
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 (11,1)GMC Acadia/Acadia Denali Owner Manual - 2012
Climate Controls 8-11
Rear Climate Control System (Rear Climate with Rear
Seat Audio)
A. Fan Control
B. Air Delivery Mode Control
C. Temperature Control
For vehicles with the rear climate
control system, the controls are
located on the rear of the center
console.Press the REAR button on the
front climate control system to turn
the rear climate control system on
or off. The system also turns on if
any of the rear controls, except
C,
are pressed. An indicator comes on
when the rear system is on.
The system can also be turned off,
by pressing and holding
C. Mimic Mode:
This mode matches
the rear climate control to the front
climate control settings. It comes on
when REAR is pressed.
Independent Mode: This mode
directs rear seating airflow
according to the settings of the
rear controls. It comes on when
any rear control is adjusted.
DandC(Fan Control): Press the
fan up or down buttons to increase
or decrease the fan speed.
Temperature Control: Press +
or −to increase or decrease
the air temperature. The
temperature settings will display
in 0‐12 increments, going from the
coolest (0) to the warmest (12)
setting.

Black plate (20,1)GMC Acadia/Acadia Denali Owner Manual - 2012
9-20 Driving and Operating
Retained Accessory
Power (RAP)
These vehicle accessories can be
used for up to 10 minutes after the
ignition key is turned off:
.Audio System
.Power Windows
.Sunroof (if equipped)
Power to the windows and sunroof
will work up to 10 minutes or until a
door is opened.
The radio continues to work for
10 minutes or until the driver door
is opened.
For an additional 10 minutes of
operation, close all the doors and
turn the key to ON/RUN and then
back to LOCK/OFF.
All these features will work when
the key is in the ON/RUN or
ACC/ACCESSORY positions.
Shifting Into Park
{WARNING
It can be dangerous to get out of
the vehicle if the shift lever is not
fully in P (Park) with the parking
brake firmly set. The vehicle can
roll. If you have left the engine
running, the vehicle can move
suddenly. You or others could be
injured. To be sure the vehicle will
not move, even when you are on
fairly level ground, use the steps
that follow. If you are pulling a
trailer, see Driving Characteristics
and Towing Tips on page 9‑45.
1. Hold the brake pedal down and set the parking brake.
See Parking Brake on page 9‑28
for more information.
2. Move the shift lever into P (Park) by holding in the button on the
shift lever and pushing the shift
lever all the way toward the front
of the vehicle. 3. Turn the ignition key to
LOCK/OFF.
4. Remove the key and take it with you. If you can leave the vehicle
with the ignition key in your
hand, the vehicle is in P (Park).
Leaving the Vehicle with the
Engine Running
{WARNING
It can be dangerous to leave the
vehicle with the engine running.
The vehicle could move suddenly
if the shift lever is not fully in
P (Park) with the parking brake
firmly set. And, if you leave the
vehicle with the engine running,
it could overheat and even catch
fire. You or others could be
injured. Do not leave the vehicle
with the engine running.

Black plate (1,1)GMC Acadia/Acadia Denali Owner Manual - 2012
INDEX i-1
A
Accessories andModifications . . . . . . . . . . . . . . . . . 10-3
Accessory Power . . . . . . . . . . . . . . 9-20
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . . . 9-53
Additional Information,
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 14-5
Adjustments Lumbar, Front Seats . . . . . . . . . . . 3-4
Air Cleaner/Filter, Engine . . . . . 10-12
Air Filter, Passenger
Compartment . . . . . . . . . . . . . . . . 8-13
Air Vents . . . . . . . . . . . . . . . . . . . . . . 8-12
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . 3-37
How Does an Airbag
Restrain? . . . . . . . . . . . . . . . . . . . 3-29
Passenger Sensing System . . . . . . . . . . . . . . . . . . . . . . 3-31
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-29 Airbag System (cont'd)
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . 3-29
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-27
Where Are the Airbags? . . . . . . 3-26
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . 3-36
Passenger Status Indicator . . . 5-17
Readiness Light . . . . . . . . . . . . . . 5-16
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . 3-35
System Check . . . . . . . . . . . . . . . . 3-24
Alarm System Anti-theft . . . . . . . . . . . . . . . . . . . . . . 2-13
All-Wheel Drive . . . . . . . . . 9-27, 10-26
AM-FM Radio . . . . . . . . . . . . . . . . . . . 7-7
Antenna Multi-band . . . . . . . . . . . . . . . . . . . . 7-13
Anti-theft Alarm System . . . . . . . . . . . . . . . . 2-13
Alarm System Messages . . . . . 5-42 Antilock Brake
System (ABS) . . . . . . . . . . . . . . . . 9-27
Warning Light . . . . . . . . . . . . . . . . . 5-22
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . 10-86
Interior . . . . . . . . . . . . . . . . . . . . . . 10-89
Armrest Storage . . . . . . . . . . . . . . . . 4-2
Assistance Program,
Roadside . . . . . . . . . . . . . . 13-8, 13-10
Audio Controller, Rear (RAC) . . . . . . . . . . . . . . . . . . 7-48
Audio Players . . . . . . . . . . . . . . . . . 7-13 CD . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13
CD/DVD . . . . . . . . . . . . . . . . . . . . . . 7-15
MP3 . . . . . . . . . . . . . . . . . . . . 7-23, 7-29
Audio System
Radio Reception . . . . . . . . . . . . . . 7-12
Rear Seat (RSA) . . . . . . . . . . . . . 7-47
Theft-Deterrent Feature . . . . . . . . 7-2
Automatic Dimming Mirrors . . . . . . . . . . . . . . 2-18
Door Locks . . . . . . . . . . . . . . . . . . . . 2-9
Transmission . . . . . . . . . . . . . . . . . 9-23
Transmission Fluid . . . . . . . . . 10-12

