warning CHEVROLET COBALT 2005 1.G Owner's Guide

If No Steam Is Coming From Your
Engine
An engine coolant temperature warning can indicate a
serious problem. SeeEngine Coolant Temperature
Warning Light on page 3-29.
If you get an engine coolant temperature warning, but
see or hear no steam, the problem may not be too
serious. Sometimes the engine can get a little too hot
when you:
Climb a long hill on a hot day.
Stop after high-speed driving.
Idle for long periods in traffic.
Tow a trailer.If you get the engine coolant temperature warning with
no sign of steam, try this for a minute or so:
1. If you have an air conditioner and it is on, turn it off.
2. In heavy traffic, let the engine idle in NEUTRAL (N)
while stopped. If it is safe to do so, pull off the road,
shift to PARK (P) or NEUTRAL (N) and let the
engine idle.
3. Turn on your heater to full hot at the highest fan
speed and open the windows as necessary.
If you no longer have the overheat warning, you can
drive. Just to be safe, drive slower for about 10 minutes.
If the warning does not come back on, you can drive
normally.
If the warning continues and you have not stopped, pull
over, stop, and park your vehicle right away.
If there is still no sign of steam, you can idle the engine
for three minutes while you are parked. If you still
have the warning, turn off the engine and get everyone
out of the vehicle until it cools down.
You may decide not to lift the hood but to get service
help right away.
5-30

How to Add Coolant to the Coolant
Surge Tank
Notice:This vehicle has a specic coolant ll
procedure. Failure to follow this procedure could
cause your engine to overheat and be severely
damaged.
If you have not found a problem yet, check to see if
coolant is visible in the coolant surge tank. If coolant is
visible but the coolant level is not at the COLD FILL
line, add a 50/50 mixture of clean, drinkable water and
DEX-COOL
®coolant at the coolant surge tank, but
be sure the cooling system, including the coolant surge
tank pressure cap, is cool before you do it. See
Engine Coolant on page 5-23for more information.
2.2L L4 Engine
If no coolant is visible in the coolant surge tank, add
coolant as follows:
{CAUTION:
Steam and scalding liquids from a hot cooling
system can blow out and burn you badly. They
are under pressure, and if you turn the coolant
CAUTION: (Continued)
CAUTION: (Continued)
surge tank pressure cap — even a little — they
can come out at high speed. Never turn the
cap when the cooling system, including the
coolant surge tank pressure cap, is hot. Wait
for the cooling system and coolant surge tank
pressure cap to cool if you ever have to turn
the pressure cap.
{CAUTION:
Adding only plain water to your cooling
system can be dangerous. Plain water, or
some other liquid such as alcohol, can boil
before the proper coolant mixture will. Your
vehicle’s coolant warning system is set for the
proper coolant mixture. With plain water or the
wrong mixture, your engine could get too hot
but you would not get the overheat warning.
Your engine could catch re and you or others
could be burned. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
®coolant.
5-33

So, it is not a good idea to top off your brake/clutch
uid. Adding uid will not correct a leak. If you add uid
when your brake linings are worn, then you will have
too much uid when you get new brake linings.
You should add or remove uid, as necessary, only
when work is done on the brake/clutch hydraulic system.
{CAUTION:
If you have too much brake uid, it can spill on
the engine. The uid will burn if the engine is
hot enough. You or others could be burned,
and your vehicle could be damaged. Add brake
uid only when work is done on the brake
and/or clutch hydraulic system.
When your brake uid falls to a low level, your brake
warning light will come on. SeeBrake System Warning
Light on page 3-27.
What to Add
When you do need brake uid, use only DOT-3 brake
uid. Use new brake uid from a sealed container
only. SeeRecommended Fluids and Lubricants on
page 6-12.Always clean the brake uid reservoir cap and the area
around the cap before removing it. This will help
keep dirt from entering the reservoir.
{CAUTION:
With the wrong kind of uid in your
brake/clutch system, your brakes/clutch may
not work well, or they may not even work at
all. This could cause a crash. Always use the
proper brake uid.
Notice:
Using the wrong uid can badly damage
brake/clutch system parts. For example, just a
few drops of mineral-based oil, such as
engine oil, in your brake/clutch hydraulic system
can damage brake/clutch system parts so
badly that they will have to be replaced. Do not
let someone put in the wrong kind of uid.
If you spill brake uid on your vehicle’s painted
surfaces, the paint nish can be damaged. Be
careful not to spill brake uid on your vehicle. If
you do, wash it off immediately. SeeAppearance
Care on page 5-81.
5-37

