Lincoln 1997 Town Car Owner's Manual page 93

Mirrors
Automatic Dimming Inside Rearview
Mirror (If equipped)
The electronic day/night mirror will change from
the normal state to the non-glare state when bright
lights (glare) reach the mirror. This mirror functions
at night, and has a limited function at dusk or
dawn. From the non-glare state, the mirror will
return to the normal state after a short delay. The
delay starts when the glare goes away. The delay
prevents excessive changing of the mirror as traffic
moves behind and around the vehicle, or on rolling
hills and curves.
The automatic non-glare mirror
To turn the mirror on or off, push the On/Off
switch, located on the bottom of the mirror. The
switch will illuminate in the on position.
The electronic mirror measures the brightness of the
light coming in from the rear of the vehicle. It
automatically makes a correction in the glare state.
The mirror may be turned off in either the normal
or non-glare position.
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