2012 GMC ACADIA climate control

Black plate (2,1)GMC Acadia/Acadia Denali Owner Manual - 2012
8-2 Climate Controls
Temperature Control:Turn
clockwise or counterclockwise
to increase or decrease the
temperature of the air flowing
from the system.
Air Delivery Mode Control:
Turn clockwise or counterclockwise
to change the current airflow mode.
By positioning the right knob
between two modes, a combination
of those two modes is selected.
H(Vent): Air is directed to the
instrument panel outlets.
)(Bi-Level): Air is divided
between the instrument panel and
floor outlets. Some air is directed
toward the windshield and side
window outlets. Cooler air is
directed to the upper outlets and
warmer air to the floor outlets.
6(Floor): Air is directed to the
floor outlets, with some of the air
directed to the windshield, side
window, and second row floor outlets. In this mode, the system
automatically selects outside air.
Recirculation cannot be selected
while in floor mode.
-(Defog):
This clears the
windows of fog or moisture. Air is
directed to the windshield, floor
outlets, and side window vents.
When this mode is selected, the
system turns off recirculation and
runs the air conditioning unless the
outside temperature is less than
4°C (40°F). Recirculation cannot be
selected while in the defog mode.
Do not drive the vehicle until all the
windows are clear.
0(Defrost): This clears the
windshield of fog or frost more
quickly. Air is directed to the
windshield and side window vents,
with some to the floor vents. In this
mode, outside air is pulled inside
the vehicle. Recirculation cannot be
selected while in the defrost mode. 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 windows are clear.
#(Air Conditioning):
Press to
turn the air conditioning system
on or off. An indicator light
comes on when A/C is on.
The air conditioning system does
not operate when the outside
temperature is below 4°C (40°F).
The indicator light flashes three
times and turns off when outside
conditions affect air conditioning
operation. This is normal.
For quicker cool down on hot days:
1. Open the windows to let hot air escape.
2. Select
Hmode.
3. Select
#.
4. Select the coolest temperature.

Black plate (3,1)GMC Acadia/Acadia Denali Owner Manual - 2012
Climate Controls 8-3
5. Select the highest fan speed.
6. Close the windows after thehot air has escaped.
7. Once the vehicle's interior temperature is below the outside
temperature, select
@mode
for faster cooling.
Using recirculation for long periods
of time could cause the air inside
the vehicle to become too dry.
To prevent this from happening,
after the inside of the vehicle has
cooled, turn the recirculation
mode off.
The air conditioning system
removes moisture from the air, so
water might drip under the vehicle
while idling or after turning off the
engine. This is normal.
@(Recirculation): Press to turn
the recirculation mode on or off.
An indicator light comes on when
recirculation is on. When the engine
is turned off, the recirculation mode
automatically turns off and must be
re‐selected when the engine is
turned on again.
This mode recirculates and helps
to quickly cool the air inside the
vehicle. It can be used to prevent
outside air and odors from entering
the vehicle.
The recirculation mode cannot be
used with floor, defrost, or defogging
modes. If recirculation is selected in
these modes, the indicator flashes
three times and turns off. The air
conditioning also comes on when
this mode is activated unless the
outside air temperature is less than
4°C (40°F). While in recirculation
mode the windows can fog when
the weather is cold and damp. To clear the fog, select either the
defog or defrost mode and increase
the fan speed.
REAR (Rear Climate Control):
Press to turn the rear heating and
air conditioning on or off. See
Rear
Climate Control System (Rear
Climate Control Only) on page 8‑10
or Rear Climate Control System
(Rear Climate with Rear Seat Audio)
on page 8‑11.
Rear Window Defogger
The rear window defogger uses a
warming grid to remove fog from
the rear window.
1(Rear Window Defogger):
Press to turn the rear window
defogger on or off. The rear window
defogger stays on for about
10 minutes, before automatically
turning off. The defogger will
also turn off when the engine is
turned off.

