2003 CHEVROLET CAVALIER service

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-8
Safety Belts
.............................................. 1-9
Child Restraints
.......................................1-29
Air Bag Systems
......................................1-49
Restraint System Check
............................1-58
Features and Controls..................................... 2-1
Keys
........................................................ 2-2
Doors and Locks
....................................... 2-7
Windows
.................................................2-13
Theft-Deterrent Systems
............................2-15
Starting and Operating Your Vehicle
...........2-17
Mirrors
....................................................2-32
OnStar
žSystem
......................................2-34
Storage Areas
.........................................2-35
Sunroof
..................................................2-36
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-2
Climate Controls
......................................3-17
Warning Lights, Gages and Indicators
.........3-21
Audio System(s)
.......................................3-36Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-30
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-4
Checking Things Under
the Hood
.............................................5-10
Bulb Replacement
....................................5-45
Windshield Wiper Blade Replacement
.........5-50
Tires
......................................................5-51
Appearance Care
.....................................5-71
Vehicle Identi®cation
.................................5-79
Electrical System
......................................5-80
Capacities and Speci®cations
.....................5-85
Normal Maintenance Replacement Parts
......5-86
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance Information.................... 7-1
Customer Assistance Information
.................. 7-2
Reporting Safety Defects
............................ 7-9
INDEX................................................................1
2003 Chevrolet Cavalier Owner ManualM

{CAUTION:
When an air bag in¯ates, there is dust in the
air. This dust could cause breathing problems
for people with a history of asthma or other
breathing trouble. To avoid this, everyone in
the vehicle should get out as soon as it is safe
to do so. If you have breathing problems but
can't get out of the vehicle after an air bag
in¯ates, then get fresh air by opening a
window or a door. If you experience breathing
problems following an air bag deployment, you
should seek medical attention.
In many crashes severe enough to in¯ate an air bag,
windshields are broken by vehicle deformation.
Additional windshield breakage may also occur from the
right front passenger air bag.
·Air bags are designed to in¯ate only once. After an
air bag in¯ates, you'll need some new parts for
your air bag system. If you don't get them, the air
bag system won't be there to help protect you
in another crash. A new system will include air bagmodules and possibly other parts. The service
manual for your vehicle covers the need to replace
other parts.
·Your vehicle is equipped with a crash sensing and
diagnostic module, which records information
about the air bag system. The module records
information about the readiness of the system, when
the system commands air bag in¯ation and
driver's safety belt usage at deployment.
·Let only quali®ed technicians work on your air bag
system. Improper service can mean that your air
bag system won't work properly. See your dealer for
service.
Notice:If you damage the covering for the driver's
or the right front passenger's air bag, or the air
bag covering on the driver's and right front
passenger's seatback, the bag may not work
properly. You may have to replace the air bag
module in the steering wheel, both the air bag
module and the instrument panel for the right front
passenger's air bag, or both the air bag module
and seatback for the driver's and right front
passenger's side impact air bag. Do not open or
break the air bag coverings.
1-57

Servicing Your Air Bag-Equipped
Vehicle
Air bags affect how your vehicle should be serviced.
There are air bag system parts in several places around
your vehicle. You don't want the system to in¯ate
while someone is working on your vehicle. Your dealer
and the service manual have information about
servicing your vehicle and the air bag system. To
purchase a service manual, see
Service Publications
Ordering Information on page 7-10.
{CAUTION:
For up to 10 minutes after the ignition key is
turned off and the battery is disconnected, an
air bag can still in¯ate during improper
service. You can be injured if you are close to
an air bag when it in¯ates. Avoid yellow
connectors. They are probably part of the air
bag system. Be sure to follow proper service
procedures, and make sure the person
performing work for you is quali®ed to do so.
Air bag systems do not need regular maintenance.
Restraint System Check
Checking Your Restraint Systems
Now and then, make sure the safety belt reminder light
and all your belts, buckles, latch plates, retractors
and anchorages are working properly. Look for any other
loose or damaged safety belt system parts. If you see
anything that might keep a safety belt system from doing
its job, have it repaired.
Torn or frayed safety belts may not protect you in a
crash. They can rip apart under impact forces. If a belt
is torn or frayed, get a new one right away.
Also look for any opened or broken air bag covers, and
have them repaired or replaced. (The air bag system
does not need regular maintenance.)
1-58

