2009 CHEVROLET IMPALA air conditioning

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.
9:Airbag Readiness Light
#:Air Conditioning
!:Antilock Brake System (ABS)
g: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 Gage
+:Fuses
i:Headlamp High/Low-Beam Changer
j:LATCH System Child Restraints
*:Malfunction Indicator Lamp
::Oil Pressure
}:Power
/:Remote Vehicle Start
>:Safety Belt Reminders
7:Tire Pressure Monitor
F:Traction Control
M:Windshield Washer Fluid
iv

Remote Vehicle Start
Your vehicle may have a remote starting feature that
allows you to start the engine from outside the vehicle. It
may also start the vehicle’s heating or air conditioning
systems and rear window defogger. When the
remote start system is active and the vehicle has an
automatic climate control system, it will automatically
regulate the inside temperature. Normal operation
of these systems will return after the ignition key is
turned to ON/RUN.
Laws in some communities may restrict the use of
remote starters. For example, some laws may require a
person using 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 your vehicle is low
on fuel. Your vehicle may run out of fuel.
If your vehicle has the remote start feature, the RKE
transmitter functions will have an increased range
of operation. However, the range may be less while the
vehicle is running.There are other conditions which can affect the
performance of the transmitter, seeRemote Keyless
Entry (RKE) System on page 2-4
/(Remote Start):This button will be on the RKE
transmitter if you have remote start.
To start the vehicle using the remote start feature:
1. Aim the transmitter at the vehicle.
2. Press and release the transmitter’s lock button,
then immediately press and hold the transmitter’s
remote start button for two to four seconds or
until the vehicle’s turn signal lamps ash. The doors
will lock.
When the vehicle starts, the parking lamps turn on
and remain on while the engine is running.
The remote start feature provides two separate starts
per ignition cycle, each with 10 minutes of engine
running time, or one start with a time extension. The
rst start must expire or be canceled to get two separate
10 minute starts.
2-7

Climate Controls
Climate Control System
The heating, cooling, defrost, defog and ventilation
can be controlled with this system. For vehicles
with heated seats, seeHeated Seats on page 1-6.
A. Fan Control
B. Outside Air
C. Recirculation
D. Air Delivery Mode
ControlE. Air Conditioning
F. Heated Seats
G. Driver and Passenger
Temperature Controls
H. Rear Window
DefoggerTemperature Control:Turn the thumbwheels up or
down to increase or decrease the temperature on
the driver’s side or the passenger side of the vehicle.
9(Fan Control):Turn clockwise or counterclockwise
to increase or decrease the fan speed. Positioning the
knob between two modes, can select a combination of
those modes.
If the airow seems low when the fan is at the highest
setting, the passenger compartment air lter may need
to be replaced. There will be some airow noticeable
from the various outlets when driving, even with the fan
in the off position. For more information, seePassenger
Compartment Air Filter on page 3-23andScheduled
Maintenance on page 6-4.
Air Delivery Mode Control:Turn clockwise or
counterclockwise to change the direction of the airow
inside the vehicle.
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 outlets and the oor outlets.
3-20

6(Floor):Air is directed to the oor outlets, with
some of the air directed to the windshield and side
window outlets. In this mode, the system automatically
selects outside air.
-(Defog):This mode clears the windshield of fog or
moisture. Air is directed equally to the windshield and the
oor outlets. When defog is selected, the system turns off
recirculation and runs the air conditioning compressor
unless the outside temperature is below 40°F (4°C).
0(Defrost):This mode clears the windshield of fog or
frost more quickly. Air is directed to the windshield with
some air to the side window vents and the oor vents.
When defrost is selected, the system automatically
forces outside air into the vehicle. The air conditioning
compressor will run automatically in this setting, unless
the outside temperature is below 40°F (4°C).
#(Air Conditioning):Press to turn the air
conditioning system on or off. An indicator light
comes on to show that it is on. The air conditioning
can be selected in any mode as long as the fan is
on and the outside temperature is above freezing.
A ashing indicator light indicates that the air
conditioning compressor is currently not available.
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.
For quick cool down on hot days, do the following:
1. Select the
Hmode.
2. Press the
#button.
3. Select the coolest temperature for both zones.
4. Select the highest
9speed.
5. When the coolest temperature is selected in the
A/C mode, the system automatically goes into the
recirculation mode to improve cooling.
3-21

