FORD 2003 Taurus v.2 - Manual (Page 50)

The mirror will automatically return to the normal state whenever the
vehicle is placed in R (Reverse)(when the mirror is on) to ensure a
bright clear view when backing up.
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 changes in the
local magnetic field 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.
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Driver Controls
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