warning light CHEVROLET IMPALA 2006 9.G User Guide

Charging System Light
The charging system light
will come on briey when
you turn on the ignition,
but the engine is not
running, as a check to
show you it is working.
It should go out once the engine is running. If it stays
on, or comes on while you are driving, you may have
a problem with the charging system. It could indicate
that you have problems with a generator drive belt,
or another electrical problem. Have it checked
right away. Driving while this light is on could drain
your battery.
If you must drive a short distance with the light on,
be certain to turn off all your accessories, such as the
radio and air conditioner.
Brake System Warning Light
Your vehicle’s hydraulic brake system is divided into
two parts. If one part is not working, the other part can
still work and stop you. For good braking, though,
you need both parts working well.
If the warning light comes on, there is a brake problem.
Have your brake system inspected right away.
This light should come on briey when you turn the
ignition key to RUN. If it does not come on then, have it
xed so it will be ready to warn you if there is a problem.
United StatesCanada
3-30

When the ignition is on, the brake system warning light
will also come on when you set your parking brake.
The light will stay on if your parking brake does
not release fully. If it stays on after your parking brake is
fully released, it means you have a brake problem.
If the light comes on while you are driving, pull off the
road and stop carefully. You may notice that the pedal is
harder to push, or the pedal may go closer to the
oor. It may take longer to stop. If the light is still on,
have the vehicle towed for service. SeeTowing
Your Vehicle on page 4-34.
{CAUTION:
Your brake system may not be working
properly if the brake system warning light is
on. Driving with the brake system warning light
on can lead to an accident. If the light is still
on after you have pulled off the road and
stopped carefully, have the vehicle towed
for service.
Anti-Lock Brake System
Warning Light
Your vehicle may have an
Anti-Lock Brake System
(ABS) warning light.
It should come on for a few seconds when you turn the
ignition key to RUN.
If the ABS warning light stays on longer than normal
after you have started your engine, turn the ignition off
or, if the light comes on and stays on when you are
driving, stop as soon as possible and turn the ignition
off. Then start the engine again to reset the system.
If the light still stays on, or comes on again while you are
driving, the ABS needs service and you do not have
anti-lock brakes.
The ABS warning light should come on briey when you
turn the ignition key to RUN. This is normal. If the
light does not come on then, have it xed so it will be
ready to warn you if there is a problem.
3-31