Using these settings together for long periods of time
may cause the air inside the vehicle to become too dry.
To prevent this from happening, after the air inside
the vehicle has cooled, turn the recirculation mode off.
The air conditioning system removes moisture from
the air, so a small amount of water may drip under
the vehicle while idling or after turning off the engine.
This is normal.
:(Outside Air):Press to turn on outside air.
An indicator light comes on to show that it is on.
Outside air will circulate throughout the vehicle.
?(Recirculation):Press to turn on the recirculation
mode. An indicator light comes on to show that it is on.
This mode helps to quickly heat or cool the air inside the
vehicle once the temperature inside the vehicle is equal
to or better than the outside temperature. It can be used
to prevent outside air and odors from entering the vehicle.
The recirculation mode is not available in outside air,
oor, defog or defrost modes. If the button is selected
while in these modes, the indicator ashes three times.
Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog from the rear window.
<(Rear Window Defogger):The rear window
defogger turns off automatically after it has been
activated for 10 minutes. It can be turned off manually,
by pressing the button again or by turning the ignition
to the LOCK/OFF position. The rear window defogger
can be turned on again for additional window clearing.
The length of defogger operation will increase if the
vehicle is being driven.
For vehicles with heated outside rearview mirrors, the
mirrors heat to help clear fog or frost from the surface
of the mirror when the rear window defog button is
pressed. SeeOutside Power Mirrors on page 2-32.
Do not drive the vehicle until all the windows are clear.
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.
3-22

DRIVER DOOR OPEN
This message displays when the driver door is not
closed properly. Make sure that the door is closed
completely.
ENGINE HOT A/C
(Air Conditioning) OFF
This message displays when the engine
coolant becomes hotter than the normal operating
temperature. To avoid added strain on a hot engine,
the air conditioning compressor is automatically turned
off. When the coolant temperature returns to normal, the
A/C operation automatically resumes. You can continue
to drive your vehicle. If this message continues to appear,
have the system repaired by your dealer/retailer as soon
as possible to avoid compressor damage.
ENGINE OVERHEATED IDLE ENGINE
Notice:If you drive your vehicle while the engine
is overheating, severe engine damage may occur.
If an overheat warning appears on the instrument
panel cluster and/or DIC, stop the vehicle as soon as
possible. Do not increase the engine speed above
normal idling speed. SeeEngine Overheating
on page 5-31for more information.
This message displays when the engine coolant
temperature is too hot. Stop and allow the vehicle to
idle until it cools down.
ENGINE OVERHEATED STOP ENGINE
Notice:If you drive your vehicle while the engine
is overheating, severe engine damage may occur.
If an overheat warning appears on the instrument
panel cluster and/or DIC, stop the vehicle as soon
as possible. SeeEngine Overheating on page 5-31
for more information.
This message displays along with a continuous chime
when the engine has overheated. Stop and turn the
engine off immediately to avoid severe engine damage.
SeeEngine Overheating on page 5-31.
3-51

PASSENGER DOOR OPEN
This message displays when the front passenger door
is not closed properly. Make sure that the door is closed
completely.
REMOTE KEY LEARNING ACTIVE
This message displays while you are matching a
Remote Keyless Entry (RKE) transmitter to your vehicle.
See “Matching Transmitter(s) to Your Vehicle” under
Remote Keyless Entry (RKE) System Operation on
page 2-5andDIC Operation and Displays on page 3-42
for more information.
REPLACE BATTERY IN REMOTE KEY
This message displays when the battery in the Remote
Keyless Entry (RKE) transmitter needs to be replaced.
To replace the battery, see “Battery Replacement” under
Remote Keyless Entry (RKE) System Operation on
page 2-5.
RIGHT REAR DOOR OPEN
This message displays when the passenger side rear
door is not closed properly. Make sure that the door
is closed completely.
SERVICE A/C (Air Conditioning)
SYSTEM
This message displays when the electronic sensors that
control the air conditioning and heating systems are no
longer working. Have the climate control system serviced
by your dealer/retailer if you notice a drop in heating and
air conditioning efficiency.
SERVICE AIR BAG
This message displays when there is a problem with
the airbag system. Have your vehicle serviced by your
dealer/retailer immediately. SeeAirbag Readiness
Light on page 3-28for more information.
SERVICE BATTERY CHARGING
SYSTEM
This message displays when there is a problem with the
generator and battery charging systems. Driving with this
problem could drain the battery. Turn off all unnecessary
accessories. Stop and turn off the vehicle as soon as it is
safe to do so. Have the electrical system checked by your
dealer/retailer immediately.
3-53

(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 index and speed rating of the
tire. The load index represents the load carry
capacity a tire is certied to carry. The speed
rating is the maximum speed a tire is certied to
carry a load.
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.
Bias Ply Tire
:A pneumatic tire in which the plies
are laid at alternate angles less than 90 degrees
to the centerline of the tread.
5-57