2004 CHEVROLET VENTURE air conditioning

The right knob can also be used to select defog or
defrost mode. For more information, see “Defogging and
Defrosting” later in this section.
9(Fan):Turn the left knob clockwise or
counterclockwise to increase or decrease the fan speed.
Turn the knob to OFF to turn off the fan. The fan must be
turned on for the air conditioning compressor to operate.
:(Outside Air):Press this button to turn the
outside air mode on or off. When this mode is on,
outside air will circulate throughout your vehicle. When
this mode is on, an indicator light in the button will
come on to let you know that it is activated. The outside
air mode can be used with all modes, but it cannot
be used with the recirculation mode.
?(Recirculation):This mode keeps outside air
from coming in the vehicle. It can be used to prevent
outside air and odors from entering your vehicle or help
heat or cool the air inside your vehicle more quickly.
Press this button to turn the recirculation mode on or off.
When the button is pressed, an indicator light will
come on. The air-conditioning compressor also comes
on. The recirculation mode can be used with vent
and bi-level modes, but it cannot be used with oor,
defog, defrost or outside air modes.Temperature Control:Turn the center knob clockwise
or counterclockwise to increase or decrease the air
temperature inside your vehicle.
#A/C (Air Conditioning):Press this button to turn
the air-conditioning system on or off. When A/C is
pressed, an indicator light in the button will come on to
let you know that air conditioning is activated.
You may notice a slight change in engine performance
when the air-conditioning compressor shuts off and
turns on again. This is normal. The system is designed
to make adjustments to help with fuel economy while
still maintaining the selected temperature.
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.
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Defogging and Defrosting
Fog on the inside of windows is a result of high humidity,
or 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 defog mode to clear the
windows of fog or moisture and warm the passengers.
Use the defrost mode to remove fog or frost from the
windshield more quickly.
Turn the right knob to select the defog or defrost mode.
-(Defog):This mode directs air to the windshield
and the oor outlets. When you select this mode,
the system turns off recirculation and runs the
air-conditioning compressor unless the outside
temperature is at or below freezing. The recirculation
mode cannot be selected while in the defog mode.
0(Defrost):Pressing this button directs most of the
air to the windshield and the side window outlets, with
some air directed to the oor outlets. In this mode, the
system will automatically turn off recirculation and run the
air-conditioning compressor, unless the outside
temperature is at or below freezing. Recirculation cannot
be selected while in the defrost mode.
Do not drive the vehicle until all the windows are clear.
Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog from the rear window.
defogger on or off. An indicator light in the button
will come on to let you know that the rear window
defogger is activated.
The rear window defogger will turn off about 10 minutes
after the button is pressed. If turned on again, the
defogger will only run for about ve minutes before
turning off. The defogger can also be turned off
by pressing the button again or by turning off the engine.
Notice:Don’t use anything sharp on the inside of
the rear window. If you do, you could cut or damage
the warming grid, and the repairs wouldn’t be
covered by your warranty. Do not attach a temporary
vehicle license, tape, a decal or anything similar
to the defogger grid.
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These controls are overhead, on the control panel located
behind the driver’s seat. A rear seat passenger can use
these controls to personally adjust the temperature and
the fan speed for the rear seating area.The fan knob located on the switchbank must be turned
to R (Rear) to allow the rear seat passengers to use
the controls located on the control panel in the rear
seating area. Performing this action disables the
fan knob on the switchbank. To return control to that
knob, turn the knob out of R.
To direct the airow to the rear seating area, use the
right knob located on the main climate control panel.
Select vent or bi-level mode to direct air to the
rear of the vehicle through the overhead outlets.
Select oor, defog, or defrost mode to direct air to
the rear of the vehicle through the oor outlets.
Generally the upper outlets are used for air conditioning
and the oor outlets are used for heating.
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9(Fan):Turn the fan knob on either rear fan control
to numeral 1, 2, or 3 to increase or decrease airow
to the rear seating area. Turn the fan knob on either rear
fan control to 0 or OFF to turn off the fan.
Temperature Control:If the driver is adjusting the
temperature, increase or decrease the temperature for
the entire vehicle using the temperature controls located
on the main climate control panel. The air-conditioning
system must be on to direct cooled air to the rear of the
vehicle. If it is not on, the temperature in the rear of the
vehicle will remain at cabin temperature.
If a rear seat passenger is adjusting the temperature,
turn the right knob, located overhead on the control panel
behind the driver’s seat, clockwise or counterclockwise
to raise or lower the temperature in the rear seating
area only.Rear Air Outlets
To increase airow through the rear oor outlets, place
the left bucket seat in the second row in the forward
position. For more information, seeRear Seat Operation
on page 1-6.
The outlet behind the left rear seat is the cold air return
outlet. Be sure to keep it free from obstructions.
Also, keep the area around the base of the center
instrument panel console, between and under the front
seats, free of objects that could also obstruct airow
to the rear seating area.
For more information on how to use the main climate
control system, see “Climate Control System” listed
previously in this section. For information on ventilation,
see “Outlet Adjustment” under “Climate Control
System” listed previously in this section.
3-31

