1999 Pontiac Montana Owner's Manual - Page 198

yellowblue D MODE (Mode Button): Press this button to cycle through three modes of operation -- Off, Compass/Temperature and Trip Computer mode. 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 temperature reading will toggle between displaying the outside temperature and the word "ICE" for two minutes. Setting the Variance 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. 2-102