Black plate (4,1)GMC Acadia/Acadia Denali Owner Manual - 2012
8-4 Climate Controls
Do not drive the vehicle until all
windows are clear.
For vehicles with heated outside
rearview mirrors, fog or frost is
cleared from the surface of the
mirror when
1is pressed.
Notice: Do not use anything
sharp on the inside of the rear
window. If you do, you could cut
or damage the warming grid, and
the repairs would not be covered
by the vehicle warranty. Do not
attach a temporary vehicle
license, tape, a decal, or anything
similar to the defogger grid.
Dual Automatic Climate Control System
The heating, cooling, and ventilation in the vehicle can be controlled with
this system.
A. Fan Control
B. AUTO (Automatic Operation)
C. Defrost
D. Recirculation
E. REAR (Rear Climate Control)
F. Air Delivery Mode Control
G. Driver Side Temperature Control H. Display
I. Power (On/Off)
J. Rear Window Defogger
K. Air Conditioning
L. PASS (Passenger)
M. Passenger Side Temperature
Control

Black plate (5,1)GMC Acadia/Acadia Denali Owner Manual - 2012
Climate Controls 8-5
Display Function
Each time the temperature, mode,
or fan control buttons are pressed,
the climate control display shows
that function along with the inside
temperature setting. The outside
temperature is displayed on the
instrument panel cluster.
O(On/Off):Press to turn the
climate control system on or off.
While the system is off, outside air
still enters through the floor outlets,
but the air delivery mode can be
adjusted.
The climate control system will also
turn on if either the fan control,
defrost, AUTO, or air conditioning
buttons are pressed.
Automatic Operation
AUTO (Automatic): The system
automatically controls the inside
temperature, the air delivery, and
the fan speed. To use automatic mode:
1. Press the AUTO button.
When AUTO is selected, the
current temperature(s) selected
and AUTO is shown on the
display. The current air delivery
mode and fan speed also
appear for approximately
five seconds.
When AUTO is selected,
the air conditioning and air inlet
are automatically controlled.
The air conditioning runs when
the outside temperature is over
4°C (40°F). The system is
automatically set to outside air,
unless it is hot outside and
then the air inlet changes to
recirculation mode to help
quickly cool the vehicle.
The recirculation indicator light
will come on. 2. Set the temperature for the
driver and passenger.
To find a comfortable setting,
start with a 22°C (73°F)
temperature setting and allow
about 20 minutes for the
system to regulate. Use the
driver side or passenger side
temperature buttons to adjust
the temperature setting as
necessary. The system will
remain at the selected setting.
Choosing the warmest or coolest
temperatures does not cause
the vehicle to heat or cool more
quickly.
To avoid blowing cold air in
cold weather, the system delays
turning on the fan until warm air
is available. Press the fan
control to override this delay
and select the fan speed.

Black plate (6,1)GMC Acadia/Acadia Denali Owner Manual - 2012
8-6 Climate Controls
Temperature Control
The driver and passenger side
temperature buttons are used to
adjust the temperature of the air
coming through the system. The
temperature can be adjusted even
if the system is turned off since
outside air still enters the vehicle,
unless the recirculation mode is
selected. See“Recirculation” later
in this section.
Driver Side Temperature
Control: Press the + or −buttons
to increase or decrease the driver
side temperature. The driver side
temperature display will show the
temperature setting.
Passenger Side Temperature
Control: Press the + or −buttons
to increase or decrease the
passenger side temperature.
The passenger side display will
show the temperature setting. PASS (Passenger):
Press to set
the passenger temperature to match
the driver temperature setting.
The PASS indicator will turn off.
When the passenger temperature
setting is different than the driver
setting, the PASS indicator
comes on.
Manual Operation
The air delivery mode or fan speed
can be manually adjusted.
D/C(Fan Control): Press to
increase or decrease the fan speed.
Pressing
DorCwhile in automatic
control places the fan speed under
manual control.
The air delivery mode remains in
automatic control. The fan setting
still displays, but the word AUTO
no longer displays, and the AUTO
button indicator light turns off.
H/G(Air Delivery Mode
Control): Press to change the
direction of the airflow in the vehicle.
Repeatedly press
HorGuntil the
desired mode appears on the
display. Pressing a mode button
while the system is off changes the
air delivery mode without turning the
system on. Press a mode button
while in automatic control to place
the system into manual control.
The air delivery mode setting still
displays, but the word AUTO no
longer displays, and the AUTO
button indicator light turns off.
H(Vent): Air is directed to the
instrument panel outlets.
)(Bi-Level): Air is divided
between the instrument panel and
floor outlets. Some air is directed
towards the windshield and side
window outlets. Cooler air is
directed to the upper outlets and
warmer air to the floor outlets.

