2011 CHEVROLET IMPALA cooling

Black plate (12,1)Chevrolet Impala Owner Manual - 2011
1-12 In Brief
Climate Controls
This vehicle may have a dual or single climate control system.
The heating, cooling, defrost, defog, and ventilation can be controlled
with either of these systems.
Dual Zone with Optional Heated Seat Controls
A. Fan Control
B. Outside Air
C. Recirculation
D. Air Delivery Mode Control
E. Air Conditioning F. Driver and Passenger Heated
Seats
G. Driver and Passenger Temperature Controls
H. Rear Window Defogger

Black plate (1,1)Chevrolet Impala Owner Manual - 2011
Instruments and Controls 5-1
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . 5-2
Steering Wheel Controls . . . . . . 5-3
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Windshield Wiper/Washer . . . . . 5-4
Compass . . . . . . . . . . . . . . . . . . . . . 5-5
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Power Outlets . . . . . . . . . . . . . . . . . 5-9
Cigarette Lighter . . . . . . . . . . . . . . 5-9
Ashtrays . . . . . . . . . . . . . . . . . . . . . 5-10
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . 5-10
Instrument Cluster . . . . . . . . . . . 5-11
Speedometer . . . . . . . . . . . . . . . . 5-12
Odometer . . . . . . . . . . . . . . . . . . . . 5-12
Tachometer . . . . . . . . . . . . . . . . . . 5-12
Fuel Gauge . . . . . . . . . . . . . . . . . . 5-12 Engine Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 5-13
Safety Belt Reminders . . . . . . . 5-14
Airbag Readiness Light . . . . . . 5-15
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . 5-16
Charging System Light . . . . . . 5-16
Malfunction Indicator Lamp . . . . . . . . . . . . . 5-17
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . 5-19
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . 5-20
Electronic Stability Control (ESC) Indicator Light . . . . . . . 5-21
Traction Control System (TCS) Warning Light . . . . . . . 5-21
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . 5-22
Tire Pressure Light . . . . . . . . . . 5-22
Engine Oil Pressure Light . . . . 5-23
Security Light . . . . . . . . . . . . . . . . 5-23
High-Beam on Light . . . . . . . . . 5-24
Front Fog Lamp Light . . . . . . . . 5-24
Cruise Control Light . . . . . . . . . 5-24
Information Displays
Driver Information Center (DIC) . . . . . . . . . . . . . . . 5-24
Vehicle Messages
Vehicle Messages . . . . . . . . . . . 5-28
Battery Voltage and ChargingMessages . . . . . . . . . . . . . . . . . . 5-29
Brake System Messages . . . . 5-29
Door Ajar Messages . . . . . . . . . 5-29
Engine Cooling System Messages . . . . . . . . . . . . . . . . . . 5-30
Engine Oil Messages . . . . . . . . 5-31
Engine Power Messages . . . . 5-31
Fuel System Messages . . . . . . 5-32
Key and Lock Messages . . . . . 5-32
Lamp Messages . . . . . . . . . . . . . 5-32
Ride Control System Messages . . . . . . . . . . . . . . . . . . 5-32
Airbag System Messages . . . . 5-33
Anti-Theft Alarm System Messages . . . . . . . . . . . . . . . . . . 5-34
Service Vehicle Messages . . . 5-34
Tire Messages . . . . . . . . . . . . . . . 5-34
Transmission Messages . . . . . 5-35
Vehicle Reminder Messages . . . . . . . . . . . . . . . . . . 5-36
Washer Fluid Messages . . . . . 5-36

Black plate (30,1)Chevrolet Impala Owner Manual - 2011
5-30 Instruments and Controls
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.
TRUNK OPEN
This message displays when the
trunk is not closed completely.
Make sure that the trunk is closed
completely. SeeTrunk on
page 2‑10.
Engine Cooling System
Messages
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 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.
See Engine Overheating on
page 10‑19 for 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 the 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.
See Engine Overheating on
page 10‑19 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. See Engine
Overheating on page 10‑19.
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.

Black plate (8,1)Chevrolet Impala Owner Manual - 2011
6-8 Lighting
If the vehicle has a voltmeter gauge
or a 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 are on, such
as: 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. If this messages
displays, it is recommended that the
driver reduce the electrical loads as
much as possible. See
Driver
Information Center (DIC) on
page 5‑24.Battery Power Protection
This feature helps prevent the
battery from being drained, if the
interior courtesy lamps, reading/map
lamps, visor vanity lamps, or trunk
lamp are accidentally left on. If any
of these lamps are left on, they
automatically turn off after
10 minutes, if the ignition is off.
The lamps will not come back
on again until one of the
following occurs:
.The ignition is turned on.
.The exterior lamps control is
turned off, then on again.
The headlamps will time out after
10 minutes, if they are manually
turned on with the ignition on or off.