Traction Control System (TCS)
Warning Light
For vehicles equipped with
the traction control system,
this warning light should
come on briey when
the engine is started.
If the warning light does not come on then, have it xed
so it will be ready to warn you if there is a problem.
If it stays on, or comes on when you are driving, there
may be a problem with your traction control system
and your vehicle may need service. When this warning
light is on, the system will not limit wheel spin. Adjust
your driving accordingly.
If the traction control system warning light comes on
and stays on for an extended period of time when
the system is turned on, your vehicle needs service.
SeeTraction Control System (TCS) on page 4-9
for more information.
Engine Coolant Temperature
Warning Light
The engine coolant
temperature warning light
will come on when the
engine has overheated.
If this happens you should pull over and turn off the
engine as soon as possible. SeeEngine Overheating on
page 5-29for more information.
Notice:Driving with the engine coolant temperature
warning light on could cause your vehicle to
overheat. SeeEngine Overheating on page 5-29.
Your vehicle could be damaged, and it might not be
covered by your warranty. Never drive with the
engine coolant temperature warning light on.
This light will also come on when starting your vehicle.
If it doesn’t, have your vehicle serviced.
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AUTOMATIC LIGHT CONTROL OFF
This message will display when the automatic
headlamps are turned off. SeeDaytime Running Lamps
(DRL)/Automatic Headlamp System on page 3-14for
more information.
AUTOMATIC LIGHT CONTROL ON
This message will display when the automatic
headlamps are turned on. SeeDaytime Running Lamps
(DRL)/Automatic Headlamp System on page 3-14for
more information.
CHANGE ENGINE OIL SOON
This message will display when service is required for
the vehicle. See your GM dealer. SeeEngine Oil
on page 5-17andScheduled Maintenance on page 6-4
for more information.
Acknowledging the CHANGE ENGINE OIL SOON
message will not reset the OIL LIFE REMAINING. That
must be done at the OIL LIFE screen under the
vehicle information menu. See “Oil Life” underDIC
Operation and Displays on page 3-39andEngine Oil
Life System on page 5-20.
CHECK TIRE PRESSURE
If your vehicle has a Tire Pressure Monitor (TPM)
system, this message will display when the tire pressure
in one of the tires needs to be checked. This message
will also display LEFT FRONT, RIGHT FRONT,
LEFT REAR, or RIGHT REAR to indicate which tire
needs to be checked. You can receive more than one
tire pressure message at a time. To read the other
messages that may have been sent at the same time,
press the set/reset button. If a tire pressure message
appears on the DIC, stop as soon as you can. Have the
tire pressures checked and set to those shown on
your Tire Loading Information Label. SeeTires
on page 5-54,Loading Your Vehicle on page 4-29, and
Ination - Tire Pressure on page 5-60. The DIC
display also shows the tire pressure values for the front
and rear tires by pressing the vehicle information
button. SeeDIC Operation and Displays on page 3-39.
If the tire pressure is low, the low tire pressure
warning light will come on. SeeTire Pressure Light
on page 3-33.
DRIVER DOOR OPEN
This message will display when the driver’s door is not
closed properly. When this message appears, you
should make sure that the driver’s door is closed
completely.
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ERROR
This message will display when viewing the odometer or
trip odometers if there is a problem with the instrument
panel cluster. See your GM dealer for service.
FUEL LEVEL LOW
This message will display when your vehicle is low on
fuel. You should rell the fuel tank as soon as possible.
SeeFuel Gage on page 3-38andFilling the Tank on
page 5-8for more information.
HOOD OPEN
If your vehicle has the remote start feature, this
message will display when the hood is not closed
properly. When this message appears, you should make
sure that the hood is closed completely. SeeHood
Release on page 5-11.
ICE POSSIBLE DRIVE WITH CARE
This message will display when the outside air
temperature is cold enough to create icy road conditions.
Adjust your driving accordingly.
LEFT REAR DOOR OPEN
This message will display when the driver’s side rear
door is not closed properly. When this message
appears, you should make sure that the driver’s side
rear door is closed completely.
OIL PRESSURE LOW STOP ENGINE
Notice:If you drive your vehicle while the engine
oil pressure is low, severe engine damage may
occur. If a low oil pressure warning appears on the
Driver Information Center (DIC), stop the vehicle
as soon as possible. Do not drive the vehicle until
the cause of the low oil pressure is corrected.
SeeEngine Oil on page 5-17for more information.
This message will display when the vehicle’s engine
oil pressure is low. The oil pressure light will also appear
on the instrument panel cluster. SeeOil Pressure
Light on page 3-36.
Stop the vehicle immediately, as engine damage can
result from driving a vehicle with low oil pressure. Have
the vehicle serviced by your GM dealer as soon as
possible when this message is displayed.
3-48

SERVICE BRAKE SYSTEM
This message will display when service is required on
the brake system. Have the brake system serviced
by your GM dealer as soon as possible. The brake
system warning light will also appear on the instrument
panel cluster when this message appears on the
DIC. SeeBrake System Warning Light on page 3-30.
SERVICE POWER STEERING
This message will display 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 GM dealer immediately.
SERVICE THEFT SYSTEM
This message will display 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 GM dealer
before turning off the engine. SeePASS-Key
®III+
Operation on page 2-19for more information.
SERVICE TIRE MONITOR SYSTEM
If your vehicle has a Tire Pressure Monitor (TPM)
system, this message will display if a part on the system
is not working properly. If you drive your vehicle while
any of the four sensors are missing or inoperable,
the warning will come on in about 10 minutes. A sensor
would be missing, for example, if you put different
wheels on your vehicle without transferring the sensors.
If the warning comes on and stays on, there may be
a problem with the TPM. See your GM dealer.
SERVICE TRACTION CONTROL
If your vehicle has the traction control system, this
message will display when the system is not functioning
properly. A warning light will also appear on the
instrument panel cluster. SeeTraction Control System
(TCS) Warning Light on page 3-32. SeeTraction Control
System (TCS) on page 4-9for more information.
Have the traction control system serviced by your
GM dealer as soon as possible.
SERVICE TRANSMISSION
This message will display when there is a problem with
the transaxle. See your GM dealer for service.
3-50