Rear Climate Control System
(With Entertainment System)
Your vehicle may have a rear climate control system
that allows the driver to adjust the fan speed or a
rear seat passenger to set a separate temperature and
adjust the fan speed, for the rear seating area. This
system works with the main climate control system in
your vehicle.
This knob is located below
the main climate control
system on the instrument
panel switchbank. Use
this knob to adjust the fan
speed for the rear seat
passengers.These controls are overhead, on the control panel located
behind the front seats. A rear seat passenger can use
these controls to personally adjust the temperature and
the fan speed for the rear seating area.
The fan knob located on the switchbank must be turned
to R (Rear) to allow the rear seat passengers to use the
controls located on the control panel in the rear seating
area. If this fan knob is not in R when the FAN or TEMP
button is pressed, the rear control panel will show
DISABLED.
To direct the airow to the rear seating area, use the
right knob located on the main climate control panel.
Select vent or bi-level mode to direct air to the
rear of the vehicle through the overhead outlets.
Select oor, defog, or defrost mode to direct air to
the rear of the vehicle through the oor outlets.
Generally the upper outlets are used for air conditioning
and the oor outlets are used for heating.
3-32

9(Fan):If the driver is adjusting the fan speed, use
this control. Turn the fan knob on the rear fan control
located below the main climate control system on
the switchbank to numeral 1, 2, or 3 to increase or
decrease airow to the rear seating area. Turn the fan
knob on the rear fan control to 0 to turn off the fan.
FAN:If a rear-seat passenger is adjusting the fan
speed, use this control. Press the FAN button on the
rear control panel. The display will show the current
setting. Press the left and right arrow buttons to cycle
through the available settings of OFF, LOW, MED,
and HIGH.
Temperature Control:If the driver is adjusting the
temperature, increase or decrease the temperature for
the entire vehicle using the temperature controls
located on the main climate control panel. The
air-conditioning system must be on to direct cooled air
to the rear of the vehicle. If it is not on, the temperature
in the rear of the vehicle will remain at cabin
temperature.
If a rear-seat passenger is adjusting the temperature,
press the TEMP button on the rear control panel.
Use the left arrow button to make the air cooler. Use
the right arrow button to make the air warmer.Rear Air Outlets
To increase airow through the rear oor outlets, place
the left bucket seat in the second row in the forward
position. For more information, seeRear Seat Operation
on page 1-6.
The outlet behind the left rear seat is the cold air return
outlet. Be sure to keep it free from obstructions.
Also, keep the area around the base of the center
instrument panel console, between and under the front
seats, free of objects that could also obstruct airow
to the rear seating area.
For more information on how to use the main climate
control system, see “Climate Control System” listed
previously in this section. For information on ventilation,
see “Outlet Adjustment” under “Climate Control
System” listed previously in this section.
3-33

(C) Aspect Ratio:A two-digit number that indicates the
tire height-to-width measurements. For example, if
the tire size aspect ratio is “75,” as shown in item “C” of
the illustration, it would mean that the tire’s sidewall
is 75% as high as it is wide.
(D) Construction Code:A letter code is used to
indicate the type of ply construction in the tire. The letter
“R” means radial ply construction; the letter “D” means
diagonal or bias ply construction; and the letter “B”
means belted-bias ply construction.
(E) Rim Diameter:Diameter of the wheel in inches.
(F) Service Description:The service description
indicates the load range and speed rating of a tire. The
load index can range from 1 to 279. Speed ratings
range from “A” to “Z”. The light truck tire size example
above shows dual or single tire congurations.Tire Terminology and Denitions
Air Pressure:The amount of air inside the tire pressing
outward on each square inch of the tire. Air pressure
is expressed in pounds per square inch (psi) or
kilopascal (kPa).
Accessory Weight:This means the combined weight
of optional accessories. Some examples of optional
accessories are, automatic transmission, power steering,
power brakes, power windows, power seats, and air
conditioning.
Aspect Ratio:The relationship of a tire’s height to its
width.
Belt:A rubber coated layer of cords that is located
between the plies and the tread. Cords may be made
from steel or other reinforcing materials.
Bead:The tire bead contains steel wires wrapped by
steel cords that hold the tire onto the rim.
5-65

Fuse Usage
32 Fuel Pump Relay
33 Powertrain Control Module
34 Not Used
35 Fog Lamp Relay
36 Horn Relay
37Daytime Running Lamps (DRL)
Control Module, Headlamps and
Instrument Panel Dimmer Switch
Theft-Deterrent Relay to Headlamps
38 Not Used
39 AIR
40 Mini Fuse Puller
§Air Conditioning Clutch Diode
Relay Usage
9 Right Fan 1, Left Fan 2
10 Left Fan 2
11Fuses: A/C Clutch, Ignition 1-U/H,
Electronic Ignition, TCC, Injectors
12 Right Fan 1, Left Fan 2
13 A/C Clutch
14 Fuel Pump
15 Not Used
16 Horn
17Left Fog Lamp, Right Fog Lamp,
Fog Lamp Indicator
5-112