Cadillac 1998 Seville Owner's Manual page 109

When cleaning the mirror, use a paper towel or similar
material dampened with glass cleaner.
Do
not spray
glass cleaner directly
on
the mirror as that may cause the
liquid cleaner to enter the mirror housing.
Mirror Operation
The right side of the switch located at the bottom of the
mirror turns the electrochromic mirror on and
off. To
turn on the automatic dimming feature, press MIRROR.
To turn off automatic dimming, press MIRROR again.
The indicator light will be illuminated when this feature
is active.
Time Delay
The automatic mirror has a time delay feature which
prevents unnecessary switching from the night back
to
the day position. This delay prevents rapid changing of
the mirror as you drive under lights and through traffic.
Cleaning the Photocells
Use a cotton swab and glass cleaner to clean the
photocells when necessary.
Compass Operation
Press the COMPASS switch once to turn the compass on
or off.
When the ignition and the compass feature are on, the
compass will show two character boxes for
approximately two seconds. After two seconds, the
mirror will display the compass heading.
Compass Calibration
If, after two seconds, the display does not show a
compass heading
("N'
for North, for example), there
may be a strong magnetic field interfering with the
compass. Such interference may be caused by a
magnetic antenna mount, magnetic note pad holder or a
similar magnetic item. If the letter "C" should ever
appear in the compass window, the mirror
needs calibration.
The mirror can be calibrated in one of two ways:
Drive the vehicle in circles at 5 mph (8
km/h)
or less
Drive the vehicle on your everyday routine.
until the display reads a direction, or
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