Brake Wear
Your vehicle has front disc brakes and may have rear
drum brakes or rear disc brakes.
Disc brake pads have built-in wear indicators that make
a high-pitched warning sound when the brake pads
are worn and new pads are needed. The sound
may come and go or be heard all the time your vehicle
is moving, except when you are pushing on the
brake pedal rmly.
{CAUTION:
The brake wear warning sound means that
soon your brakes will not work well. That
could lead to an accident. When you hear the
brake wear warning sound, have your vehicle
serviced.
Notice:Continuing to drive with worn-out brake
pads could result in costly brake repair.Some driving conditions or climates may cause a brake
squeal when the brakes are rst applied or lightly
applied. This does not mean something is wrong with
your brakes.
Properly torqued wheel nuts are necessary to help
prevent brake pulsation. When tires are rotated, inspect
brake pads for wear and evenly tighten wheel nuts in
the proper sequence to GM torque specications.
If your vehicle has rear drum brakes, they do not have
wear indicators, but if you ever hear a rear brake
rubbing noise, have the rear brake linings inspected
immediately. Also, the rear brake drums should
be removed and inspected each time the tires are
removed for rotation or changing. When you have the
front brake pads replaced, have the rear brakes
inspected, too.
Brake linings should always be replaced as complete
axle sets.
Brake Pedal Travel
See your dealer if the brake pedal does not return to
normal height, or if there is a rapid increase in
pedal travel. This could be a sign of brake trouble.
5-38

Brake Adjustment
Every time you make a moderate brake stop, your disc
brakes adjust for wear. If you rarely make a moderate
or heavier stop, then your brakes might not adjust
correctly. If you drive in that way, then — very
carefully — make a few moderate brake stops about
every 1,000 miles (1 600 km), so your brakes will adjust
properly.
If you have rear drum brakes and your brake pedal
goes down farther than normal, the rear drum brakes
may need adjustment. Adjust them by backing up
and rmly applying the brakes a few times.
Replacing Brake System Parts
The braking system on a vehicle is complex. Its many
parts have to be of top quality and work well together if
the vehicle is to have really good braking. Your
vehicle was designed and tested with top-quality GM
brake parts. When you replace parts of your braking
system — for example, when your brake linings
wear down and you need new ones put in — be sure
you get new approved GM replacement parts.If you do not, your brakes may no longer work properly.
For example, if someone puts in brake linings that
are wrong for your vehicle, the balance between your
front and rear brakes can change — for the worse. The
braking performance you have come to expect can
change in many other ways if someone puts in
the wrong replacement brake parts.
Battery
Your vehicle has a maintenance free battery. When it is
time for a new battery, get one that has the replacement
number shown on the original battery’s label. We
recommend an ACDelco
®replacement battery.
Your vehicle’s battery is located in the trunk. You do not
need to access the battery to jump start your vehicle.
SeeJump Starting on page 5-40.
Warning:Battery posts, terminals, and related
accessories contain lead and lead compounds,
chemicals known to the State of California to cause
cancer and reproductive harm. Wash hands after
handling.
5-39

