2008 CHEVROLET IMPALA instrument cluster

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 3-31for 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.
SERVICE BRAKE SYSTEM
This message displays when service is required on the
brake system. Have the brake system serviced by
your dealer/retailer as soon as possible. The brake
system warning light also appears on the instrument
panel cluster when this message appears on the DIC.
SeeBrake System Warning Light on page 3-34.
SERVICE POWER STEERING
This message displays when a problem is detected with
the power steering system. When this message is
displayed, you may notice that the effort required to
steer the vehicle increases or feels heavier, but you will
still be able to steer the vehicle. Have your vehicle
serviced by your dealer/retailer immediately.
SERVICE STABILITRAK
If your vehicle has Electronic Stability Control (ESC),
this message displays if there has been a problem
detected with ESC. The ESC/TCS light also appears on
the instrument panel cluster. SeeElectronic Stability
Control on page 4-7for more information.
If this message turns on while you are driving, pull off the
road as soon as possible and stop carefully. Try resetting
the system by turning the ignition off and then back on.
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If this message still stays on or turns back on again while
you are driving, your vehicle needs service. Have the
system inspected by your dealer/retailer as soon as
possible.
SERVICE THEFT SYSTEM
This message displays when there is a problem with the
theft-deterrent system programmed in the key. A fault
has been detected in the system which means that
the system is disabled and it is not protecting the
vehicle. The vehicle usually restarts; however, you may
want to take the vehicle to your dealer/retailer before
turning off the engine. SeePASS-Key
®III+ Operation on
page 2-20for more information.
SERVICE TIRE MONITOR SYSTEM
This message displays if a part on the Tire Pressure
Monitor System (TPMS) is not working properly. The tire
pressure light also ashes and then remains on during
the same ignition cycle. SeeTire Pressure Light on
page 3-38. Several conditions may cause this message
to appear. SeeTire Pressure Monitor Operation on
page 5-64for more information. If the warning comes on
and stays on, there may be a problem with the TPMS.
See your dealer/retailer.
SERVICE TRACTION CONTROL
If your vehicle has the Traction Control System (TCS),
this message displays when the system is not
functioning properly. A warning light also appears on the
instrument panel cluster. SeeTraction Control System
(TCS) Warning Light on page 3-36. SeeTraction Control
System (TCS) on page 4-6for more information.
Have the TCS serviced by your dealer/retailer as soon
as possible.
SERVICE TRANSMISSION
This message displays when there is a problem with the
transmission. See your dealer/retailer for service.
SERVICE VEHICLE SOON
This message displays when a non-emissions related
malfunction occurs. Have the vehicle serviced by
your dealer/retailer as soon as possible.
STABILITRAK NOT READY
If your vehicle has Electronic Stability Control (ESC),
this message may display and the ESC/TCS light on the
instrument panel cluster may be on after rst driving
the vehicle and exceeding 19 mph (30 km/h) for
30 seconds. The ESC system is not functional until the
light has turned off. SeeElectronic Stability Control
on page 4-7for more information.
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Avoid needless heavy braking. Some people drive
in spurts — heavy acceleration followed by heavy
braking — rather than keeping pace with traffic.
This is a mistake. The brakes might not have time to
cool between hard stops. The brakes will wear out
much faster if you do a lot of heavy braking. If you
keep pace with the traffic and allow realistic following
distances, you will eliminate a lot of unnecessary
braking. That means better braking and longer
brake life.
If your vehicle’s engine ever stops while you are driving,
brake normally but do not pump the brakes. If you do,
the pedal could get harder to push down. If the
engine stops, you will still have some power brake
assist. But you will use it when you brake. Once the
power assist is used up, it can take longer to stop and
the brake pedal will be harder to push.
Adding non-dealer/non-retailer accessories can affect
your vehicle’s performance. SeeAccessories and
Modifications on page 5-3.Antilock Brake System (ABS)
Your vehicle might have the Antilock Brake System
(ABS), an advanced electronic braking system that will
help prevent a braking skid.
If your vehicle has ABS,
this warning light on the
instrument panel cluster will
come on briey when you
start your vehicle.
When you start the engine, or when you begin to drive
away, ABS will check itself. You might hear a
momentary motor or clicking noise while this test is
going on, and you might even notice that the brake
pedal moves or pulses a little. This is normal.
Let us say the road is wet and you are driving safely.
Suddenly, an animal jumps out in front of you. You slam
on the brakes and continue braking. Here is what
happens with ABS:
A computer senses that wheels are slowing down.
If one of the wheels is about to stop rolling, the computer
will separately work the brakes at each front wheel
and at both rear wheels.
4-4

