2012 CHEVROLET AVALANCHE air conditioning

Black plate (5,1)Chevrolet Avalanche Owner Manual - 2012
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.
0:Adjustable Pedals
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
(: Heated Steering Wheel
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 (16,1)Chevrolet Avalanche Owner Manual - 2012
1-16 In Brief
Climate Controls
The heating, cooling, defrost, defog and ventilation of the vehicle can be
controlled with these systems.
A. Fan Control
B. Outside Air
C. Air Recirculation
D. Air Delivery Mode ControlE. Air Conditioning
F. Driver and Passenger
Temperature Controls
G. Rear Window Defogger

Black plate (17,1)Chevrolet Avalanche Owner Manual - 2012
In Brief 1-17
A. Driver and PassengerTemperature Controls
B. Fan Control
C. AUTO
D. Defrost
E. Air Recirculation
F. Outside Air
G. Air Delivery Mode Control H. Display
I. Power Button
J. Rear Window Defogger
K. Air Conditioning
L. PASS
See
Climate Control Systems on
page 8‑1 andDual Automatic
Climate Control System on
page 8‑4.
Transmission
Range Selection Mode
If available, the Range Selection
Mode switch is located on the shift
lever.
To use the Range Selection feature:
1. Move the column shift lever to the M (Manual) position. The
current range will appear next
to the M. This is the highest
attainable range with all lower
gears accessible. As an
example, when 5 (Fifth) gear
is selected, 1 (First) through
5 (Fifth) gears are available.

Black plate (5,1)Chevrolet Avalanche Owner Manual - 2012
Keys, Doors, and Windows 2-5
To replace the battery:
1. Separate the transmitter with aflat, thin object, such as a flat
head screwdriver.
.Carefully insert the tool
into the notch located
along the parting line of the
transmitter. Do not insert
the tool too far. Stop as
soon as resistance is felt.
.Twist the tool until the
transmitter is separated.
2. Remove the old battery. Do not use a metal object. 3. Insert the new battery, positive
side facing down. Replace with a
CR2032 or equivalent battery.
4. Snap the transmitter back together.
Remote Vehicle Start
If available, this feature allows you
to start the engine from outside of
the vehicle. It may also start up the
vehicle's heating or air conditioning
systems and rear window defogger.
Normal operation of the system will
return after the key is turned to the
ON/RUN position.
If the vehicle has an automatic
climate control system, the climate
control system will default to a
heating or cooling mode depending
on the outside temperatures. If the
vehicle does not have an automatic
climate control system, the system
will turn on at the setting the vehicle
was set to when the vehicle was
last turned off. During a remote start, if the vehicle
has an automatic climate control
system and heated seats, the
heated seats will turn on during
colder outside temperatures and will
shut off when the key is turned to
ON/RUN. If the vehicle does not
have an automatic climate control
system, during remote start,
manually turn the heated seats on
and off. See
Heated and Ventilated
Front Seats on page 3‑9 for
additional information.
Laws in some communities may
restrict the use of remote starters.
For example, some laws may
require a person using the remote
start to have the vehicle in view
when doing so. Check local
regulations for any requirements
on remote starting of vehicles.
Do not use the remote start feature
if the vehicle is low on fuel. The
vehicle may run out of fuel.

Black plate (37,1)Chevrolet Avalanche Owner Manual - 2012
Instruments and Controls 5-37
As soon as it is safe to do so,
carefully pull your vehicle over to
the side of the road and turn the
ignition off. Check the wiring
connection to the trailer and turn the
ignition back on. If this message still
displays, either your vehicle or the
trailer needs service. See your
dealer.
See“Integrated Trailer Brake
Control System” underTowing
Equipment on page 9‑75 for more
information.
Door Ajar Messages
DRIVER DOOR OPEN
This message displays and a chime
sounds if the driver 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.
HOOD OPEN
This message displays and a chime
sounds if the hood is not fully
closed. Stop and turn off the
vehicle, check the hood for
obstructions, and close the hood
again. Check to see if the message
still appears on the DIC.
LEFT REAR DOOR OPEN
This message displays and a chime
sounds if the driver 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.
PASSENGER DOOR OPEN
This message displays and a chime
sounds if the front 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.
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) TURNED OFF
This message displays when the
engine coolant becomes hotter than
the normal operating temperature.
See Engine 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.

