2006 CHEVROLET COBALT check oil

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
GM dealer can prepare the vehicle for inspection.
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.
3-35

CHANGE OIL SOON
This message is displayed 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. See
“OIL-LIFE RESET” underDIC Vehicle Personalization
on page 3-43,Engine Oil Life System on page 5-20,
andScheduled Maintenance on page 6-4for more
information.
CHECK GAS CAP
This message is displayed if the gas cap has not been
fully tightened. You should recheck your gas cap to
ensure that it is on properly. A few driving trips with
the cap properly installed should turn the display off.
CRUISE ENGAGED
This message is displayed when the cruise control
system is active. SeeCruise Control on page 3-10
for more information.
DOOR AJAR
This message is displayed if one or more of the
vehicle’s doors are not closed properly. When this
message appears, you should make sure that the
door is closed completely.
ENGINE DISABLED
This message is displayed if the starting of the engine is
disabled. Have your vehicle serviced by your GM dealer
immediately.
ENG (Engine) PWR (Power) REDUCED
This message informs you that the vehicle has reduced
engine power to avoid damaging the engine. Reduced
engine power can affect the vehicle’s ability to accelerate.
If this message is on, but there is no reduction in
performance, proceed to your destination. The
performance may be reduced the next time the vehicle is
driven. The vehicle may be driven at a reduced speed
while this message is on, but acceleration and speed may
be reduced. Anytime this message stays on, the vehicle
should be taken to your GM dealer for service as soon as
possible.
ICE POSSIBLE
This message appears when the outside air temperature
is cold enough to create icy road conditions.
KEY FOB BATT (Battery) LOW
This message is displayed if the remote keyless entry
transmitter battery is low. See “Battery Replacement”
underRemote Keyless Entry System Operation on
page 2-4.
3-41

The CD player can play the smaller 3 inch (8 cm) single
CDs without an adapter ring. Full-size CDs and the
smaller CDs are loaded in the same manner.
If playing a CD-R, the sound quality may be reduced due
to CD-R quality, the method of recording, the quality of
the music that has been recorded, and the way the CD-R
has been handled. There may be an increase in skipping,
difficulty in nding tracks, and/or difficulty in loading and
ejecting. If these problems occur, check the bottom
surface of the CD. If the surface of the CD is damaged,
such as cracked, broken, or scratched, the CD will not
play properly. If the surface of the CD is soiled, seeCare
of Your CDs on page 3-72for more information.
If there is no apparent damage, try a known good CD.
Do not add any label to a CD, it could get caught in the
CD player. If a CD is recorded on a personal computer
and a description label is needed, try labeling the top of
the recorded CD with a marking pen instead.
Notice:If you add any label to a CD, insert more
than one CD into the slot at a time, or attempt to play
scratched or damaged CDs, you could damage the
CD player. When using the CD player, use only CDs
in good condition without any label, load one CD at a
time, and keep the CD player and the loading slot free
of foreign materials, liquids, and debris.
If an error appears on the display, see “CD Messages”
later in this section.1r(Reverse):Press and hold this pushbutton to
reverse quickly within a track. You will hear sound at a
reduced volume. Release this pushbutton to play the
passage. The elapsed time of the track will appear on
the display.
2
[(Fast Forward):Press and hold this pushbutton
to advance quickly within a track. You will hear sound
at a reduced volume. Release this pushbutton to
play the passage. The elapsed time of the track will
appear on the display.
5
y(Random):Press this pushbutton to hear the
tracks in random, rather than sequential, order.
RANDOM ON will appear on the display.
Turn the ADJ knob, while in random, to take you to the
previous or next track in sequential order.
Press RDM again to turn off random play, RANDOM
OFF will appear on the display.
6
N(Repeat):Press this pushbutton once to hear a
track over again. REPEAT ON and the repeat symbol
will appear on the display. The current track will continue
to repeat.
Turn the ADJ knob, while in repeat, to take you to the
previous or next track.
Press RPT again to turn off repeat play, REPEAT OFF
will appear on the display.
3-55