Treadwear
The treadwear grade is a comparative rating based on
the wear rate of the tire when tested under controlled
conditions on a specied government test course.
For example, a tire graded 150 would wear one and
a half (1.5) times as well on the government course as
a tire graded 100. The relative performance of tires
depends upon the actual conditions of their use,
however, and may depart signicantly from the norm
due to variations in driving habits, service practices and
differences in road characteristics and climate.
Traction – AA, A, B, C
The traction grades, from highest to lowest, are AA, A,
B, and C. Those grades represent the tire’s ability
to stop on wet pavement as measured under controlled
conditions on specied government test surfaces of
asphalt and concrete. A tire marked C may have poor
traction performance. Warning: The traction grade
assigned to this tire is based on straight-ahead braking
traction tests, and does not include acceleration,
cornering, hydroplaning, or peak traction characteristics.
Temperature – A, B, C
The temperature grades are A (the highest), B, and C,
representing the tire’s resistance to the generation
of heat and its ability to dissipate heat when tested
under controlled conditions on a specied indoor
laboratory test wheel. Sustained high temperature can
cause the material of the tire to degenerate and
reduce tire life, and excessive temperature can lead to
sudden tire failure. The grade C corresponds to a
level of performance which all passenger car tires must
meet under the Federal Motor Vehicle Safety Standard
No. 109. Grades B and A represent higher levels of
performance on the laboratory test wheel than the
minimum required by law.
Warning: The temperature grade for this tire is
established for a tire that is properly inated and not
overloaded. Excessive speed, underination, or
excessive loading, either separately or in combination,
can cause heat buildup and possible tire failure.
5-66

Changing a Flat Tire
If a tire goes at, avoid further tire and wheel damage
by driving slowly to a level place. Turn on your
hazard warning ashers.
{CAUTION:
Changing a tire can be dangerous. The vehicle
can slip off the jack and roll over or fall on you
or other people. You and they could be badly
injured or even killed. Find a level place to
change your tire. To help prevent the vehicle
from moving:
1. Set the parking brake rmly.
2. Put an automatic transaxle shift lever in
PARK (P), or shift a manual transaxle to
FIRST (1) or REVERSE (R).
3. Turn off the engine and do not restart
while the vehicle is raised.
4. Do not allow passengers to remain in the
vehicle.
CAUTION: (Continued)
CAUTION: (Continued)
To be even more certain the vehicle will not
move, you should put blocks at the front and
rear of the tire farthest away from the one
being changed. That would be the tire on the
other side, at the opposite end of the vehicle.
When you have a at tire, use the following example as a
guide to assist you in the placement of wheel blocks.
The following information will tell you how to use the
jack and change a tire.
5-70

Appearance Care
Cleaning products can be hazardous. Some are toxic.
Other cleaning products can burst into ames if a match
is struck near them or if they get on a hot part of the
vehicle. Some are dangerous if their fumes are inhaled
in an enclosed space. When anything from a container
is used to clean the vehicle, be sure to follow the
manufacturer’s warnings and instructions. Always open
the doors or windows of the vehicle when cleaning
the inside.
Never use these to clean the vehicle:
Benzene
Naphtha
Carbon Tetrachloride
Acetone
Paint Thinner
Turpentine
Lacquer Thinner
Nail Polish Remover
They can all be hazardous — some more than
others —and they can all damage the vehicle, too.Do not use any of these products unless this manual
says you can. In many uses, these will damage
the vehicle:
Alcohol
Laundry Soap
Bleach
Reducing Agents
Cleaning the Inside of Your Vehicle
Your vehicle’s interior will continue to look its best if
it is cleaned often. Although not always visible, dust and
dirt can accumulate on your upholstery. Dirt can
damage carpet, fabric, leather, and plastic surfaces.
Regular vacuuming is recommended to remove particles
from your upholstery. It is important to keep your
upholstery from becoming and remaining heavily soiled.
Soils should be removed as quickly as possible. Your
vehicle’s interior may experience extremes of heat
that could cause stains to set rapidly.
Lighter colored interiors may require more frequent
cleaning. Use care because newspapers and garments
that transfer color to your home furnishings may also
transfer color to your vehicle’s interior.
5-81

