Dodge 2009 Charger SRT8 Owner's Manual page 187

Compass Variance
Compass Variance is the difference between Magnetic
North and Geographic North. To compensate for the
differences, the variance should be set for the zone where
the vehicle is driven, per the zone map. Once properly
set, the compass will automatically compensate for the
differences, and provide the most accurate compass
heading. For the most accurate compass performance, the
compass must be set using the following steps.
NOTE: Keep magnetic materials away from the top of
the instrument panel, such as IPODs, Cell Phones, Lap-
tops and Radar Detectors. This is where the compass
module is located, and it can cause interference with the
compass sensor, and it may give false readings.
UNDERSTANDING YOUR INSTRUMENT PANEL 185
1. Turn the ignition switch ON.
2. Press and hold the compass button for approximately
two seconds.
3. Press the FUNCTION SELECT button until "Compass
Variance" message, and the last variance zone number,
displays in the EVIC.
4