2013 Jeep Grand Cherokee Owner's Manual - Page 338
2013 Jeep Grand Cherokee Manual
Page 338 highlights
336 UNDERSTANDING YOUR INSTRUMENT PANEL NOTE: Under certain conditions, the display may be superseded by another display of higher priority. But when the ignition switch position is changed, the display always re-appears. Compass / Temperature Display new, the compass may appear erratic and the EVIC will display CAL until the compass is calibrated. You may also calibrate the compass by completing one or more 360-degree turns (in an area free from large metal or metallic objects) until the CAL indicator displayed in the EVIC turns off. The compass will now function normally. The compass readings indicate the direction the vehicle is NOTE: A good calibration requires a level surface and an facing. The EVIC will display one of eight compass environment free from large metallic objects such as buildreadings and the outside temperature. ings, bridges, underground cables, railroad tracks, etc. NOTE: The system will display the last known outside Compass Variance temperature when starting the vehicle and may need to be driven several minutes before the updated tempera- Compass Variance is the difference between Magnetic ture is displayed. Engine temperature can also affect the North and Geographic North. To compensate for the displayed temperature; therefore, temperature readings differences the variance should be set for the zone where the vehicle is driven, per the zone map. Once properly are not updated when the vehicle is not moving. set, the compass will automatically compensate for the Automatic Compass Calibration differences, and provide the most accurate compass This compass is self-calibrating, which eliminates the heading. For the most accurate compass performance, the need to manually reset the compass. When the vehicle is compass must be set using the following steps.
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