2010 Jeep Grand Cherokee Owner's Manual - Page 178

UNDERSTANDING YOUR INSTRUMENT PANEL 177 Manual Compass Calibration If the compass appears erratic and the "CAL" indicator does not appear in the EVIC display, you must put the compass into the Calibration Mode manually, as follows: Compass Variance Compass Variance is the difference between magnetic North and Geographic North. In some areas of the country, the difference between magnetic and geographic North is great enough to cause the compass to give false 1. Turn on the ignition switch. readings. For the most accurate compass performance, 2. Press the MENU button until Personal Settings the compass variance must be set using the following (Customer-Programmable Features) menu is reached. procedure: 3. Press the SCROLL button until "Calibrate Compass" is NOTE: Magnetic materials should be kept away from displayed in the EVIC. the Overhead console. This is where the compass sensor is located. 4. Press and release the FUNCTION SELECT button to start the calibration. The "CAL" indicator will be displayed in the EVIC. 5. Complete one or more 360-degree turns (in an area free from large metal or metallic objects) until the "CAL" indicator turns off. The compass will now function normally. 4