Jeep Wrangler 2013 Owner's Manual page 335

Compass Variance Map
UNDERSTANDING YOUR INSTRUMENT PANEL 333
To Change The Compass Variance:
1. Turn the ignition switch RUN (it is not necessary to
start the engine).
2. Press the MENU button until Personal Settings
(Customer-Programmable Features) displays in the
EVIC.
3. Press the 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 COMPASS button to exit.
4