Buick 2000 Century Owner's Manual page 114

Inside Day/Night Rearview Mirror
To reduce glare from headlamps behind you, pull the
lever at the bottom of the mirror toward you (to the
night position). To return the mirror back to the day
position, push the lever away from you.
Electrochromic Automatic Dimming
Rearview Mirror (If Equipped)
Your vehicle may have an electrochromic day/night
rearview mirror. Push the button in the center of the
mirror to turn this feature on. The mirror will darken
gradually to reduce glare from headlamps behind you.
This may take a few moments.
The mirror's two outer buttons operate the lights on the
bottom sides of the mirror.
One photocell on the front of the mirror senses when it
is becoming dark outside. Another photocell, facing
rearward, senses headlamps behind you. To turn the
electrochromic feature off, press the button in the center
of the mirror again.
To keep the photocells operating well, occasionally
clean them with a cotton swab and glass cleaner.
Power Outside Foldaway Mirrors
To choose either the left or right outside mirror, move
the top switch from left through neutral to right. Press
any of the four buttons located below the top switch to
move the mirrors in the desired direction.
The power mirror control
switches are located near
the driver's side window,
on the armrest.
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