warning light CHEVROLET COBALT 2007 1.G User Guide

Speedometer and Odometer
Your speedometer lets you see your speed
in both miles per hour (mph) and kilometers
per hour (km/h).
Your vehicle’s odometer works together with the
driver information center. You can set a Trip A and
Trip B odometer. See “Trip Information” under
DIC Operation and Displays on page 181.
The odometer mileage can be checked without
the vehicle running. Simply open the driver’s door
and the mileage will be displayed briey.
If your vehicle ever needs a new odometer
installed, the new one will be set to the correct
mileage total of the old odometer.
Tachometer
The tachometer displays the engine speed in
revolutions per minute (rpm).
Notice:If you operate the engine with the
tachometer in the shaded warning area, your
vehicle could be damaged, and the damages
would not be covered by your warranty.
Do not operate the engine with the tachometer
in the shaded warning area.
Safety Belt Reminder Light
When the key is turned to RUN or START, a chime
will sound for several seconds to remind you and
your passengers to buckle your safety belts.
The driver safety belt light will also come on and
stay on for several seconds, then it will ash for
several more.
You should buckle your
seat belt.
If the vehicle is equipped with the passenger
sensing system, this chime and light will be
repeated if the driver remains unbuckled and
the vehicle is in motion. If the driver’s belt
is buckled, neither the chime nor the light will
come on. SeePassenger Sensing System
on page 77for more information.
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Up-Shift Light
Your vehicle may have an up-shift light. When
this light comes on, you should shift to the
next higher gear if weather, road, and traffic
conditions allow you to.
This light is located in
your instrument panel
cluster to the left of
the tachometer.
SeeManual Transaxle Operation on page 121
for more information.
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.
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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. Make sure the parking
brake is fully released. 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 264.
{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.
The ABS warning light will 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.
If the light stays on, turn the ignition off, if the light
comes 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,
your vehicle needs service. If the regular brake
system warning light is not on, you still have brakes,
but you do not have anti-lock brakes. If the regular
brake system warning light is also on, you do not
have anti-lock brakes and there is a problem with
your regular brakes. SeeBrake System Warning
Light on page 171.
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Enhanced Traction System
Warning Light
If your vehicle has the
Enhanced Traction
System (ETS), this
warning light should
come on briey as you
start the engine.
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 the warning light stays on, or comes on when
you are driving, there may be a problem with your
ETS and your vehicle may need service. When
this warning light is on, the system will not
limit wheel spin. Adjust your driving accordingly.The ETS warning light may come on for the
following reasons:
If you turn the system off by moving the shift
lever to LOW (L), the warning light will come
on and stay on. To turn the system back
on, move the shift lever back to a position
other than LOW (L). The warning light should
go off. SeeEnhanced Traction System
(ETS) on page 234for more information.
The warning light will come on when you set
your parking brake with the engine running,
and it will stay on if your parking brake
does not release fully. If the transaxle shift
lever is in any position other than LOW (L) and
the warning light stays on after your parking
brake is fully released, it means there is
a problem with the system.
If the traction control system is affected by an
engine-related problem, the system will turn
off and the warning light will come on.
If the ETS warning light comes on and stays on
for an extended period of time when the transaxle
shift lever is in any position other than LOW (L),
your vehicle needs service.
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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 309for more information.
Notice:Driving with the engine coolant
temperature warning light on could cause your
vehicle to overheat. SeeEngine Overheating
on page 309. 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 briey when starting
your vehicle. If it does not, have your vehicle
serviced.
Malfunction Indicator Lamp
Check Engine Light
Your vehicle has a
computer which
monitors operation
of the fuel, ignition,
and emission control
systems.
This system is called OBD II (On-Board
Diagnostics-Second Generation) and is intended to
assure that emissions are at acceptable levels for
the life of the vehicle, helping to produce a cleaner
environment. The check engine light comes on
to indicate that there is a problem and service is
required. Malfunctions often will be indicated by
the system before any problem is apparent. This
may prevent more serious damage to your vehicle.
This system is also designed to assist your service
technician in correctly diagnosing any malfunction.
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DIC Warnings and Messages
These messages appear if there is a problem
detected in one of your vehicle’s systems.
