Automatic Dimming Rearview; Windows - GMC 2012 Terrain Owner's Manual

Automatic Dimming
Rearview Mirror
The vehicle may have an automatic
dimming inside rearview mirror.
Automatic dimming reduces the
glare from the headlamps of the
vehicle behind you. The dimming
feature comes on and the indicator
light comes on each time the vehicle
is started.
: Press to turn automatic
dimming on or off.
®
Vehicles with OnStar have three
additional control buttons located at
the bottom of the mirror. See your
dealer for more information on the
system and how to subscribe to
OnStar. See OnStar Overview on
page 14 1.
Cleaning the Mirror
Do not spray glass cleaner directly
on the mirror. Use a soft towel
dampened with water.

Windows

WARNING
Leaving children, helpless
adults, or pets in a vehicle
with the windows closed is
dangerous. They can be
overcome by the extreme heat
and suffer permanent injuries
or even death from heat stroke.
Never leave a child, a helpless
adult, or a pet alone in a vehicle,
especially with the windows
closed in warm or hot weather.
Keys, Doors, and Windows
The vehicle aerodynamics are
designed to improve fuel economy
performance. This may result in a
pulsing sound when either rear
window is down and the front
windows are up. To reduce the
sound, open either a front window
or the sunroof (if equipped).
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