Black plate (9,1)GMC Acadia/Acadia Denali Owner Manual - 2012
INDEX i-9
Pregnancy, Using SafetyBelts . . . . . . . . . . . . . . . . . . . . . . . . . 3-22
Privacy Radio FrequencyIdentification (RFID) . . . . . . . 13-22
Program Courtesy Transportation . . . . 13-14
Proposition 65 Warning, California . . . . . . . . . . . . . . . . . . . . . 10-3
R
Radio FrequencyIdentification (RFID) . . . . . . . . 13-22
Statement . . . . . . . . . . . . . . . . . . 13-22
Radios AM-FM Radio . . . . . . . . . . . . . . . . . . 7-7
CD/DVD Player . . . . . . . . . . . . . . . 7-15
Reception . . . . . . . . . . . . . . . . . . . . 7-12
Satellite . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Reading Lamps . . . . . . . . . . . . . . . . . 6-6
Rear Audio Controller (RAC) . . . . . . . . . . . . . 7-48
Rear Climate Control
System . . . . . . . . . . . . . . . . . 8-10, 8-11
Rear Seat Audio (RSA) System . . . . . . . . . . . . . . . . . . . . . . . 7-47 Rear Seat Entertainment
System . . . . . . . . . . . . . . . . . . . . . . . 7-38
Rear Seat Audio (RSA) . . . . . . . 7-47
Rear Seats . . . . . . . . . . . . . . . . . . . . 3-10
Rear Vision Camera (RVC) . . . . 9-35
Rear Window Washer/Wiper . . . . 5-6
Rearview Mirrors . . . . . . . . . . . . . . 2-19 Automatic Dimming . . . . . . . . . . . 2-20
Reclining Seatbacks . . . . . . . . . . . . 3-5
Recommended Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 9-40
Recommended Fluids and Lubricants . . . . . . . . . . . . . . . . . . . 11-12
Records Maintenance . . . . . . . . . . . . . . . . .11-14
Recreational Vehicle
Towing . . . . . . . . . . . . . . . . . . . . . . 10-82
Reimbursement Program, GM Mobility . . . . . . . . . . . . . . . . . . 13-8
Remote Keyless Entry (RKE) System . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Remote Vehicle Start . . . . . . . . . . . 2-5
Replacement Bulbs . . . . . . . . . . . 10-29
Replacement Parts Airbags . . . . . . . . . . . . . . . . . . . . . . . 3-37
Maintenance . . . . . . . . . . . . . . . . .11-13 Replacing Airbag System . . . . . . 3-37
Replacing LATCH System
Parts after a Crash . . . . . . . . . . . 3-53
Replacing Safety Belt System Parts after a Crash . . . 3-23
Reporting Safety Defects Canadian Government . . . . . . 13-20
General Motors . . . . . . . . . . . . . 13-20
U.S. Government . . . . . . . . . . . 13-19
Restraints Where to Put . . . . . . . . . . . . . . . . . 3-44
Retained Accessory Power (RAP) . . . . . . . . . . . . . . . . . 9-20
Ride Control Systems Messages . . . . . . . . . . . . . . . . . . . . 5-42
Roads
Driving, Wet . . . . . . . . . . . . . . . . . . . 9-6
Roadside Assistance Program . . . . . . . . . . . . . . . 13-8, 13-10
Roof Sunroof . . . . . . . . . . . . . . . . . . . . . . . 2-23
Roof Rack System . . . . . . . . . . . . . . 4-5
Rotation, Tires . . . . . . . . . . . . . . . . 10-50
Routing, Engine Drive Belt . . . . . 12-3
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . 9-23