light CHEVROLET COBALT 2007 1.G Workshop Manual

Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel.
SeeGasoline Octane on page 283. Poor fuel
quality will cause your engine not to run as
efficiently as designed. You may notice this
as stalling after start-up, stalling when you put
the vehicle into gear, misring, hesitation on
acceleration, or stumbling on acceleration.
(These conditions may go away once the engine
is warmed up.) This will be detected by the
system and cause the light to turn on.
If you experience one or more of these conditions,
change the fuel brand you use. It will require at
least one full tank of the proper fuel to turn the
light off.
If none of the above steps have made the light
turn off, your dealer can check the vehicle.
Your dealer has the proper test equipment and
diagnostic tools to x any mechanical or electrical
problems that may have developed.Emissions Inspection and
Maintenance Programs
Some state/provincial and local governments have
or may begin programs to inspect the emission
control equipment on your vehicle. Failure to pass
this inspection could prevent you from getting a
vehicle registration.
Here are some things you need to know to help
your vehicle pass an inspection:
Your vehicle will not pass this inspection if the
check engine light is on or not working properly.
Your vehicle will not pass this inspection if the
OBD (on-board diagnostic) system determines that
critical emission control systems have not been
completely diagnosed by the system. The vehicle
would be considered not ready for inspection.
This can happen if you have recently replaced
your battery or if your battery has run down. The
diagnostic system is designed to evaluate critical
emission control systems during normal driving.
This may take several days of routine driving. If you
have done this and your vehicle still does not pass
the inspection for lack of OBD system readiness,
your dealer can prepare the vehicle for inspection.
177

Oil Pressure Light
If you have a low
engine oil pressure
problem, this light
will stay on after you
start your engine,
or come on when
you are driving.
This indicates that your engine is not receiving
enough oil.
The engine could be low on oil, or could have
some other oil problem. Have it xed immediately.
The oil light could also come on in three other
situations:
When the ignition is on but the engine is not
running, the light will come on as a test to show
you it is working, but the light will go out when
you turn the ignition to START. If it does not
come on with the ignition on, you may have a
problem with the fuse or bulb. Have it xed
right away.
If you are idling at a stop sign, the light may
blink on and then off.
If you make a hard stop, the light may come
on for a moment. This is normal.
{CAUTION:
Do not keep driving if the oil pressure is
low. If you do, your engine can become
so hot that it catches re. You or others
could be burned. Check your oil as soon
as possible and have your vehicle
serviced.
Notice:Lack of proper engine oil maintenance
may damage the engine. The repairs would
not be covered by your warranty. Always follow
the maintenance schedule in this manual for
changing engine oil.
178

Security Light
For information
regarding this light,
seeTheft-Deterrent
Systems on page 107.
Fog Lamp Light
Your vehicle may have
a fog lamps light. It will
come on when the
fog lamps are in use.
The light will go out when the fog lamps are
turned off. SeeFog Lamps on page 154for
more information.
Highbeam On Light
This light comes on
when the high-beam
headlamps are in use.
SeeHeadlamp High/Low-Beam Changer on
page 146for more information.
Fuel Gage
Your fuel gage tells
you about how much
fuel you have left.
179

Here are four things that some owners ask about.
None of these show a problem with your fuel gage:
At the service station, the gas pump shuts off
before the gage reads full.
It takes a little more or less fuel to ll up than
the gage indicated. For example, the gage may
have indicated the tank was half full, but it
actually took a little more or less than half the
tank’s capacity to ll the tank.
The gage moves a little when you turn a corner
or speed up.
The gage doesn’t go back to empty when you
turn off the ignition.
For your fuel tank capacity, seeCapacities and
Specications on page 390.
Boost Gage
If equipped, this gage is located near the driver’s
side of the instrument panel cluster.
This gage indicates vacuum during light to
moderate throttle and boost under heavier throttle.
This gage displays the air pressure level in the
intake manifold before it enters the engine’s
combustion chamber.
This gage is automatically centered at zero every
time the ignition is turned to RUN. Actual vacuum or
boost is displayed from this zero point. Changes in
ambient pressure, such as driving in mountains and
changing weather, will slightly change the zero
reading.
United StatesCanada
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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.
184

UNLOCK HORN
If your vehicle has Remote Keyless Entry (RKE),
this feature, which allows the vehicle’s horn to
chirp on the rst press of the unlock button on
the RKE transmitter, can be enabled or disabled.
When UNLOCK HORN appears on the display,
press and hold the reset button for at least
one second to scroll through the available settings:
OFF (default):The horn will not chirp when the
unlock button on the RKE transmitter is pressed.
ON:The horn will chirp on the rst press of
the unlock button on the RKE transmitter.
SeeRemote Keyless Entry (RKE) System
Operation on page 92for more information.
Choose one of the available settings and press
the information button to select it and move on to
the next feature.
LIGHT FLASH
If your vehicle has Remote Keyless Entry (RKE),
this feature, which allows the vehicle’s exterior
hazard/turn signal lighting to ash every time
the lock, unlock, or trunk release buttons on the
RKE transmitter are pressed, can be enabled
or disabled. When LIGHT FLASH appears on the
display, press and hold the reset button for at
least one second to scroll through the available
settings:
OFF:The exterior hazard/turn signal lighting will
not ash when the lock, unlock, or trunk release
buttons on the RKE transmitter are pressed.
ON (default):The exterior hazard/turn signal
lighting will ash when the lock, unlock, or trunk
release buttons on the RKE transmitter are
pressed.
SeeRemote Keyless Entry (RKE) System
Operation on page 92for more information.
Choose one of the available settings and press
the information button to select it and move on to
the next feature.
189

