2002 Ford Crown Victoria Owner's Manual - Page 77

Driver Controls Electronic compass (if equipped) The compass reading will remain accurate during most driving conditions. Unknown to the driver, the compass is continuously recalibrating due to magnetic fields and subtle, slow changes in vehicle magnetics which can occur over the life of the vehicle. The compass reading will remain fixed when significant levels are experienced (such as steel bridges). The compass will return to normal operation upon leaving the magnetized area. If highly magnetized items (such as magnetic mount antennas) are placed very near the compass the display will change to "C" for 15 seconds, then display all segments until the magnetized item is removed. If a "C" is displayed, refer to Compass calibration adjustment. Most geographic areas (zones) have a magnetic north compass point that varies slightly from the northerly direction on maps. This variation is four degrees between adjacent zones and will become noticeable as the vehicle crosses multiple zones. A correct zone setting will eliminate this error. Refer to Compass zone adjustment. Compass zone adjustment 1. Determine which compass zone you are in by referring to the zone map. 2. Turn the ignition to the ON/RUN position. 3. With the compass display turned on, press and hold the COMP side of NW the control for no more than six seconds until the zone selection number appears in the mirror display window. If a "C" appears repeat this step. 4. Release the COMP side of the control, then press it down again. 5. Continue to press until your zone number is shown in the mirror display, then release. COMP MIRROR 77