2005 CHEVROLET COBALT air conditioning

When adding electrical equipment, be sure to follow the
installation instructions included with the equipment.
Notice:Improper use of the power outlet can cause
damage not covered by your warranty. Do not
hang any type of accessory or accessory bracket
from the plug because the power outlets are
designed for accessory power plugs only.
Ashtrays and Cigarette Lighter
Your vehicle may have an ashtray and cigarette lighter.
To use the lighter, located on the instrument panel
below the climate controls, push it in all the way and let
go. When it is ready, it will pop back out by itself.
Notice:Holding a cigarette lighter in while it is
heating will not allow the lighter to back away from
the heating element when it is hot. Damage from
overheating may occur to the lighter or heating
element, or a fuse could be blown. Do not hold a
cigarette lighter in while it is heating.
To clean the center console ashtray, remove the entire
ashtray and empty it.
Notice:If you put papers, pins, or other ammable
items in the ashtray, hot cigarettes or other
smoking materials could ignite them and possibly
damage your vehicle. Never put ammable items in
the ashtray.
Climate Controls
Climate Control System
With this system you can control the heating, cooling,
and ventilation for your vehicle.
Operation
To change the current mode, select one of the following:
H(Vent):This mode directs air to the instrument
panel outlets.Vehicles with Air Conditioning shown, without Air
Conditioning similar
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)(Bi-Level):This mode directs approximately half of
the air to the instrument panel outlets, and then
directs the remaining air to the oor 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 air directed to the windshield and
side windows.
The left knob can also be used to select defog or
defrost mode. Information on defogging and defrosting
can be found later in this section.
Recirculation mode is not allowed in this mode.
9(Fan):Turn the center knob clockwise or
counterclockwise to increase or decrease the fan speed.
In any setting other than off, the fan will run continuously
with the ignition on. The fan must be turned on to run
the air conditioning (AC) compressor.
9(Off):To turn the fan off, turn the knob all the way
counterclockwise to the off position.
Temperature Control:Turn the right knob clockwise or
counterclockwise to increase or decrease the
temperature inside your vehicle.
h(Recirculate):Press this button to prevent
outside air and odors from entering your vehicle or to
help heat or cool the air inside your vehicle more quickly.
An indicator light above the button will come on in this
mode. The air conditioning compressor also comes
on. This mode is not available for oor, defog and
defrost modes. When the recirculation button is pressed,
the RECIRC indicator light will ash ve times and
outside air will be delivered. Operation in this mode
during periods of high humidity and cool outside
temperatures may result in increased window fogging. If
window fogging is experienced, select the defrost
mode.
Outside Air:This mode allows outside air to circulate
through your vehicle. This mode is automatically
active if recirculate is not selected. There is no button
for outside air.
#(Air Conditioning):If your vehicle has air
conditioning, press this button to turn the air conditioning
system on or off. When this button is pressed, an
indicator light above the button will come on to let you
know the air conditioning is activated.
3-18

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.
For quick cool down on hot days:
1. Select the vent mode.
2. Select the recirculation mode.
3. Select air conditioning.
4. Select the coolest temperature.
5. Select the highest fan speed.
Using these settings together for long periods of time
may cause the air inside of your vehicle to become too
dry. To prevent this from happening, after the air in
your vehicle has cooled, turn off the recirculation
by pressing the button again.
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.
The air conditioning compressor cannot be turned on
when the fan is off.Defogging and Defrosting
Fog on the inside of 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 and side windows. 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.
For best results, clear all snow and ice from the
windshield before defrosting.
Turn the left knob to select the defog or defrost mode.
-(Defog):This mode directs approximately half of the
air to the windshield and the side window outlets and
half to the oor outlets. When you select this mode the
system runs the air conditioning compressor. To
defog the windows faster, turn the temperature control
knob clockwise to the warmest setting.
Recirculation mode is not available in defog mode.
3-19

0(Defrost):This mode directs most of the air to the
windshield, with some air directed to the side window
outlets and the oor outlets. When you select this mode
the system runs the air conditioning compressor. To
defrost the windows faster, turn the temperature control
knob clockwise to the warmest setting.
Recirculation mode is not available in defog mode.
Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog from the rear window.
The rear window defogger will only work when the
ignition is in RUN.
<(Rear):Press the button to turn the rear window
defogger on or off. Be sure to clear as much snow from
the rear window as possible. An indicator light above
the button will come on to let you know that the
rear window defogger is activated.
The rear window defogger will turn off approximately
15 minutes after the button is pressed. If turned on
again, the defogger will only run for approximately seven
minutes before turning off. The defogger can also be
turned off by pressing the button again or by turning off
the engine.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.
Outlet Adjustment
Use the thumbwheels located next to and below the air
outlets to change the direction of the airow and to
open and close the outlets.
Operation Tips

