2011 GMC ACADIA air conditioning

Black plate (5,1)GMC Acadia/Acadia Denali Owner Manual - 2011
Introduction v
Vehicle Symbol Chart
Here are some additional symbols
that may be found on the vehicle
and what they mean. For more
information on the symbol, refer
to the Index.
9:Airbag Readiness Light
#:Air Conditioning
!:Antilock Brake System (ABS)
%:Audio Steering Wheel Controls
or OnStar®
$: Brake System Warning Light
":Charging System
I:Cruise Control
B: Engine Coolant Temperature
O:Exterior Lamps
#:Fog Lamps
.: Fuel Gauge
+:Fuses
3: Headlamp High/Low-Beam
Changer
j: LATCH System Child
Restraints
*: Malfunction Indicator Lamp
::Oil Pressure
g:Outside Power Foldaway
Mirrors
}: Power
/:Remote Vehicle Start
>:Safety Belt Reminders
7:Tire Pressure Monitor
_: Tow/Haul Mode
d:Traction Control/StabiliTrak
M:Windshield Washer Fluid

Black plate (14,1)GMC Acadia/Acadia Denali Owner Manual - 2011
1-14 In Brief
Windshield Washer
J:Press the button at the end
of the turn signal/lane change
lever to spray washer fluid on
the windshield.
Rear Window Wiper/Washer
The rear wiper and rear wash button
is located on the instrument panel
below the climate control system.
Z (Rear Wiper): Press to turn the
rear wiper on and off. The wiper
speed cannot be changed.
Y (Wash): Press to spray
washer fluid on the rear window.
The window wiper will also
come on.
See Windshield Wiper/Washer on
page 5‑5 andRear Window Wiper/
Washer on page 5‑6.
Climate Controls
A. Fan Control
B. Temperature Control
C. Air Delivery Mode Control
D. Air Conditioning E. REAR (Rear Climate Control)
F. Air Recirculation
G. Rear Window Defogger

Black plate (15,1)GMC Acadia/Acadia Denali Owner Manual - 2011
In Brief 1-15
Dual Automatic Climate Control
System
A. Fan Control
B. AUTO (Auto Operation)
C. Defrost
D. Air 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
See Climate Control Systems on
page 8‑1 orDual Automatic
Climate Control System on page 8‑4
(If Equipped). For more information
about the rear climate control, 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.
Transmission
Electronic Range Select
(ERS) Mode
ERS mode allows you to choose the
top-gear limit of the transmission
and the vehicle's speed while
driving down hill or towing a trailer.
The vehicle has an electronic
shift position indicator within the
instrument panel cluster. When
using the ERS Mode a number will
display next to the L, indicating the
current gear that has been selected.
To use this feature:
1. Move the shift lever to L (Low).
2. Press the plus/minus button located on the shift lever, to
increase or decrease the gear
range available.
See Manual Mode on page 9‑27.

Black plate (39,1)GMC Acadia/Acadia Denali Owner Manual - 2011
Instruments and Controls 5-39
PASSENGER DOOR OPEN
This message displays and a chime
sounds if the passenger door is
not fully closed and the vehicle is
shifted out of P (Park). Stop and turn
off the vehicle, check the door for
obstructions, and close the door
again. Check to see if the message
still appears on the DIC.
POWER LIFTGATE OFF
This message displays when the
power liftgate has been turned off
by pressing the power liftgate button
on the center console.
RIGHT REAR DOOR OPEN
This message displays and a chime
sounds if the passenger side rear
door is not fully closed and the
vehicle is shifted out of P (Park).
Stop and turn off the vehicle, check
the door for obstructions, and close
the door again. Check to see if the
message still appears on the DIC.
Engine Cooling System
Messages
ENGINE HOT A/C
(Air Conditioning) OFF
This message displays when the
engine coolant becomes hotter than
the normal operating temperature.
SeeEngine Coolant Temperature
Gauge on page 5‑14. To avoid
added strain on a hot engine,
the air conditioning compressor
automatically turns off. When
the coolant temperature returns
to normal, the air conditioning
compressor turns back on.
You can continue to drive
your vehicle.
If this message continues to appear,
have the system repaired by your
dealer as soon as possible to avoid
damage to the engine.
ENGINE OVERHEATED IDLE
ENGINE
Notice: If you drive the vehicle
while the engine is overheating,
severe engine damage may
occur. If an overheat warning
appears on the instrument panel
cluster and/or DIC, stop the
vehicle as soon as possible.
Do not increase the engine
speed above normal idling speed.
See Engine Overheating on
page 10‑19 for more information.
This message displays when the
engine coolant temperature is too
hot. Stop and allow the vehicle to
idle until it cools down. See Engine
Coolant Temperature Gauge on
page 5‑14.
See Overheated Engine Protection
Operating Mode on page 10‑22 for
information on driving to a safe
place in an emergency.

