Manual Compass Calibration: Notes
Do not place any external magnets, such as magnetic roof mount antennas, in the vicinity of the Remote Compass Module (RCM) located at the top center of the instrument panel. Do not place any electronic devices (cell phones, laptop computers, Personal Digital Assistants (PDAs), portable DVD players, etc.) on or near the instrument panel as the RCM performance may be affected. Do not use magnetic tools when servicing the RCM.
Manual calibration is required anytime a new Remote Compass Module (RCM) is installed. Upon installation of the new RCM, the CAL (calibrate) message will appear in the instrument cluster display. The RCM will automatically calibrate if the vehicle is driven very slowly in two or more complete circles, away from large metal objects. The RCM can also be manually calibrated by performing the following procedure.
Confirmation that the proper variance zone is programmed is recommended whenever manual compass calibration is performed. Refer to MODULE, COMPASS, STANDARD PROCEDURE .
If the vehicle is equipped with a Chrysler Uconnect™ GPS (Navigation Radio), the navigation system will provide the compass direction, so the Variance and Calibration menus will be unavailable. The compass performs accurately based upon GPS signals rather than based upon the Earth's magnetic field.
The electronic compass unit features a self-calibrating design, which simplifies the calibration procedure. This feature automatically updates the compass calibration while the vehicle is being driven. This allows the compass unit to compensate for small changes in the residual magnetism that the vehicle may acquire during normal use. If the compass readings appear to be erratic or the CAL (calibrate) indicator is displayed, perform the appropriate manual calibration procedure. Also, any time a new RCM is installed, it must be manually calibrated using the appropriate procedure.