A message will clear when the vehicle’s condition
is no longer present. To acknowledge a message
and clear it from the display, press and hold
any of the DIC buttons. If the condition is still
present, the warning message will come back on
the next time the vehicle is turned off and back
on. With most messages, a warning chime sounds
when the message displays. Your vehicle may
have other warning messages.
AUTO (Automatic) LIGHTS OFF
This message displays if the automatic headlamp
system is disabled with the headlamp switch.
AUTO (Automatic) LIGHTS ON
This message displays if the automatic headlamp
system is enabled with the headlamp switch.
BRAKE FLUID
This message displays to inform the driver that the
brake uid level is low while the ignition is on.
The brake system warning light on the instrument
panel cluster also comes on. SeeBrake System
Warning Light on page 171for more information.
Have the brake system serviced by your dealer
as soon as possible.
CHANGE OIL SOON
This message displays when the life of the engine
oil has expired and it should be changed.
When you acknowledge the CHANGE OIL SOON
message by clearing it from the display, you
still must reset the engine oil life system
separately. SeeEngine Oil Life System on
page 298andScheduled Maintenance on
page 396for more information.
CHECK GAS CAP
This message displays if the fuel cap has not
been fully tightened. Recheck the fuel cap to
make sure that it is on properly. A few driving
trips with the cap properly installed should turn
the message off.
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Control of a Vehicle
The following three systems help to control your
vehicle while driving — brakes, steering, and
accelerator. At times, as when driving on snow
or ice, it is easy to ask more of those control
systems than the tires and road can provide.
Meaning, you can lose control of your vehicle.
SeeEnhanced Traction System (ETS) on
page 234.
Adding non-dealer/non-retailer accessories can
affect your vehicle’s performance. SeeAccessories
and Modications on page 280.
Braking
SeeBrake System Warning Light on page 171.
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.
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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 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 280.Anti-Lock Brake System (ABS)
Your vehicle might 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 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.
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Enhanced Traction System (ETS)
Your vehicle may have an Enhanced Traction
System (ETS) that limits wheel spin. This is
especially useful in slippery road conditions.
The system operates only if it senses that one or
both of the front wheels are spinning or beginning to
lose traction. When this happens, the system
reduces engine power and may also upshift the
transaxle to limit wheel spin. You may feel or hear
the system working, but this is normal.
A LOW TRACTION message will appear on the
Driver Information Center (DIC) when the traction
control system is actively limiting wheel spin.
Slippery road conditions may exist if this message
is displayed, so adjust your driving accordingly.If your vehicle is in cruise control when the
Enhanced Traction System begins to limit wheel
spin, the cruise control will automatically
disengage. When road conditions allow you to
safely use it again, you may re-engage the cruise
control. SeeCruise Control on page 149.
When the system is on,
this warning light will
come on to let you know
there’s a problem.
If the warning light stays on, or comes on when
you’re driving, there may be a problem with
your Enhanced Traction System and your vehicle
may need service. When this warning light is
on, the system will not limit wheel spin. Adjust your
driving accordingly.
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The Enhanced Traction System warning light may
come on for the following reasons:
If you turn the system off by moving the shift
lever to LOW (L), the warning light will come
on and stay on. To turn the system back
on, move the shift lever back to a position
other than LOW (L). The warning light should
go off.
The warning light will come on when you set
your parking brake with the engine running,
and it will stay on if your parking brake
does not release fully. If the transaxle shift
lever is in any position other than LOW (L) and
the warning light stays on after your parking
brake is fully released, it means there is
a problem with the system.
If the traction control system is affected by an
engine related problem, the system will turn
off and the warning light will come on.If the Enhanced Traction System warning light
comes on and stays on for an extended period of
time when the transaxle shift lever is in any
position other than LOW (L), your vehicle needs
service.
Adding non-GM accessories can affect your
vehicle’s performance. SeeAccessories and
Modications on page 280for more information.
Limited-Slip Differential
Your vehicle may have this feature. A limited-slip
transaxle can give you additional traction on snow,
mud, ice, sand or gravel. It works like a standard
transaxle most of the time, but when one of the
front wheels loses traction, this feature will allow the
wheel with traction to move the vehicle.
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