Chevrolet 2003 Impala Owner's Manual page 172

MODE: Press this button to cycle through three modes
of operation
-
Off, Compassfiemperature and Trip
Computer mode.
Off: No driver information is displayed in this mode
of operation.
Compassll'emperature 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.
Trip Computer: 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.
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.
Setting the Variance
Turn the iunition on and cycle the DIC to the
Compassfiemperature 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
i s
shown. Press the RESET button to set
~
the new variance zone and resume normai operation.
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