climate control CHEVROLET AVALANCHE 2007 2.G User Guide

The main components of your instrument panel are the following:
A. Air Outlets. SeeOutlet Adjustment on
page 238.
B. Turn Signal/Multifunction Lever. SeeTurn
Signal/Multifunction Lever on page 207.
C. Instrument Panel Cluster. SeeInstrument Panel
Cluster on page 240.
D. Hazard Warning Flasher Button. SeeHazard
Warning Flashers on page 206.
E. Shift Lever. SeeAutomatic Transmission
Operation on page 128.
F. Tow/Haul Selector Button (If Equipped).
SeeTow/Haul Mode on page 131.
G. Driver Information Center Controls. See
Driver Information Center (DIC) on page 257.
H. Audio System. SeeAudio System(s) on
page 286.
I. Exterior Lamps Control. SeeExterior Lamps
on page 215.
J. Dome Lamp Override Button. SeeDome Lamp
Override on page 220.
K. Automatic Transfer Case Control. (If Equipped).
SeeFour-Wheel Drive on page 132.
L. Cruise Control Buttons. SeeCruise Control
on page 212.M. Tilt Wheel Lever. SeeTilt Wheel on page 207.
N. Horn. SeeHorn on page 206.
O. Audio Steering Wheel Controls. SeeAudio
Steering Wheel Controls on page 347.
P. Dual Climate Controls or Dual Automatic
Climate Controls (If Equipped). SeeDual
Climate Control System on page 227orDual
Automatic Climate Control System on
page 230.
Q. Accessory Power Outlets. SeeAccessory
Power Outlet(s) on page 226. Cigarette Lighter
(If Equipped). SeeAshtray(s) and Cigarette
Lighter on page 226.
R. StabiliTrak
®Button. SeeStabiliTrak®System
on page 359. Pedal Adjust Button (If Equipped).
SeeAdjustable Throttle and Brake Pedal
on page 126. Rear Park Assist Disable
Button (If Equipped). SeeUltrasonic Rear
Parking Assist (URPA) on page 222. Heated
Windshield Washer Fluid Button (If Equipped).
SeeWindshield Washer on page 211. Power
Running Boards Disable Button (If Equipped).
SeePower Running Boards on page 115.
S. Glove Box. SeeGlove Box on page 170.
205

Windshield Washer
{CAUTION:
In freezing weather, do not use your
washer until the windshield is warmed.
Otherwise the washer uid can form ice
on the windshield, blocking your vision.
L(Washer Fluid):There is a paddle marked
with the windshield washer symbol at the top of
the multifunction lever. To spray washer uid
on the windshield, push the paddle. The wipers
will clear the window and then either stop or
return to your preset speed.
Heated Windshield Washer
If your vehicle has the heated windshield washer
uid system it may be used to help clear ice,
snow, tree sap, or bugs from your windshield.The button is located in
the switchbank under
the climate controls.
Push the heated washer uid button to activate
the heated windshield washer uid system.
The indicator light will ash. This activation
will initiate four heated wash/wipe cycles.
The rst heated wash/wipe cycle may take up
to 40 seconds to occur, depending on outside
temperature. After the rst wash/wipe cycle, it may
take up to 20 seconds for each of the remaining
cycles to begin. Press the button again to turn
off the heated windshield washer uid system
or it will automatically turn off after four wipe cycles
have been completed.
When the heated windshield washer uid system
is activated under certain outside temperature
conditions, steam may ow out of the washer
nozzles for a short period of time before washer
uid is sprayed. This is a normal condition.
211

When the battery’s state of charge is low, the
voltage is raised slightly to quickly put the charge
back in. When the state of charge is high, the
voltage is lowered slightly to prevent overcharging.
If the vehicle has a voltmeter gage or voltage
display on the Driver Information Center (DIC),
you may see the voltage move up or down.
This is normal. If there is a problem, an alert will
be displayed.
The battery can be discharged at idle if the
electrical loads are very high. This is true for all
vehicles. This is because the generator (alternator)
may not be spinning fast enough at idle to
produce all the power that is needed for very
high electrical loads.
A high electrical load occurs when several of the
following loads are on: headlamps, high beams,
fog lamps, rear window defogger, climate
control fan at high speed, heated seats, engine
cooling fans, trailer loads, and loads plugged
into accessory power outlets.EPM works to prevent excessive discharge of
the battery. It does this by balancing the
generator’s output and the vehicle’s electrical
needs. It can increase engine idle speed to
generate more power, whenever needed.
It can temporarily reduce the power demands
of some accessories.
Normally, these actions occur in steps or levels,
without being noticeable. In rare cases at the
highest levels of corrective action, this action
may be noticeable to the driver. If so, a Driver
Information Center (DIC) message might be
displayed, such as Battery Saver Active or
Service Battery Charging System. If this message
is displayed, it is recommended that the driver
reduce the electrical loads as much as possible.
SeeDIC Warnings and Messages on page 267.
Battery Run-Down Protection
This feature shuts off the dome lamps if they
are left on for more than 10 minutes when
the ignition is in LOCK. This will help prevent
the battery from running down.
221