Black plate (1,1)Chevrolet Avalanche Owner Manual - 2012
Climate Controls 8-1
Climate Controls
Climate Control Systems
Climate Control Systems . . . . . . 8-1
Dual Automatic Climate ControlSystem . . . . . . . . . . . . . . . . . . . . . . 8-4
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . 8-10
Climate Control Systems
The heating, cooling, defrost, defog and ventilation of the vehicle can be
controlled with this system.
A. Fan Control
B. Outside Air
C. Recirculation
D. Air Delivery Mode Control E. Air Conditioning
F. Driver and Passenger
Temperature Controls
G. Rear Window Defogger

Black plate (2,1)Chevrolet Avalanche Owner Manual - 2012
8-2 Climate Controls
Temperature Control:Move
the thumbwheels up or down
to increase or decrease the
temperature on the driver side or
the passenger side of the vehicle.
A(Fan Control): Turn clockwise
or counterclockwise to increase or
decrease the fan speed. Turn the
knob all the way counterclockwise
to turn the front system off.
Air Delivery Mode Control: Turn
clockwise or counterclockwise to
change the direction of the airflow
inside the vehicle. The knob can be
positioned between two modes, for
a combination of those modes.
To change the current mode, select
one of the following:
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
when in Floor Mode.
-(Defog): The defog mode is
used to clear the windows of fog or
moisture. Air is directed to the
windshield, floor outlets, and side
window vents. In this mode, the
system turns off recirculation and
runs the air conditioning compressor
unless the outside temperature is
close to freezing. The recirculation
mode cannot be selected while in
the defog mode.
0(Defrost): The defrost mode is
used to remove fog or frost from
the windshield more quickly. Air is
directed to the windshield and side
window vents, with some directed to the floor vents. In this mode, the
system automatically forces outside
air into the vehicle. The recirculation
mode cannot be selected while
in the defrost mode. The air
conditioning compressor runs
automatically in this setting, unless
the outside temperature is close to
freezing.
Do not drive the vehicle until all the
windows are clear.
#(Air Conditioning):
Press this
button to turn the air conditioning
system on or off. An indicator
light comes on to show that the
air conditioning is on. The air
conditioning can be selected in any
mode as long as the fan control
is on.
On hot days, open the windows to
let hot inside air escape; then close
them. This helps to reduce the time
it takes for the vehicle to cool down.
It also helps the system to operate
more efficiently.

Black plate (3,1)Chevrolet Avalanche Owner Manual - 2012
Climate Controls 8-3
The air conditioning system
removes moisture from the air, so a
small amount of water might drip
under the vehicle while idling or
after turning off the engine. This is
normal.
:(Outside Air):Press to turn
the outside air mode on. An
indicator light comes on to show
that outside air is on. Air from
outside the vehicle is circulated
throughout the vehicle. The outside
air mode can be used with all
modes, but it cannot be used with
the recirculation mode. Pressing this
button again will cancel the
recirculation mode.
?(Recirculation): Press to turn
the recirculation mode on or off. An
indicator light comes on to show
that recirculation is on.
This mode recirculates and helps
to quickly cool the air inside the
vehicle. It can be used to help
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
while in one of those modes, the
indicator flashes three times and
turns off. The air conditioning
compressor will also come on when
this mode is activated. While in
recirculation mode the windows may
fog when the weather is cold and
damp. To clear the fog, select either
the defog or defrost mode and
increase the fan speed. The
recirculation mode can also be
turned off by turning off the engine.
Rear Window Defogger
The rear window defogger uses a
warming grid to remove fog from the
rear window.
1(Rear Window Defogger):
Press this button on the right knob
to turn the rear window defogger on
or off. The system automatically
turns off several minutes after it has
been activated. The defogger can
also be turned off by turning off the
engine. Do not drive the vehicle until
all the windows are clear.
For vehicles with heated outside
rearview mirrors, the mirrors will
heat to help clear fog or frost from
the surface of the mirror when the
rear window defog button is
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.