GMC 2010 Acadia Owner's Manual page 251

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(Defrost): Press to turn the
defrost on or off. This mode quickly
clears the windshield of fog or frost.
Air is directed to the windshield,
side window, and floor vents. In this
mode, outside air is pulled inside
the vehicle. The air conditioning
system runs automatically in
this setting, unless the outside
temperature is less than 4°C (40°F).
Do not drive the vehicle until all the
windows are clear.
While in defrost mode, if the PASS
button is pressed, the PASS button
indicator flashes three times to
show that the passenger climate
control system cannot be activated.
If the passenger temperature
buttons are adjusted while in
defrost mode, the driver
temperature indicator will change.
The passenger temperature will
not be displayed.
When returning to bi-level, vent,
or floor mode, the previous
temperature settings displays in
place of any change made while
in defrost mode.
Climate Controls
Air Conditioning
#
(Air Conditioning): Press to
turn the air conditioning (A/C) on
and off. An indicator light comes
on when A/C is on.
The A/C does not work when
the outside temperature is below
#
4°C (40°F). If is pressed the
indicator flashes three times and
turns off to show that the A/C mode
is not available. If the A/C is on
and the outside temperature drops
below a temperature which is too
cool for air conditioning to be
effective, the A/C indicator turns
off to show that the A/C mode
has been canceled.
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