Climate Controls
Dual Climate Control System
With this system you can control the heating,
cooling, defrost, defog and ventilation of
your vehicle.
Manual Operation
Turn the right knob clockwise or counterclockwise
to direct the airow inside of your vehicle.To change the current mode, select one of the
following:
H(Vent):This mode directs air to the instrument
panel outlets.
)(Bi-Level):This mode directs half of the air
to the instrument panel outlets and to the
oor outlets. The ow can be divided between
vent and oor outlets depending upon where the
knob is placed between the settings. A little
air is directed towards the windshield and side
window outlets. Cooler air is directed to the
upper outlets and warmer air to the oor outlets.
6(Floor):This mode directs most of the air
to the oor outlets, with some of the air directed
to the windshield, side window outlets, and
second row oor outlets. In this mode, the system
will automatically select outside air. Recirculation
cannot be selected when in Floor Mode.
The right knob can also be used to select defog
or defrost mode. For more information, see
“Defogging and Defrosting” later in this section.
By positioning the right knob between two modes,
a combination of those two modes is selected.
227

#(Air Conditioning):Press this button on
the left knob to turn the air conditioning system
on or off. When A/C is pressed, an indicator
light will come on to let you know that the
air conditioning has been activated.
On hot days, open the windows to let hot inside
air escape; then close them. This helps to reduce
the time it takes for your vehicle to cool down.
It also helps the system to operate more efficiently.
The air conditioning system removes moisture
from the air, so you may sometimes notice a
small amount of water dripping underneath
your vehicle while idling or after turning off the
engine. This is normal.
Defogging and Defrosting
Fog on the inside of the windows is a result of
high humidity (moisture) condensing on the
cool window glass. This can be minimized if
the climate control system is used properly.
There are two modes to clear fog or frost from
your windshield. Turn the right knob clockwise
to select the defog or defrost mode.
-(Defog):The defog mode is used to clear
the windows of fog or moisture and warm
the passengers. This mode directs air to the
windshield, oor outlets, and side window vents.
When you select 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. Do not
drive the vehicle until all the windows are clear.
0(Defrost):The defrost mode is used to
remove fog or frost from the windshield more
quickly. This mode directs a portion of the air
to the windshield and side window vents and
some to the oor vents. In this mode, the system
will automatically force outside air into your
vehicle. The recirculation mode cannot be selected
while in the defrost mode. The air conditioning
compressor will run automatically in this setting,
unless the outside temperature is close to
freezing. Do not drive the vehicle until all the
windows are clear.
229

Rear Window Defogger
The rear window defogger uses a warming grid
to remove fog from the rear window.
<(Rear Window Defogger):Press this button
on the right knob to turn on the rear window
defogger. The system will automatically turn off
several minutes after it has been activated.
The defogger can also be turned off by pressing
the button again or by turning off the engine.
Do not drive the vehicle until all the windows
are clear.
If your vehicle has 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
your warranty. Do not attach a temporary
vehicle license, tape, a decal or anything
similar to the defogger grid.
Dual Automatic Climate
Control System
With this system, you can control the heating,
cooling and ventilation in your vehicle. Your
vehicle also has a ow-through ventilation system
described later in this section.
You can select different climate control settings
for the driver and passengers.
230

To avoid blowing cold air in cold weather, the
system will delay turning on the fan until warm
air is available. The length of delay depends on
the engine coolant temperature. Pressing the
fan switch will override this delay and change
the fan to a selected speed.
O(On/Off):Press this button to turn off the
climate control system. Outside air will still enter
the vehicle, and will be directed to the oor.
This direction can be changed by pressing the
mode button. Recirculation can be selected once
you have selected vent or bi-level mode. The
temperature can also be adjusted using either
temperature button. If you adjust the air delivery
mode or temperature settings with the system
off, the display will illuminate briey to show
you the settings and then return off. Press the
on/off button or the up down arrows on the
fan switch, the defrost button, AUTO button,
or the air conditioning button to turn the system
on when it is off.
Manual Operation
You may manually adjust the air delivery mode
or fan speed.
y9z(Fan):The buttons with the fan symbols
allow you to manually adjust the fan speed.
Press the up arrow to increase fan speed and
the down arrow to decrease fan speed.
Pressing one of these buttons when the system
is off will turn the system on. Pressing one of these
buttons when in automatic control will place the
fan under manual control. The fan setting will
remain displayed and the AUTO light will turn off.
The air delivery mode will remain under
automatic control.
yNz(Mode):Press the mode up and down
buttons to manually change the direction of
the airow in your vehicle. Repeatedly press the
button until the desired mode appears on the
display. Pressing one of these buttons when the
system is off will change air delivery mode without
turning the system on. Pressing one of these
buttons when in automatic control will place the
mode under manual control.
233