One key is used for the
ignition, the doors and all
other locks.
When a new vehicle is delivered, the dealer removes
the key tag from the key and gives it to the ®rst owner.
Each tag has a code on it that tells your dealer or a
quali®ed locksmith how to make extra keys. Keep the
tag in a safe place. If you lose your key, you'll be able to
have a new one made easily using the tag.
If you need a new key, contact your dealer who can
obtain the correct key code. See
Roadside Assistance
Program on page 7-6for more information.
Notice:Your vehicle has a number of features that
can help prevent theft. You can have a lot of trouble
getting into your vehicle if you ever lock your keys
inside. You may even have to damage your vehicle to
get in. So be sure you have spare keys.If your vehicle is equipped with the OnStar
žsystem with
an active subscription and you lock your keys inside
the vehicle, OnStar
žmay be able to send a command to
unlock your vehicle. SeeOnStaržSystem on page 2-34for more information.
Remote Keyless Entry System
If equipped, the remote keyless entry system operates
on a radio frequency subject to Federal Communications
Commission (FCC) Rules and with Industry Canada.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
1. This device may not cause interference, and
2. This device must accept any interference received,
including interference that may cause undesired
operation of the device.
This device complies with RSS-210 of Industry Canada.
Operation is subject to the following two conditions:
1. This device may not cause interference, and
2. This device must accept any interference received,
including interference that may cause undesired
operation of the device.
Changes or modi®cations to this system by other than
an authorized service facility could void authorization to
use this equipment.
2-3

At times you may notice a decrease in range. This is
normal for any remote keyless entry system. If the
transmitter does not work or if you have to stand closer
to your vehicle for the transmitter to work, try this:
·Check the distance. You may be too far from your
vehicle. You may need to stand closer during
rainy or snowy weather.
·Check the location. Other vehicles or objects may
be blocking the signal. Take a few steps to the
left or right, hold the transmitter higher, and
try again.
·Check to determine if battery replacement or
resynchronization is necessary. See ªBattery
Replacementº and ªResynchronizationº under
ªRemote Keyless Entry System Operationº following
this section.
·If you are still having trouble, see your dealer or a
quali®ed technician for service.
Remote Keyless Entry System
Operation
If your vehicle has this feature, you can lock and unlock
your doors or unlock your trunk from about 3 feet
(1 m) up to 30 feet (9 m) away using the remote keyless
entry transmitter supplied with your vehicle.
In addition, the system illuminates the interior lamps for
a set period of time. Also, a content theft security
system can be activated to monitor and set a horn alarm
if the vehicle's door or trunk is opened without ®rst
unlocking the door or trunk with the remote keyless entry
transmitter.
The remote keyless entry system consists of a receiver,
which is located in the vehicle, and two hand held
transmitters.
2-4

Resynchronization
Your remote keyless entry system is equipped with a
security system that prevents anyone from recording and
playing back your signal. The transmitter does not
send the same signal twice to the receiver. The receiver
will not respond to a signal that has been sent to it
more than once.
Normally, the transmitter and receiver resynchronize
automatically. However, under certain circumstances,
manual resynchronization may be required.
To resynchronize your transmitter and receiver, follow
these directions:
1. Stand close to your vehicle.
2. Press and hold the LOCK and UNLOCK buttons on
the transmitter at the same time.
3. Hold the buttons for at least 10 seconds. During this
time, the doors should lock and unlock once. This
con®rms the resynchronization. If the doors do
not lock and unlock, see your dealer for service.
Doors and Locks
Door Locks
{CAUTION:
Unlocked doors can be dangerous.
·Passengers Ð especially children Ð can
easily open the doors and fall out of a
moving vehicle. When a door is locked, the
handle won't open it. You increase the
chance of being thrown out of the vehicle
in a crash if the doors aren't locked. So,
wear safety belts properly and lock the
doors whenever you drive.
·Young children who get into unlocked
vehicles may be unable to get out. A child
can be overcome by extreme heat and can
suffer permanent injuries or even death
from heat stroke. Always lock your vehicle
whenever you leave it.
·Outsiders can easily enter through an
unlocked door when you slow down or
stop your vehicle. Locking your doors can
help prevent this from happening.
2-7

