
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

Instrument Panel Overview...............................3-2
Hazard Warning Flashers................................3-3
Other Warning Devices...................................3-4
Horn.............................................................3-4
Tilt Wheel.....................................................3-5
Turn Signal/Multifunction Lever.........................3-5
Exterior Lamps.............................................3-12
Interior Lamps..............................................3-14
Accessory Power Outlets...............................3-16
Ashtrays and Cigarette Lighter........................3-16
Climate Controls............................................3-17
Climate Control System.................................3-17
Outlet Adjustment.........................................3-20
Warning Lights, Gages and Indicators.............3-21
Instrument Panel Cluster................................3-22
Speedometer and Odometer...........................3-23
Tachometer.................................................3-23
Safety Belt Reminder Light.............................3-24
Air Bag Readiness Light................................3-24
Charging System Light..................................3-25
Up-Shift Light...............................................3-26
Brake System Warning Light..........................3-26
Anti-Lock Brake System Warning Light.............3-27
Enhanced Traction System Warning Light.........3-28
Enhanced Traction System Active Light............3-29
Engine Coolant Temperature Gage..................3-29
Low Coolant Warning Light............................3-30Malfunction Indicator Lamp.............................3-30
Oil Pressure Light.........................................3-33
Passlock
žWarning Light................................3-34
Check Gages Warning Light...........................3-34
Service Vehicle Soon Light............................3-35
Fuel Gage...................................................3-35
Audio System(s).............................................3-36
Setting the Time for Radios without Radio
Data Systems (RDS)..................................3-36
Setting the Time for Radios with Radio Data
Systems (RDS).........................................3-36
AM-FM Radio...............................................3-37
Radio with CD (Base Level)...........................3-39
Radio with CD (MP3)....................................3-49
Radio with Cassette and CD..........................3-63
Personal Choice Radio Controls......................3-75
Theft-Deterrent Feature (Non RDS Radios).......3-76
Theft-Deterrent Feature (RDS Radios).............3-76
Understanding Radio Reception......................3-76
Care of Your Cassette Tape Player.................3-77
Care of Your CDs.........................................3-78
Care of Your CD Player................................3-78
Fixed Mast Antenna......................................3-78
XMŸ Satellite Radio Antenna System
(United States Only)..................................3-79
Chime Level Adjustment................................3-79
Section 3 Instrument Panel
3-1

Daytime Running Lamps
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the
day. DRL can be helpful in many different driving
conditions, but they can be especially helpful in the short
periods after dawn and before sunset. Fully functional
daytime running lamps are required on all vehicles
®rst sold in Canada.
The DRL system will make your low-beam headlamps
come on at a reduced brightness in daylight when
the following conditions are met:
·The ignition is on,
·the exterior lamp band is in OFF or in the parking
lamp position,
·the parking brake is released, and
·the transaxle is not in PARK (P) on models with an
automatic transaxle only.This indicator light on your
instrument panel cluster
will come on when the DRL
are on.
A ¯ashing DRL telltale indicates a possible burned out
headlamp, or that the vehicle may need service to repair
a stuck DRL relay.
When the DRL are on, your low-beam headlamps will
be on at a reduced brightness. The taillamps,
sidemarker and other lamps won't be on. Your
instrument panel won't be lit up either.
When you turn the exterior lamp band to the headlamp
position, your low-beam headlamps will come on.
The other lamps that come on with your headlamps will
also come on.
When you turn off the headlamps, the regular lamps will
go off, and low-beam headlamps will come on to the
reduced brightness.
To idle your vehicle with the DRL off, set the parking
brake. The DRL will stay off until you release the
parking brake.
As with any vehicle, you should turn on the regular
headlamp system when you need it.
3-13

Low Coolant Warning Light
This light comes on brie¯y
when you turn your
ignition on.
If this light comes on and stays on, the coolant level in
your vehicle is low. If the light is on along with an
overheat warning, you may have a serious overheating
problem. See
Engine Coolant Temperature Gage on
page 3-29.
Notice:Damage to your engine from neglected
coolant problems can be costly and is not covered
by your warranty.
See
Engine Coolant on page 5-22for information on
what to do. Your vehicle should be serviced as soon as
possible.
Malfunction Indicator Lamp
Check Engine Light
Your vehicle is equipped with 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.
United StatesCanada
3-30

Service Vehicle Soon Light
This light will come on
brie¯y when you turn on
the ignition.
It will stay on or come on if it detects a problem on the
vehicle. If this happens, see your dealer's service
department as soon as possible.
Fuel Gage
Your fuel gage tells you about how much fuel you have
left. When the indicator nears empty, the CHECK
GAGES light will come on. You still have about
1.5 gallons (5.7 L) of fuel left, but you should get more
soon. See
Check Gages Warning Light on page 3-34earlier in this section for more information.
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, see
Capacities and
Speci®cations on page 5-85.
United StatesCanada
3-35

After you clean the player, press and hold the EJT
button for ®ve seconds to reset the CLEAN indicator.
The radio will display CLEANED to show the indicator
was reset.
Cassettes are subject to wear and the sound quality
may degrade over time. Always make sure the cassette
tape is in good condition before you have your tape
player serviced.
Care of Your CDs
Handle discs carefully. Store them in their original cases
or other protective cases and away from direct sunlight
and dust. If the surface of a disc is soiled, dampen
a clean, soft cloth in a mild, neutral detergent solution
and clean it, wiping from the center to the edge.
Be sure never to touch the side without writing when
handling discs. Pick up discs by grasping the outer
edges or the edge of the hole and the outer edge.
Care of Your CD Player
The use of CD lens cleaner discs is not advised, due to
the risk of contaminating the lens of the CD optics
with lubricants internal to the CD mechanism.
Fixed Mast Antenna
The ®xed mast antenna can withstand most car washes
without being damaged. If the mast should ever
become slightly bent, you can straighten it out by hand.
If the mast is badly bent, as it might be by vandals,
you should replace it.
Check occasionally to be sure the mast is still tightened
to the fender. If tightening is required, tighten by
hand, then with a wrench one quarter turn.
3-78

Notice:Your vehicle was not designed for fuel that
contains methanol. Don't use fuel containing
methanol. It can corrode metal parts in your fuel
system and also damage the plastic and rubber
parts. That damage wouldn't be covered under your
warranty.
Some gasolines that are not reformulated for low
emissions may contain an octane-enhancing additive
called methylcyclopentadienyl manganese tricarbonyl
(MMT); ask the attendant where you buy gasoline
whether the fuel contains MMT. General Motors does
not recommend the use of such gasolines. Fuels
containing MMT can reduce the life of spark plugs and
the performance of the emission control system may
be affected. The malfunction indicator lamp may turn on.
If this occurs, return to your authorized GM dealer for
service.Fuels in Foreign Countries
If you plan on driving in another country outside the
United States or Canada, the proper fuel may be hard
to ®nd. Never use leaded gasoline or any other fuel
not recommended in the previous text on fuel. Costly
repairs caused by use of improper fuel wouldn't be
covered by your warranty.
To check the fuel availability, ask an auto club, or
contact a major oil company that does business in the
country where you'll be driving.
5-6

Brake Wear
Your vehicle has front disc brakes and rear drum
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 won't 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.
See
Caliper/Knuckle MaintenanceInspection on
page 6-24.
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 speci®cations.
Your rear drum brakes don't 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.
See
Brake System Inspection on page 6-24.
5-37