UNLK (Unlock) (Automatic Transaxle Only)
This screen displays only if your vehicle has
an automatic transaxle and DRIVER or ALL is
selected for the AUTO UNLK feature. This feature
determines when the automatic door unlocking
will occur. When UNLK appears on the display,
press and hold the reset button for at least
one second to scroll through the available settings:
KEY OFF:The door(s) will unlock when the key
is turned off.
SHIFT TO P (Park) (default):The door(s) will
unlock when the vehicle is shifted into PARK (P).
SeeProgrammable Automatic Door Unlock on
page 100for more information.
Choose one of the available settings and press
the information button to select it and move on to
the next feature.
EXT (Exterior) LIGHTS
If your vehicle has Remote Keyless Entry (RKE),
this feature, which allows the vehicle’s exterior
perimeter lighting to turn on each time the unlock
button on the RKE transmitter is pressed, can be
enabled or disabled. When EXT LIGHTS appears
on the display, press and hold the reset button for
at least one second to scroll through the available
settings:
OFF:The exterior perimeter lighting will
not turn on when the unlock button on the
RKE transmitter is pressed.
ON (default):The exterior perimeter lighting
will turn on when the unlock button on the RKE
transmitter is pressed.
SeeRemote Keyless Entry (RKE) System
Operation on page 92for more information.
Choose one of the available settings and press
the information button to select it and move on to
the next feature.
191

Finding a Station
BAND:Press this button to switch between AM,
FM, or XM™ (if equipped). The selection displays.
f(Tune):Turn thefknob to select radio
stations.
©SEEK¨:Press the left©or right¨SEEK
arrow to go to the previous or to the next
station and stay there.
To scan stations, press and hold either the
left
©or right¨SEEK arrow for a few seconds
until a beep sounds. The radio goes to a
station, plays for a few seconds, then goes on
to the next station. Press either the left
©or
right
¨SEEK arrow again to stop scanning.
The radio only seeks and scans stations with a
strong signal that are in the selected band.
4(Information) (XM™ Satellite Radio Service,
MP3, and RDS Features):Press the
4button to
display additional text information related to the
current FM-RDS or XM™ station, or MP3 song.
A choice of additional information such as:
Channel, Song, Artist, and CAT (category)
can display. Continue pressing the
4button to
highlight the desired label, or press the pushbutton
positioned under any one of the labels and the
information about that label displays.
While information is not available, No Info displays.
204

Setting the Tone
(Bass/Midrange/Treble)
BASS/MID/TREB (Bass, Midrange, or Treble):
To adjust bass, midrange, or treble, press
the
fknob until the tone control labels display.
Continue pressing to highlight the desired label,
or press the pushbutton positioned under the
desired label. Turn the
fknob clockwise or
counterclockwise to adjust the highlighted setting.
The highlighted setting can be adjusted by pressing
either the left
©or right¨SEEK arrow,\FWD
(forward), or
sREV (reverse) button until the
desired levels are obtained. If a station’s frequency
is weak, or has static, decrease the treble.
To quickly adjust bass, midrange, or treble to the
middle position, press the pushbutton positioned
under the BASS, MID, or TREB label for more than
two seconds. A beep sounds and the level adjusts
to the middle position.
To quickly adjust all tone and speaker controls to
the middle position, press the
fknob for more than
two seconds until a beep sounds.
EQ (Equalization):Press this button to select
preset equalization settings.To return to the manual mode, press the EQ
button until Manual displays or start to manually
adjust the bass, midrange, or treble by pressing
the
fknob.
Adjusting the Speakers (Balance/Fade)
BAL/FADE (Balance/Fade):To adjust balance or
fade, press the
fknob until the speaker control
labels display. Continue pressing to highlight the
desired label, or press the pushbutton positioned
under the desired label. Turn the
fknob clockwise
or counterclockwise to adjust the highlighted
setting. The highlighted setting can be adjusted by
pressing either the left
©or right¨SEEK arrow,
\FWD (forward), orsREV (reverse) button
until the desired levels are obtained.
To quickly adjust balance or fade to the middle
position, press the pushbutton positioned under
the BAL or FADE label for more than two seconds.
A beep sounds and the level adjusts to the middle
position.
To quickly adjust all speaker and tone controls to
the middle position, press the
fknob for more than
two seconds until a beep sounds.
206

Care of Your CDs
Handle CDs carefully. Store them in their original
cases or other protective cases and away from
direct sunlight and dust. The CD player scans the
bottom surface of the disc. If the surface of a CD is
damaged, such as cracked, broken, or scratched,
the CD does not play properly or not at all. If the
surface of a CD is soiled, take a soft, lint free cloth
or dampen a clean, soft cloth in a mild, neutral
detergent solution mixed with water, and clean it.
Make sure the wiping process starts from the center
to the edge.
Do not touch the bottom side of a CD while
handling it; this could damage the surface. Pick up
CDs by grasping the outer edges or the edge of
the hole and the outer edge.
Care of the CD Player
Do not use CD lens cleaners for CD players
because the lens of the CD optics can become
contaminated by lubricants.
Fixed Mast Antenna
The xed mast antenna can withstand most car
washes without being damaged. If the mast should
ever become slightly bent, straighten it out by
hand. If the mast is badly bent, replace it.
Check occasionally to make sure the mast
is still tightened to the fender. If tightening is
required, tighten by hand, then with a wrench
one quarter turn.
XM™ Satellite Radio Antenna
System
Your vehicle may have the XM™ Satellite Radio
antenna that is located on the trunk of your
vehicle. Keep this antenna clear of snow and ice
build up for clear radio reception.
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