This light will ash on the
instrument panel cluster
when the ESC system
is both on and activated.
You may also feel or hear the system working;
this is normal.
When the light is on solid and the SERVICE
STABILITRAK message is displayed, the system
will not assist the driver in maintaining directional
control of the vehicle. Adjust your driving accordingly.
SeeDIC Warnings and Messages on page 3-52.
The Electronic Stability Control (ESC) system is
automatically enabled whenever you start your vehicle.
To assist the driver with vehicle directional control,
especially in slippery road conditions, you should always
leave the system on. But, you can turn ESC off if you
ever need to.
If the vehicle is in cruise control when the system
begins to assist the driver maintain directional
control of the vehicle, the ESC/TCS light will ash
and the cruise control will automatically disengage.
When road conditions allow you to use cruise again, you
may re-engage the cruise control. SeeCruise Control
on page 3-10.The ESC/TCS button
is located on the
instrument panel.
The traction control system can be turned off or
back on by pressing the ESC/TCS button. To disable
both traction control and ESC, press and hold the
button briey.
When the ESC system is turned off, the TRACTION
CONTROL OFF message will appear, and the ESC/TCS
light will be on solid to warn the driver that both
traction control and ESC are disabled.
It is recommended to leave the system on for normal
driving conditions, but it may be necessary to turn the
system off if your vehicle is stuck in sand, mud,
ice or snow, and you want to “rock” your vehicle to
attempt to free it. It may also be necessary to turn
off the system when driving in extreme off-road conditions
where high wheel spin is required. SeeIf Your Vehicle is
Stuck in Sand, Mud, Ice, or Snow on page 4-20.
ESC may also turn off automatically if it determines that
a problem exists with the system. The SERVICE
STABILITRAK message and the ESC/TCS light will be
on solid to warn the driver that ESC is disabled and
4-8

Federal Communications
Commission (FCC) and Industry
and Science Canada
The Tire Pressure Monitor System (TPMS) operates on
a radio frequency and complies with Part 15 of the
FCC Rules. Operation is subject to the following
two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation.
The Tire Pressure Monitor System (TPMS) operates
on a radio frequency and complies with RSS-210
of Industry and Science Canada. Operation is subject to
the following two conditions:
1. This device may not cause interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation of the device.
Changes or modications to this system by other than
an authorized service facility could void authorization to
use this equipment.
Tire Pressure Monitor Operation
The Tire Pressure Monitor System (TPMS) is designed
to warn the driver when a low tire pressure condition
exists. TPMS sensors are mounted onto each tire
and wheel assembly, excluding the spare tire and wheel
assembly. The TPMS sensors monitor the air pressure
in the vehicle’s tires and transmits the tire pressure
readings to a receiver located in the vehicle.
When a low tire pressure
condition is detected, the
TPMS illuminates the
low tire pressure warning
light located on the
instrument panel cluster.
5-64

G
Gage
Engine Coolant Temperature.........................3-38
Fuel..........................................................3-43
Speedometer..............................................3-29
Tachometer.................................................3-29
Garage Door Opener.......................................2-41
Gasoline
Octane........................................................ 5-6
Specications............................................... 5-6
Glove Box.....................................................2-48
GM Mobility Reimbursement Program.................. 7-6
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-7
Headlamp
Aiming.......................................................5-47
Headlamp Wiring............................................5-99
Headlamps
Bulb Replacement.......................................5-47
Daytime Running Lamps/Automatic Headlamp
System...................................................3-16
Delayed.....................................................3-15
Exterior Lamps............................................3-14Headlamps (cont.)
Flash-to-Pass............................................... 3-9
Halogen Bulbs............................................5-47
Headlamps, Front Turn Signal, Sidemarker,
and Parking Lamps..................................5-48
High/Low Beam Changer................................ 3-8
Heated Seats................................................... 1-4
Heater...........................................................3-22
Highbeam On Light.........................................3-43
Highway Hypnosis...........................................4-14
Hill and Mountain Roads..................................4-15
Hood
Checking Things Under................................5-12
Release.....................................................5-13
Horn............................................................... 3-6
How to Wear Safety Belts Properly...................1-15
I
Ignition Positions.............................................2-22
Infants and Young Children, Restraints...............1-34
Ination - Tire Pressure...................................5-61
Instrument Panel
Overview..................................................... 3-4
Instrument Panel (I/P)
Brightness..................................................3-17
Cluster.......................................................3-28
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