Black plate (7,1)GMC Acadia/Acadia Denali Owner Manual - 2012
Climate Controls 8-7
6(Floor):Air is directed to the
floor outlets, with some of the air
directed to the windshield, side
window, and second row floor
outlets. In this mode, the system
uses outside air.
-(Defog): This mode clears the
windows of fog or moisture. Air is
directed to the windshield, floor
outlets, and side window vents.
When this mode is selected, the
system turns off recirculation and
runs the air conditioning compressor
unless the outside temperature is
less than 4°C (40°F). Do not drive
the vehicle until all the windows
are clear.
0(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.
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.
On hot days, open the windows
briefly to let hot inside air escape.
This helps reduce the time it takes
for the interior of the vehicle to
cool down.

Black plate (8,1)GMC Acadia/Acadia Denali Owner Manual - 2012
8-8 Climate Controls
The air conditioning system
removes moisture from the air, so
water might drip under the vehicle
while idling or after turning off the
engine. This is normal.
@(Recirculation):Press to turn
the recirculation mode on or off.
An indicator light comes on when
recirculation is on. When the engine
is turned off, the recirculation mode
automatically turns off and must be
re‐selected when the engine is
turned on again.
This mode recirculates and helps
to quickly cool the air inside the
vehicle. It can be used to prevent
outside air and odors from entering
the vehicle.
The recirculation mode cannot be
used with floor, defog, or defrosting
modes. If recirculation is selected
in these modes, the indicator
flashes three times and turns off. The air conditioning compressor
also comes on when this mode is
activated. While in recirculation
mode the windows can fog when
the weather is cold and damp.
To clear the fog, select either the
defog or defrost mode and increase
the fan speed.
REAR:
Press to turn the rear
heating and air conditioning on or
off. See Rear Climate Control
System (Rear Climate Control Only)
on page 8‑10 orRear Climate
Control System (Rear Climate with
Rear Seat Audio) on page 8‑11.
Rear Window Defogger
The rear window defogger uses a
warming grid to remove fog from the
rear window.
1(Rear Window Defogger):
Press to turn the rear window
defogger on or off. The rear window
defogger stays on for about
10 minutes, before turning off.
The defogger also turns off when
the engine is turned off. Do not drive
the vehicle until all the windows
are clear.
For vehicles with heated outside
rearview mirrors, fog or frost is
cleared from the surface of the
mirror when the rear window defog
button is pressed.
Notice: Do not use a razor blade
or sharp object to clear the inside
rear window. Do not adhere
anything to the defogger grid
lines in the rear glass. These
actions may damage the rear
defogger. Repairs would not be
covered by your warranty.

Black plate (9,1)GMC Acadia/Acadia Denali Owner Manual - 2012
Climate Controls 8-9
Sensors
The solar sensor, located in the
defrost grille in the middle of the
instrument panel, monitors the solar
heat. Do not cover the solar sensor
or the system will not work properly.The interior temperature sensor
located on the instrument panel to
the right of the steering column,
measures the temperature of the
air inside the vehicle.There is also an exterior
temperature sensor located behind
the front grille. This sensor reads
the outside air temperature and
helps maintain the temperature
inside the vehicle. Any cover on the
front of the vehicle could cause a
false reading in the displayed
temperature.
The climate control system uses the
information from these sensors to
maintain comfort settings by
adjusting the temperature, fan
speed, and air delivery mode.
The system may also supply cooler
air to the side of the vehicle facing
the sun. The recirculation mode will
also be used as needed to maintain
cool outlet temperatures.