In order to prevent false temperature readings
at startup, the displayed temperature will not
change until the following occurs:
Vehicle speed is above 10 mph (16 kmh)
for 5 minutes.
Vehicle speed is above 32 mph (51 kmh)
for 2 and a half minutes.
The climate control system uses the information
from these sensors to maintain your comfort
setting by adjusting the outlet temperature, fan
speed, and the 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.
Defogging and Defrosting
Fog on the inside of the windows is a result of
high humidity (moisture) condensing on the
cool window glass. This can be minimized if the
climate control system is used properly. There
are two modes to clear fog or frost from your
windshield.Use the mode up and down arrows to select the
defog or defrost modes.
-(Defog):The defog mode is used to clear
the windows of fog or moisture and warm
the passengers. This mode directs air to the
windshield, oor outlets, and side window vents.
When you select 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. Do not
drive the vehicle until all the windows are clear.
0(Defrost):Press this button to remove fog
or frost from the windshield more quickly.
This mode directs a portion of the air to the
windshield and side window vents and some to
the oor vents. In this mode, the system will
automatically force outside air into your vehicle.
The recirculation mode cannot be selected
while in the defrost mode. The air conditioning
compressor will run automatically in this setting,
unless the outside temperature is close to
freezing. Do not drive the vehicle until all the
windows are clear.
237

If the system fails to turn on or activate, the
StabiliTrak®light along with one of the following
messages will be displayed on the Driver
Information Center (DIC): TRACTION CONTROL
OFF, SERVICE TRACTION CONTROL,
STABILITRAK OFF, SERVICE STABILITRAK.
If these DIC messages appear, make sure
the StabiliTrak
®system has not been turned off
using the StabiliTrak®on/off button. Then turn the
steering wheel clockwise from the nine o’clock
position to the three o’clock position. If this clears
the message(s), your vehicle does not need
servicing. If this does not clear the message(s),
then turn the vehicle off, wait 15 seconds, and then
turn it back on again to reset the system. If any
of these messages still appear on the Driver
Information Center (DIC), your vehicle should be
taken in for service. For more information on
the DIC messages, seeDriver Information
Center (DIC) on page 257.The StabiliTrak
®light
will ash on the
instrument panel cluster
when the system is
both on and activated.
You may also feel or hear the system working;
this is normal.
The traction control
disable button
is located on
the instrument
panel below the
climate controls.
The traction control part of StabiliTrak
®can
be turned off by pressing and releasing the
StabiliTrak
®button if both systems (traction control
and StabiliTrak®) were previously on. To disable
both traction control and StabiliTrak®, press
and hold the button for ve seconds.
360

Uniform Tire Quality Grading
Quality grades can be found where applicable on
the tire sidewall between tread shoulder and
maximum section width. For example:
Treadwear 200 Traction AA Temperature A
The following information relates to the system
developed by the United States National Highway
Traffic Safety Administration (NHTSA), which
grades tires by treadwear, traction, and
temperature performance. This applies only to
vehicles sold in the United States. The grades are
molded on the sidewalls of most passenger car
tires. The Uniform Tire Quality Grading (UTQG)
system does not apply to deep tread, winter-type
snow tires, space-saver, or temporary use
spare tires, tires with nominal rim diameters of
10 to 12 inches (25 to 30 cm), or to some
limited-production tires.
While the tires available on General Motors
passenger cars and light trucks may vary with
respect to these grades, they must also conform
to federal safety requirements and additional
General Motors Tire Performance Criteria (TPC)
standards.
Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specied
government test course. For example, a tire
graded 150 would wear one and a half (1.5) times
as well on the government course as a tire
graded 100. The relative performance of tires
depends upon the actual conditions of their use,
however, and may depart signicantly from
the norm due to variations in driving habits, service
practices, and differences in road characteristics
and climate.
Traction – AA, A, B, C
The traction grades, from highest to lowest, are
AA, A, B, and C. Those grades represent the tire’s
ability to stop on wet pavement as measured
under controlled conditions on specied
government test surfaces of asphalt and concrete.
A tire marked C may have poor traction
performance.
Warning:The traction grade assigned to this tire
is based on straight-ahead braking traction
tests, and does not include acceleration, cornering,
hydroplaning, or peak traction characteristics.
511