2011 GMC ACADIA air condition

Black plate (4,1)GMC Acadia/Acadia Denali Owner Manual - 2011
8-4 Climate Controls
For vehicles with heated outside
rearview mirrors, fog or frost is
cleared from the surface of the
mirror when
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 - 2011
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's 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 (7,1)GMC Acadia/Acadia Denali Owner Manual - 2011
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 - 2011
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.
<(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 (12,1)GMC Acadia/Acadia Denali Owner Manual - 2011
8-12 Climate Controls
N(Air Delivery Mode Control):
Press to manually change the
direction of the airflow. Repeatedly
press the button until the desired
mode appears on the display.
H(Vent): Air is directed through
the overhead outlets.
)(Bi-Level): Air is directed
through the rear floor outlets, as
well as the overhead outlets.
6(Floor): Air is directed through
the floor outlets. The rear system
floor outlets are located under the
third row seats.
Air Vents
Use the slider switch in the center of
the outlet, to change the direction
of the air flow. Use the thumbwheel
near the outlet to control the amount
of air flow or to shut off the airflow.
Keep all outlets open whenever
possible for best system
performance.
Operation Tips
.Clear away any ice, snow,
or leaves from the air inlets at
the base of the windshield that
can block the flow of air into the
vehicle.
.Use of non-GM approved hood
deflectors can adversely affect
the performance of the system.
.Keep the path under all seats
clear of objects to help circulate
the air inside the vehicle more
effectively.
.If fogging reoccurs while in
vent or bi-level modes with
mild temperature throughout
the vehicle, turn on the air
conditioner to reduce windshield
fogging.

Black plate (10,1)GMC Acadia/Acadia Denali Owner Manual - 2011
9-10 Driving and Operating
Blizzard Conditions
Being stuck in snow can be a
serious situation. Stay with the
vehicle unless there is help nearby.
If possible, use theRoadside
Assistance Program (U.S. and
Canada) on page 13‑8 orRoadside
Assistance Program (Mexico) on
page 13‑10. To get help and keep
everyone in the vehicle safe:
.Turn on the hazard warning
flashers.
.Tie a red cloth to an outside
mirror.
{WARNING
Snow can trap engine exhaust
under the vehicle. This may
cause exhaust gases to get
inside. Engine exhaust contains
Carbon Monoxide (CO) which
cannot be seen or smelled. It can
cause unconsciousness and even
death.
(Continued)
WARNING (Continued)
If the vehicle is stuck in the snow:
.Clear away snow from around
the base of your vehicle,
especially any that is blocking
the exhaust pipe.
.Check again from time to
time to be sure snow does
not collect there.
.Open a window about
5 cm (2 in) on the side of
the vehicle that is away from
the wind to bring in fresh air.
.Fully open the air outlets
on or under the instrument
panel.
.Adjust the climate control
system to a setting that
circulates the air inside
the vehicle and set the fan
speed to the highest setting.
See Climate Control System
in the Index.(Continued)
WARNING (Continued)
For more information about
carbon monoxide, see Engine
Exhaust on page 9‑24.
Snow can trap exhaust gases
under your vehicle. This can
cause deadly CO (Carbon
Monoxide) gas to get inside.
CO could overcome you and kill
you. You cannot see it or smell it,
so you might not know it is in your
vehicle. Clear away snow from
around the base of your vehicle,
especially any that is blocking the
exhaust.
Run the engine for short periods
only as needed to keep warm, but
be careful.