Playing a CD
Insert a CD partway into the slot, label side up. The
player will pull it in and the CD should begin playing.
If you want to insert a CD with the ignition off, rst press
the eject button or the DISP knob.
As each new track starts to play, the track number will
appear on the display.
If the ignition or radio is turned off with a CD in the
player, it will stay in the player. When the ignition
or radio is turned on the CD will start playing, where it
stopped, if it was the last selected audio source.
The CD player can play the smaller 3 inch (8 cm) single
CDs without an adapter ring. Full-size CDs and the
smaller CDs are loaded in the same manner.
If playing a CD-R, the sound quality may be reduced due
to CD-R quality, the method of recording, the quality of
the music that has been recorded, and the way the CD-R
has been handled. There may be an increase in skipping,
difficulty in nding tracks, and/or difficulty in loading and
ejecting. If these problems occur, check the bottom
surface of the CD. If the surface of the CD is damaged,
such as cracked, broken, or scratched, the CD will not
play properly. If the surface of the CD is soiled, seeCare
of Your CDs on page 3-72for more information.If there is no apparent damage, try a known good CD.
Do not add any label to a CD, it could get caught in the
CD player. If a CD is recorded on a personal computer
and a description label is needed, try labeling the top of
the recorded CD with a marking pen instead.
Notice:If you add any label to a CD, insert more
than one CD into the slot at a time, or attempt to play
scratched or damaged CDs, you could damage the
CD player. When using the CD player, use only CDs
in good condition without any label, load one CD at a
time, and keep the CD player and the loading slot free
of foreign materials, liquids, and debris.
If an error appears on the display, see “CD Messages”
later in this section.
1
r(Reverse):Press and hold this pushbutton to
reverse quickly within a track. The sound will be muted.
Release this pushbutton to play the passage. The
elapsed time of the track will appear on the display.
2
[(Fast Forward):Press and hold this pushbutton
to advance quickly within a track. The sound will be
muted. Release this pushbutton to play the passage.
The elapsed time of the track will appear on the display.
3-64

Playing an MP3
With the ignition on, insert a CD partway into the slot,
label side up. The player will pull it in, and READING
DISC will appear on the display. The CD should begin
playing and the CD symbol will appear on the display.
If you want to insert a CD with the ignition off, rst press
the eject button or the DISP knob.
If you turn off the ignition or radio with a CD in the
player it will stay in the player. When you turn on the
ignition or radio, the CD will start to play where it
stopped, if it was the last selected audio source.
As each new track starts to play, the track number will
appear on the display.
The CD player can play the smaller 3 inch (8 cm) single
CDs without an adapter ring. Full-size CDs and the
smaller CDs are loaded in the same manner.
If playing a CD-R, the sound quality may be reduced due
to CD-R quality, the method of recording, the quality of
the music that has been recorded, and the way the CD-R
has been handled. There may be an increase in skipping,
difficulty in nding tracks, and/or difficulty in loading and
ejecting. If these problems occur, check the bottom
surface of the CD. If the surface of the CD is damaged,
such as cracked, broken, or scratched, the CD will not
play properly. If the surface of the CD is soiled, seeCare
of Your CDs on page 3-72for more information.If there is no apparent damage, try a known good CD.
Do not add any label to a CD, it could get caught in the
CD player. If a CD is recorded on a personal computer
and a description label is needed, try labeling the top of
the recorded CD with a marking pen instead.
Notice:If you add any label to a CD, insert more
than one CD into the slot at a time, or attempt to play
scratched or damaged CDs, you could damage the
CD player. When using the CD player, use only CDs
in good condition without any label, load one CD at a
time, and keep the CD player and the loading slot free
of foreign materials, liquids, and debris.
If an error appears on the display, see “CD Messages”
later in this section.
1
r(Reverse):Press and hold this pushbutton to
reverse quickly within a track. Press and hold this
pushbutton for less than two seconds to reverse at
eight times the normal playing speed. Release this
pushbutton to play the track. REV and the elapsed
time of the track will appear on the display.
2
[(Fast Forward):Press and hold this pushbutton
to advance quickly within a track. Press and hold this
pushbutton for less than two seconds to advance at
eight times the normal playing speed. Release this
pushbutton to play the track. FWD and the elapsed time
of the track will appear on the display.
3-68

