Buick 2002 Regal Owner's Manual page 117

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.
Electrochromic Day/Night Rearview
Mirror with OnStar
(If Equipped)
Your vehicle may have an automatic electrochromic
day/night rearview mirror with the OnStar System.
The automatic dimming feature is turned on or off by
pressing the far left button, located on the lower part
of the mirror face, for up to three seconds. When
turned on, this mirror functions exactly like the
electrochromic mirror described previously. See
"Mirrors, Electrochromic Automatic Dimming"
listed previously in this section for more information.
R
and Map Lamps
2-53