Black plate (1,1)Chevrolet Impala Owner Manual - 2011
Climate Controls 8-1
Climate Controls
Climate Control Systems
Climate Control Systems . . . . . . 8-1
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . . 8-5
Maintenance
Passenger Compartment AirFilter . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
Climate Control Systems
This vehicle may have a dual or single climate control system. The heating,
cooling, defrost, defog and ventilation can be controlled with this system.
For vehicles with heated seats, see Heated Front Seats on page 3‑7.
Dual Zone with Optional Heated Seat Controls
A. Fan Control
B. Outside Air
C. Recirculation
D. Air Delivery Mode Control
E. Air Conditioning F. Driver and Passenger
Heated Seats
G. Driver and Passenger Temperature Controls
H. Rear Window Defogger

Black plate (3,1)Chevrolet Impala Owner Manual - 2011
Climate Controls 8-3
Air Delivery Mode Control:Turn
clockwise or counterclockwise to
change the direction of the airflow
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 floor outlets.
6(Floor): Air is directed to the
floor 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 floor outlets. When defog is
selected, the system turns off
recirculation and runs the air
conditioning compressor unless the
outside temperature is below
4°C (40°F).
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 floor 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
4°C (40°F).
#(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 flashing 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.
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.

Black plate (8,1)Chevrolet Impala Owner Manual - 2011
9-8 Driving and Operating
Highway Hypnosis
Always be alert and pay attention to
your surroundings while driving.
If you become tired or sleepy, find a
safe place to park your vehicle
and rest.
Other driving tips include:
.Keep the vehicle well ventilated.
.Keep interior temperature cool.
.Keep your eyes moving—scan
the road ahead and to the sides.
.Check the rearview mirror and
vehicle instruments often.
Hill and Mountain Roads
Driving on steep hills or through
mountains is different than driving
on flat or rolling terrain. Tips for
driving in these conditions include:
.Keep the vehicle serviced and in
good shape.
.Check all fluid levels and brakes,
tires, cooling system, and
transmission.
.Shift to a lower gear when going
down steep or long hills.
{WARNING
If you do not shift down, the
brakes could get so hot that they
would not work well. You would
then have poor braking or even
none going down a hill. You could
crash. Shift down to let the engine
assist the brakes on a steep
downhill slope.

Black plate (44,1)Chevrolet Impala Owner Manual - 2011
9-44 Driving and Operating
Maintenance When Trailer
Towing
The vehicle needs service more
often when pulling a trailer. See
Scheduled Maintenance on
page 11‑2for more information.
Things that are especially important
in trailer operation are automatic
transmission fluid, engine oil, belts,
cooling system and brake system.
It is a good idea to inspect these
before and during the trip.
Check periodically to see that all
hitch nuts and bolts are tight.
Engine Cooling When Trailer
Towing
The cooling system may temporarily
overheat during severe operating
conditions. See Engine Overheating
on page 10‑19.
Changing a Tire When Trailer
Towing
If the vehicle gets a flat tire while
towing a trailer, be sure to secure
the trailer and disconnect it from the
vehicle before changing the tire.
Trailer Towing
{WARNING
The driver can lose control when
pulling a trailer if the correct
equipment is not used or the
vehicle is not driven properly.
For example, if the trailer is too
heavy, the brakes may not work
well —or even at all. The driver
and passengers could be
seriously injured. The vehicle may
also be damaged; the resulting
repairs would not be covered by
the vehicle warranty. Pull a trailer
only if all the steps in this section
have been followed.
(Continued)
WARNING (Continued)
Ask your dealer for advice and
information about towing a trailer
with the vehicle.
Notice: Pulling a trailer
improperly can damage the
vehicle and result in costly
repairs not covered by the
vehicle warranty. To pull a trailer
correctly, follow the advice in this
section and see your dealer for
important information about
towing a trailer with the vehicle.
The vehicle can tow a trailer if it is
equipped with the proper trailer
towing equipment. To identify the
trailering capacity of the vehicle,
read the information in “Weight of
the Trailer” that appears later in this
section. Trailering is different than
just driving the vehicle by itself.
Trailering means changes in
handling, acceleration, braking,
durability and fuel economy.