Dodge Challenger 2013 Owner's Manual page 244

242 UNDERSTANDING YOUR INSTRUMENT PANEL
NOTE: Keep magnetic materials away from the top of
the instrument panel, such as iPod's, Mobile Phones,
Laptops 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.
Compass Variance Map
1. Turn the ignition switch ON.
2. Press and release the MENU button until Personal
Settings displays in the EVIC.
3. Press the UP or DOWN button until "COMPASS
VARIANCE" message and the last variance zone
number displays in the EVIC.
4. Press and release the SELECT button until the proper
variance zone is selected according to the map.
5. Press and release the MENU button to exit.