vehicle communications, To calibrate the compass, in an area free from large metal objects, make one to two 360° turns. The calibration symbol will turn off and the compass reading will be displayed. a dash - - is displayed. If one of these error messages appear, see your dealer. 3-52