2001 Chevrolet Monte Carlo Owner's Manual - Page 170

MODE (Mode Button): Setting the Variance D Press this button to cycle through three modes of operation -- Off, Compass/Temperature and Trip Computer mode. D In the Trip Computer mode, pressing the MODE button cycles through the five displays. Press the MODE button after the last Trip Computer display to return the DIC to the OFF mode. Off: No driver information is displayed in this mode of operation. Compass/Temperature Mode: One of eight compass readings and the outside temperature are displayed. If the temperature is below 38_F (3_C), the word "ICE" is displayed for two minutes. 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 variance must be set. Turn the ignition on and cycle the DIC to the Compass/Temperature mode. Press the RESET button for approximately five seconds. The last entered variance zone number and "VAR" will be displayed. Press the MODE button until the proper variance number on the map is shown. Press the RESET button to set the new variance zone and resume normal operation. 2-98