Control of a Vehicle
You have three systems that make your vehicle go where
you want it to go. They are the brakes, the steering, and
the accelerator. All three systems have to do their work at
the places where the tires meet the road.
Sometimes, as when you are driving on snow or ice,
it is easy to ask more of those control systems than the
tires and road can provide. That means you can lose
control of your vehicle. SeeTraction Control System
(TCS) on page 4-9.
Adding non-GM accessories can affect your vehicle’s
performance. SeeAccessories and Modications
on page 5-3.
Braking
SeeBrake System Warning Light on page 3-30.
Braking action involves perception time and
reaction time.
First, you have to decide to push on the brake pedal.
That is perception time. Then you have to bring up your
foot and do it. That is reaction time.
Average reaction time is about three-fourths of a
second. But that is only an average. It might be less
with one driver and as long as two or three seconds
or more with another. Age, physical condition, alertness,
coordination, and eyesight all play a part. So do
alcohol, drugs, and frustration.But even in three-fourths of a second, a vehicle moving
at 60 mph (100 km/h) travels 66 feet (20 m). That
could be a lot of distance in an emergency, so keeping
enough space between your vehicle and others is
important.
And, of course, actual stopping distances vary greatly
with the surface of the road, whether it is pavement or
gravel; the condition of the road, whether it is wet, dry, or
icy; tire tread; the condition of the brakes; the weight of
the vehicle; and the amount of brake force applied.
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 may 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 may 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 may take longer to stop and
the brake pedal will be harder to push.
Adding non-GM accessories can affect your vehicle’s
performance. SeeAccessories and Modications
on page 5-3.
4-6

Anti-Lock Brake System (ABS)
Your vehicle may have the Anti-Lock 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 your engine, or when you begin to drive
away, ABS will check itself. You may hear a momentary
motor or clicking noise while this test is going on,
and you may even notice that your 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.
4-7

The traction control system operates in all transaxle
shift lever positions. But the system can upshift
the transaxle only as high as the shift lever position
you’ve chosen, so you should use the lower gears only
when necessary. SeeAutomatic Transaxle Operation
on page 2-25.
When the system is on,
this warning light will
come on and stay on
to let you know if there’s
a problem.
A SERVICE TRACTION CONTROL message will
also appear on the DIC. When this warning light is
on, the system will not limit wheel spin. Adjust your
driving accordingly.
To limit wheel spin, especially in slippery road
conditions, you should always leave the traction control
system on. But you can turn the system off if you
ever need to. You should turn the system off if your
vehicle ever gets stuck in sand, mud or snow and
rocking the vehicle is required. SeeRocking Your
Vehicle to Get It Out on page 4-29andIf Your Vehicle
is Stuck in Sand, Mud, Ice, or Snow on page 4-28
for more information.To turn the system on or
off, press the traction
control button located on
the left side of the
instrument panel.
When you turn the system off, a chime will sound,
the traction control warning light will come on and
stay on and a TRACTION CONTROL OFF message
will appear on the DIC. If the traction control system
is limiting wheel spin when you press the button to turn
the system off, the warning light will come on and
the system will turn off right away.
You can turn the system back on at any time by
pressing the button again. The traction control light
should go off.
Adding non-GM accessories can affect your vehicle’s
performance. SeeAccessories and Modications
on page 5-3for more information.
4-10

Hydroplaning
Hydroplaning is dangerous. So much water can build
up under your tires that they can actually ride on
the water. This can happen if the road is wet enough
and you are going fast enough. When your vehicle
is hydroplaning, it has little or no contact with the road.
Hydroplaning does not happen often. But it can if
your tires do not have much tread or if the pressure in
one or more is low. It can happen if a lot of water is
standing on the road. If you can see reections
from trees, telephone poles, or other vehicles, and
raindrops dimple the water’s surface, there could be
hydroplaning.
Hydroplaning usually happens at higher speeds. There
just is not a hard and fast rule about hydroplaning.
The best advice is to slow down when it is raining.
Driving Through Deep Standing Water
Notice:If you drive too quickly through deep
puddles or standing water, water can come in
through your engine’s air intake and badly damage
your engine. Never drive through water that is
slightly lower than the underbody of your vehicle.
If you cannot avoid deep puddles or standing water,
drive through them very slowly.
Driving Through Flowing Water
{CAUTION:
Flowing or rushing water creates strong forces.
If you try to drive through owing water, as you
might at a low water crossing, your vehicle can
be carried away. As little as six inches of
owing water can carry away a smaller vehicle.
If this happens, you and other vehicle
occupants could drown. Do not ignore police
warning signs, and otherwise be very cautious
about trying to drive through owing water.
Some Other Rainy Weather Tips
Besides slowing down, allow some extra following
distance. And be especially careful when you
pass another vehicle. Allow yourself more clear
room ahead, and be prepared to have your
view restricted by road spray.
Have good tires with proper tread depth. SeeTires
on page 5-54.
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