Black plate (32,1)GMC Acadia/Acadia Denali Owner Manual - 2011
9-32 Driving and Operating
When the traction control system
is turned off, the appropriate
TRACTION CONTROL OFF
message will be displayed on
the DIC. The vehicle will still
have brake-traction control when
traction control is off, but will not
be able to use the engine speed
management system. See“Traction
Control Operation” following for
more information.
When the traction control system
has been turned off, system noises
may be heard and felt as a result of
the brake-traction control working.
It is recommended to leave the
system on for normal driving
conditions, but it may be necessary
to turn the system off if the vehicle
is stuck in sand, mud, ice or snow,
and you want to “rock”the vehicle
to attempt to free it. It may also be
necessary to turn off the system
when driving in extreme off-road
conditions where high wheel spin
is required. See If the Vehicle is
Stuck on page 9‑11.Traction Control Operation
The traction control system is part
of the StabiliTrak system. Traction
control limits wheel spin by reducing
engine power to the wheels (engine
speed management) and by
applying the brakes as necessary.
The traction control system is
enabled automatically when the
vehicle is started. It will activate
and the StabiliTrak light will flash
if it senses that any of the wheels
are spinning or beginning to lose
traction while driving. If traction
control is turned off, only the
brake-traction control portion
of traction control will work.
The engine speed management
will be disabled. In this mode,
engine power is not reduced
automatically and the driven
wheels can spin more freely.
This can cause the brake-traction
control to activate constantly. Notice:
If the wheel(s) of one axle
is allowed to spin excessively
while the StabiliTrak®, ABS, brake
warning lights, and any relevant
DIC messages are displayed, the
transfer case could be damaged.
The repairs would not be covered
by the vehicle warranty. Reduce
engine power and do not spin
the wheel(s) excessively while
these lights and messages are
displayed.
The traction control system may
activate on dry or rough roads
or under conditions such as
heavy acceleration while turning or
abrupt upshifts/downshifts of the
transmission. When this happens,
a reduction in acceleration may be
noticed, or a noise or vibration may
be heard. This is normal.

Black plate (36,1)GMC Acadia/Acadia Denali Owner Manual - 2011
9-36 Driving and Operating
How the System Works
URPA comes on automatically
when the shift lever is moved into
R (Reverse). A single tone sounds
to indicate the system is working.
URPA operates only at speeds less
than 8 km/h (5 mph).
An obstacle is indicated by audible
beeps. The interval between the
beeps becomes shorter as the
vehicle gets closer to the obstacle.
When the distance is less than
30 cm (12 in) the beeps are
continuous.
To be detected, objects must be at
least 25.4 cm (10 in) off the ground
and below liftgate level. Objects
must also be within 2.5 m (8 ft) from
the rear bumper. This distance may
be less during warmer or humid
weather.
The system can be disabled through
the Driver Information Center (DIC).
See“Park Assist” underVehicle
Personalization (With DIC Buttons)
on page 5‑47 for more information.
When the System Does Not
Seem to Work Properly
If the URPA system does not
activate due to a temporary
condition, the message PARK
ASSIST OFF or PARK ASST
BLOCKED SEE OWNERS
MANUAL will be displayed
on the DIC.
SERVICE PARK ASSIST: If this
message occurs, take the vehicle
to your dealer to repair the system.
PARK ASSIST OFF: This message
occurs if the driver disables the
system.
PARK ASST BLOCKED SEE
OWNERS MANUAL: This
message can occur under the
following conditions:
.The ultrasonic sensors are not
clean. Keep the vehicle's rear
bumper free of mud, dirt, snow,
ice and slush. For cleaning
instructions, see Exterior Care
on page 10‑90.
.The park assist sensors are
covered by frost or ice. Frost or
ice can form around and behind
the sensors and may not always
be seen; this can occur after
washing the vehicle in cold
weather. The message may
not clear until the frost or ice
has melted.
.A trailer was attached to the
vehicle, or a bicycle or an
object was hanging out of the
liftgate during the last drive
cycle. Once the attached object
is removed, URPA will return
to normal operation.
.A tow bar is attached to the
vehicle.
.The vehicle's bumper is
damaged. Take the vehicle to
your dealer to repair the system.
.Other conditions may affect
system performance, such as
vibrations from a jackhammer or
the compression of air brakes on
a very large truck.