A
Accessory Power Outlets.................................3-16
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment............................5-90
Air Cleaner/Filter, Engine.................................5-21
Air Conditioning..............................................3-17
Airbag
Readiness Light..........................................3-25
Airbag Sensing and Diagnostic Module (SDM)...... 7-9
Airbag System................................................1-48
How Does an Airbag Restrain?......................1-54
Servicing Your Airbag-Equipped Vehicle..........1-57
What Makes an Airbag Inate?......................1-54
What Will You See After an Airbag Inates?....1-55
When Should an Airbag Inate?....................1-53
Where Are the Airbags?...............................1-50
Antenna, Fixed Mast.......................................3-76
Antenna, XM™ Satellite Radio Antenna System . . 3-76
Anti-Lock Brake System (ABS)........................... 4-6
Anti-Lock Brake, System Warning Light..............3-28
Appearance Care............................................5-81
Aluminum or Chrome-Plated Wheels..............5-86
Care of Safety Belts....................................5-84
Chemical Paint Spotting...............................5-87Appearance Care (cont.)
Cleaning Exterior Lamps/Lenses....................5-85
Cleaning the Inside of Your Vehicle................5-81
Fabric/Carpet..............................................5-83
Finish Care.................................................5-85
Finish Damage............................................5-87
Instrument Panel, Vinyl, and Other
Plastic Surfaces.......................................5-84
Leather......................................................5-83
Sheet Metal Damage...................................5-87
Tires..........................................................5-87
Underbody Maintenance...............................5-87
Vehicle Care/Appearance Materials................5-88
Washing Your Vehicle...................................5-85
Weatherstrips..............................................5-84
Windshield and Wiper Blades........................5-86
Ashtrays........................................................3-17
Audio System(s).............................................3-45
Audio Steering Wheel Controls......................3-75
Care of Your CD Player...............................3-76
Care of Your CDs........................................3-76
Fixed Mast Antenna.....................................3-76
Radio with CD............................3-46, 3-51, 3-60
Setting the Time for Radios with
Radio Data Systems (RDS).......................3-46
1

Audio System(s) (cont.)
Setting the Time for Radios without
Radio Data Systems (RDS).......................3-45
Theft-Deterrent Feature................................3-74
Understanding Radio Reception.....................3-75
XM™ Satellite Radio Antenna System............3-76
Automatic Door Locks....................................... 2-9
Automatic Transaxle
Fluid..........................................................5-22
Operation...................................................2-22
B
Battery..........................................................5-39
Run-Down Protection...................................3-16
Before Leaving on a Long Trip.........................4-22
Boost Gage...................................................3-34
Brake
Anti-Lock Brake System (ABS)........................ 4-6
Emergencies................................................ 4-8
Parking......................................................2-26
System Warning Light..................................3-27
Brakes..........................................................5-36
Braking........................................................... 4-5
Braking in Emergencies..................................... 4-8
Break-In, New Vehicle.....................................2-16Bulb Replacement...........................................5-47
Back-Up Lamps...........................................5-52
Center High-Mounted Stoplamp (CHMSL)........5-49
Halogen Bulbs............................................5-47
Headlamp Aiming........................................5-44
Headlamps, Front Turn Signal, Sidemarker,
and Parking Lamps..................................5-48
Replacement Bulbs......................................5-53
Taillamps and Turn Signal Lamps..................5-50
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps........................................5-51
Buying New Tires...........................................5-64C
California Fuel.................................................. 5-6
Canadian Owners................................................ ii
Capacities and Specications............................5-97
Carbon Monoxide...........2-10, 2-30, 4-25, 4-37, 4-38
Care of
Safety Belts................................................5-84
Your CD Player...........................................3-76
Your CDs ...................................................3-76
Center Console Storage Area...........................2-35
Center High-Mounted Stoplamp (CHMSL)...........5-49
Chains, Tire...................................................5-68
2