Clear away any ice, snow or leaves from the air
inlets at the base of the windshield that may
block the ow of air into your vehicle.
Use of non-GM approved hood deectors may
adversely affect the performance of the system.
Keep the path under the front seats clear of objects
to help circulate the air inside of your vehicle more
effectively.
3-20

When towing a trailer, the arrows on your instrument
panel will ash for turns even if the bulbs on the trailer
are burned out. Thus, you may think drivers behind
you are seeing your signal when they are not. It
is important to check occasionally to be sure the trailer
bulbs are still working.
Driving on Grades
Notice:Do not tow on steep continuous grades
exceeding 6 miles (9.6 km). Extended, higher
than normal engine and transaxle temperatures may
result and damage your vehicle. Frequent stops
are very important to allow the engine and transaxle
to cool.
Reduce speed and shift to a lower gearbeforeyou start
down a long or steep downgrade. If you do not shift
down, you might have to use your brakes so much that
they would get hot and no longer work well.
Pay attention to the engine coolant gage. If the indicator
is in the red area, turn off the air conditioning to
reduce engine load. SeeEngine Overheating on
page 5-29.
Parking on Hills
{CAUTION:
You really should not park your vehicle, with a
trailer attached, on a hill. If something goes
wrong, your rig could start to move. People
can be injured, and both your vehicle and the
trailer can be damaged.
But if you ever have to park your rig on a hill, here is
how to do it:
1. Apply your regular brakes, but do not shift into
PARK (P) for an automatic transaxle, or into
gear for a manual transaxle. When parking uphill,
turn your wheels away from the curb. When parking
downhill, turn your wheels into the curb.
2. Have someone place chocks under the trailer
wheels.
3. When the wheel chocks are in place, release the
regular brakes until the chocks absorb the load.
4. Reapply the regular brakes. Then apply your
parking brake, and then shift into PARK (P) for
an automatic transaxle or REVERSE (R) for
a manual transaxle.
5. Release the regular brakes.
4-43

Tire Size
The following illustration shows an example of a typical
passenger vehicle tire size.
(A) Passenger (P-Metric) Tire:The United States
version of a metric tire sizing system. The letter P as the
rst character in the tire size means a passenger
vehicle tire engineered to standards set by the U.S. Tire
and Rim Association.
(B) Tire Width:The three-digit number indicates the
tire section width in millimeters from sidewall to sidewall.
(C) Aspect Ratio:A two-digit number that indicates
the tire height-to-width measurements. For example, if
the tire size aspect ratio is 60, as shown in item C of the
illustration, it would mean that the tire’s sidewall is
60 percent 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:These characters represent
the load range and speed rating of the tire. The load
index represents the load carry capacity a tire is certied
to carry. The load index can range from 1 to 279. The
speed rating is the maximum speed a tire is certied
to carry a load. Speed ratings range from A to Z.
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.
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Fuses Usage
9 Stoplamp
10 Heating, Ventilation, Air Conditioning
11 Empty
12 Spare
13 Airbag
14 Spare
15 Windshield Wiper
16Climate Control System, Cluster,
Brake Transmission Shift Interlock
17 Empty
18 Empty
19Electric Power Steering, Steering
Wheel Control
20 Sunroof
21 SpareFuses Usage
22 Empty
23 Empty
24 Sensing and Diagnostic Module
25Engine Control Module, Transaxle
Control Module
26 Door Locks
27 Interior Lights
28 Audio System
29 Power Windows
Relays Usage
30 Ignition 3
31 Empty
32 Retained Accessory Power
5-93

Fuses Usage
SPARES Spares
Blank Not Used
Blank Not Used
RDFG Rear Defogger
COOL/ FAN2 Cooling Fan 2
CRNK Starter
COOL/ FAN 1 Engine Cooling Fan
BCM3 Body Control Module 3
BCM2 Body Control Module 2
FOG LP Fog Lamps
HORN Horn
RH LO BEAM Passenger’s Side Low Beam
LH LO BEAM Driver’s Side Low Beam
RH HI BEAM Passenger’s Side High Beam
LH HI BEAM Driver’s Side High Beam
Blank Not Used
FUEL PMP Fuel Pump
EMISN Emissions
Blank Not Used
INJ Injectors
Blank Not UsedFuses Usage
ABS Anti-lock Brake System
PCM/ECMPowertrain Control Module/Engine
Control Module
EPS Electric Power Steering
Blank Not Used
PRK LPS Park Lamps
WPR Windshield Wiper
IP IGN Ignition
A/C CLTCH Air Conditioning Clutch
AFTRCOOL Aftercooler
ABS2 Anti-lock Brake System
PRK/NEUT Park, Neutral
ECM/TRANSEngine Control Module,
Transmission
BCK UP Back-Up Lamps
TRUNK/
OUTLETTrunk, Accessory Power Outlet
Blank Not Used
Blank Not Used
S BAND/
ONSTARAudio, OnStar
®
Blank Not Used
5-95