Here are some things you can check before a trip:
Windshield Washer Fluid:Is the reservoir full? Are
all windows clean inside and outside?
Wiper Blades:Are they in good shape?
Fuel, Engine Oil, Other Fluids:Have you checked
all levels?
Lamps:Are they all working? Are the lenses clean?
Tires:They are vitally important to a safe,
trouble-free trip. Is the tread good enough for
long-distance driving? Are the tires all inated
to the recommended pressure?
Weather Forecasts:What is the weather outlook
along your route? Should you delay your trip a
short time to avoid a major storm system?
Maps:Do you have up-to-date maps?
Highway Hypnosis
Is there actually such a condition as highway hypnosis?
Or is it just plain falling asleep at the wheel? Call it
highway hypnosis, lack of awareness, or whatever.
There is something about an easy stretch of road with the
same scenery, along with the hum of the tires on the
road, the drone of the engine, and the rush of the wind
against the vehicle that can make you sleepy. Do not let it
happen to you! If it does, your vehicle can leave the road
in less than a second, and you could crash and be
injured.
What can you do about highway hypnosis? First, be
aware that it can happen.
Then here are some tips:
Make sure your vehicle is well ventilated, with a
comfortably cool interior.
Keep your eyes moving. Scan the road ahead and
to the sides. Check your rearview mirrors and your
instruments frequently.
If you get sleepy, pull off the road into a rest,
service, or parking area and take a nap, get some
exercise, or both. For safety, treat drowsiness
on the highway as an emergency.
4-23

Maintenance When Trailer Towing
Your vehicle will need service more often when you are
pulling a trailer. SeeScheduled Maintenance on page 6-4
for more on this. Things that are especially important in
trailer operation are transaxle uid (do not overll), engine
oil, drive belt, cooling system and brake system.
Each of these is covered in this manual, and the Index
will help you nd them quickly. If you are trailering,
it is a good idea to review this information before you
start your trip.
Check periodically to see that all hitch nuts and bolts
are tight.
Engine Cooling When Trailer Towing
Your cooling system may temporarily overheat during
severe operating conditions. SeeEngine Overheating on
page 5-29.
Towing a Trailer (Manual Transaxle)
Do not tow a trailer if your vehicle is equipped with a
manual transaxle. If you have the Cobalt SS, you
can tow a trailer. See “Towing a Trailer” in the Index
for more information.
4-46

Service............................................................5-3
Accessories and Modications..........................5-3
California Proposition 65 Warning.....................5-3
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside of
Your Vehicle..............................................5-5
Fuel................................................................5-5
Gasoline Octane............................................5-5
Gasoline Specications....................................5-6
California Fuel...............................................5-6
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-7
Filling the Tank..............................................5-8
Filling a Portable Fuel Container.....................5-10
Checking Things Under the Hood....................5-10
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-15
Engine Oil Life System..................................5-20
Engine Air Cleaner/Filter................................5-21
Automatic Transaxle Fluid..............................5-23
Manual Transaxle Fluid..................................5-23
Hydraulic Clutch...........................................5-23
Engine Coolant.............................................5-24
Coolant Surge Tank Pressure Cap..................5-29
Engine Overheating.......................................5-29Cooling System............................................5-31
Windshield Washer Fluid................................5-37
Brakes........................................................5-38
Battery........................................................5-41
Jump Starting...............................................5-42
Headlamp Aiming...........................................5-46
Bulb Replacement..........................................5-49
Halogen Bulbs..............................................5-49
Headlamps, Front Turn Signal, Sidemarker,
and Parking Lamps....................................5-50
Center High-Mounted Stoplamp (CHMSL).........5-51
Taillamps and Turn Signal Lamps (Coupe).......5-52
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps (Sedan).............................5-53
Back-Up Lamps (Coupe)................................5-54
Replacement Bulbs.......................................5-55
Windshield Wiper Blade Replacement..............5-55
Tires..............................................................5-56
Tire Sidewall Labeling...................................5-58
Tire Terminology and Denitions.....................5-60
Ination - Tire Pressure.................................5-63
Tire Inspection and Rotation...........................5-65
When It Is Time for New Tires.......................5-66
Buying New Tires.........................................5-66
Different Size Tires and Wheels......................5-68
Section 5 Service and Appearance Care
5-1