Black plate (43,1)GMC Acadia/Acadia Denali Owner Manual - 2011
Instruments and Controls 5-43
SERVICE TRACTION
CONTROL
This message displays when there
is a problem with the Traction
Control System (TCS). When this
message is displayed, the system
will not limit wheel spin. Adjust your
driving accordingly. See your dealer
for service. SeeStabiliTrak
®System
on page 9‑31 for more information.
TRACTION CONTROL OFF
This message displays when the
Traction Control System (TCS)
is turned off. Adjust your driving
accordingly. See StabiliTrak
®
System on page 9‑31 for more
information. This message clears
itself after 10 seconds.
TRACTION CONTROL ON
This message displays when the
Traction Control System (TCS) is
turned on. See StabiliTrak
®System
on page 9‑31 for more information.
This message clears itself after
10 seconds.
Airbag System Messages
SERVICE AIR BAG
This message displays if there is a
problem with the airbag system.
Have your dealer inspect the
system for problems. See Airbag
Readiness Light on page 5‑15 and
Airbag System on page 3‑33 for
more information.
Anti-Theft Alarm System
Messages
SERVICE THEFT DETERRENT
SYSTEM
This message displays when there
is a problem with the theft-deterrent
system. The vehicle may or may not
restart so you may want to take the
vehicle to your dealer before turning
off the engine. See Immobilizer
Operation on page 2‑15 for more
information.
THEFT ATTEMPTED
This message displays if the
content theft-deterrent system has
detected a break-in attempt while
you were away from your vehicle.
See Anti-Theft Alarm System on
page 2‑13 for more information.
Service Vehicle Messages
SERVICE A/C
(Air Conditioning)
SYSTEM
This message displays when the
electronic sensors that control
the air conditioning and heating
systems are no longer working.
Have the climate control system
serviced by your dealer if you
notice a drop in heating and air
conditioning efficiency.

Black plate (1,1)GMC Acadia/Acadia Denali Owner Manual - 2011
Climate Controls 8-1
Climate Controls
Climate Control Systems
Climate Control Systems . . . . . . 8-1
Dual Automatic Climate ControlSystem . . . . . . . . . . . . . . . . . . . . . . 8-4
Rear Climate Control System (Rear Climate
Control Only) . . . . . . . . . . . . . . . 8-10
Rear Climate Control System (Rear Climate with
Rear Seat Audio) . . . . . . . . . . . 8-11
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . 8-12
Maintenance
Passenger Compartment AirFilter . . . . . . . . . . . . . . . . . . . . . . . 8-13
Climate Control Systems
The heating, cooling, and ventilation in the vehicle can be controlled with
this system.
A. Fan Control
B. Temperature Control
C. Air Delivery Mode Control
D. Air Conditioning
E. REAR (Rear Climate Control)
F. Recirculation
G. Rear Window Defogger9(Off): Turn the fan control all the
way counterclockwise to turn the
front climate control system off.
9(Fan Control): Turn clockwise
or counterclockwise to increase or
decrease the fan speed.

Black plate (2,1)GMC Acadia/Acadia Denali Owner Manual - 2011
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 towards 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 the 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.

Black plate (3,1)GMC Acadia/Acadia Denali Owner Manual - 2011
Climate Controls 8-3
For quicker cool down on hot days:
1. Open the windows to let hot airescape.
2. Select
Hmode.
3. Select
#.
4. Select the coolest temperature.
5. Select the highest fan speed.
6. Close the windows after the hot 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
of 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 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
automatically turning off.
The defogger will also turn off
when the engine is turned off.
Do not drive the vehicle until all the
windows are clear.