How to Turn Off the System Alarm
If the system alarm is active, it can be deactivated by:
·Pressing the transmitter LOCK or panic button to
turn off the alarm. The system will also re-arm if
all doors and trunk are later closed, or
·pressing the transmitter UNLOCK or trunk button to
turn off the alarm and disarm the system, or
·putting the key in the ignition and turning it to
START to turn off the alarm and disarm the system.
How to Detect a Tamper Condition
If you hear three horn chirps when you press the
UNLOCK, LOCK or trunk buttons on your transmitter,
that means the content theft security system alarm was
triggered while you were away.
Your dealer can change the settings to disable the
headlamp ¯ash and horn chirp features. Your dealer can
also change the settings to allow the horn to chirp
twice on the ®rst press of the UNLOCK button. See your
dealer for more information.
Passlockž
Your vehicle is equipped with the
Passlockžtheft-deterrent system.
Passlock
žis a passive theft-deterrent system.
Passlockženables fuel if the ignition lock cylinder is
turned with a valid key. If a correct key is not used or the
ignition lock cylinder is tampered with, fuel is disabled.
During normal operation, the THEFT SYSTEM light
will go off approximately ®ve seconds after the key is
turned to the RUN ignition position following an
engine start.
If the engine stalls and the THEFT SYSTEM light
¯ashes, wait until the light stops ¯ashing before trying to
restart the engine. Remember to release the key from
START as soon as the engine starts.
If the engine is running and the THEFT SYSTEM light
comes on, you will be able to restart the engine if
you turn the engine off. However, your
Passlock
žsystem is not working properly and must be
serviced by your dealer. Your vehicle is not protected
by Passlock
žat this time. You may also want to check
the fuses, seeFuses and Circuit Breakers on
page 5-81. See your dealer for service. Also, seeRoadside Assistance Program on page 7-6for more
information.
2-16

B (LOCK):This position locks your steering wheel,
ignition, shift lever and transaxle. This is the only
position from which you can remove the key. A warning
chime will sound if you open the driver's door when
the ignition is in LOCK and the key is in the ignition.
{CAUTION:
On manual transaxle vehicles, turning the key
to LOCK will lock the steering column and
result in a loss of ability to steer the vehicle.
This could cause a collision. If you need to
turn the engine off while the vehicle is moving,
turn the key only to OFF. Don't press the key
release button while the vehicle is moving.
Notice:If your key seems stuck in LOCK and you
can't turn it, be sure you are using the correct key; if
so, is it all the way in? If it is, then turn the steering
wheel left and right while you turn the key hard.
Turn the key only with your hand. Using a tool
to force it could break the key or the ignition switch.
If none of these works, then your vehicle needs
service.C (OFF):This position unlocks the steering wheel,
ignition and transaxle, but does not send power to any
accessories. Use this position if your vehicle must
be pushed or towed, but never try to push-start your
vehicle. A warning chime will sound if you open
the driver's door when the ignition is in OFF and the key
is in the ignition.
D (RUN):This is the position to which the switch
returns after you start your engine and release the
switch. The switch stays in RUN when the engine
is running. But even when the engine is not running,
you can use RUN to operate your electrical accessories,
and to display some instrument panel warning lights.
E (START):This position starts the engine. When
the engine starts, release the key. The ignition switch
will return to RUN for normal driving.
Even if the engine is not running, ACCESSORY and
RUN allow you to operate electrical accessories,
such as the radio.
2-18