2003 CHEVROLET CAVALIER ECU

{CAUTION:
Both frontal and side impact air bags in¯ate
with great force, faster than the blink of an eye.
If you're too close to an in¯ating air bag, as you
would be if you were leaning forward, it could
seriously injure you. Safety belts help keep you
in position for air bag in¯ation before and
during a crash. Always wear your safety belt,
even with frontal air bags. The driver should sit
as far back as possible while still maintaining
control of the vehicle. Front occupants should
not lean on or sleep against the door.
{CAUTION:
Anyone who is up against, or very close to,
any air bag when it in¯ates can be seriously
injured or killed. Air bags plus lap-shoulder
belts offer the best protection for adults, but
not for young children and infants. Neither the
vehicle's safety belt system nor its air bag
system is designed for them. Young children
and infants need the protection that a child
restraint system can provide. Always secure
children properly in your vehicle. To read how,
see the part of this manual called ªOlder
Childrenº or ªInfants and Young Children.º
1-51

Keys...............................................................2-2
Remote Keyless Entry System.........................2-3
Remote Keyless Entry System Operation...........2-4
Doors and Locks.............................................2-7
Door Locks....................................................2-7
Power Door Locks..........................................2-8
Rear Door Security Locks................................2-9
Lockout Protection........................................2-10
Leaving Your Vehicle....................................2-10
Trunk..........................................................2-10
Windows........................................................2-13
Manual Windows..........................................2-14
Power Windows............................................2-14
Sun Visors...................................................2-14
Theft-Deterrent Systems..................................2-15
Content Theft-Deterrent.................................2-15
Passlock
ž....................................................2-16
Starting and Operating Your Vehicle................2-17
New Vehicle Break-In....................................2-17
Ignition Positions..........................................2-17
Starting Your Engine.....................................2-19
Engine Coolant Heater..................................2-21
Automatic Transaxle Operation.......................2-22Manual Transaxle Operation...........................2-25
Parking Brake..............................................2-26
Shifting Into Park (P)
(Automatic Transaxle)................................2-27
Shifting Out of Park (P)
(Automatic Transaxle)................................2-29
Parking Your Vehicle
(Manual Transaxle)....................................2-29
Parking Over Things That Burn.......................2-30
Engine Exhaust............................................2-30
Running Your Engine While You Are Parked. . . .2-31
Mirrors...........................................................2-32
Manual Rearview Mirror.................................2-32
Outside Remote Control Mirror.......................2-32
Outside Power Mirrors...................................2-32
Outside Convex Mirror...................................2-33
Outside Breakaway Mirror..............................2-33
OnStaržSystem.............................................2-34
Storage Areas................................................2-35
Cupholder(s)................................................2-35
Center Console Storage Area.........................2-35
Convenience Net..........................................2-36
Sunroof.........................................................2-36
Section 2 Features and Controls
2-1

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

The following functions are
available with the remote
keyless entry system:
LOCK:All doors will automatically lock when this
button is pressed. In addition, if all doors and the trunk
are closed, the headlamps will ¯ash once, the interior
lamps will turn off, and the vehicle content theft security
system will arm. See
Content Theft-Deterrent on
page 2-15.
UNLOCK:The driver's door will unlock when this button
is pressed. In addition, the headlamps will ¯ash twice, the
interior lamps will turn on for about 20 seconds or until the
ignition is turned on, and the content theft security system
will disarm. See
Content Theft-Deterrent on page 2-15.If
you press UNLOCK again within ®ve seconds, all
remaining doors will unlock.
V(Trunk Release):The trunk will unlock when this
button is pressed, as long as the trunk lockout is
not engaged. You can open the trunk with the
transmitter when the vehicle speed is less than 2 mph
(3 km/h). The headlamps will ¯ash twice.
L(Panic):The horn will sound and the headlamps
and interior lamps will ¯ash alternately when this button
is pressed. They can be turned off by pressing the
panic button again or by turning the ignition to ON. The
alarm will sound for two minutes unless cancelled by
the driver.
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.
Radio Personalization
Your vehicle can store different radio preset stations
depending on which keyless entry transmitter you use to
unlock the doors. The radio will recall all the stored
settings associated with that transmitter. Any radio
setting changes will be assigned to the transmitter last
used to unlock the doors.
This feature can be disabled by your dealer if you
desire. Contact your dealer for further information.
2-5

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

Rear Door Security Locks
If your vehicle is a
four-door model, it is
equipped with rear door
security locks that
help prevent passengers
from opening the rear
doors on your vehicle from
the inside.
Using the Rear Door Security Lock
1. Use a key to move the lock all the way up.
2. Close the door.
3. Do the same thing to the other rear door lock.
The rear doors on your vehicle cannot be opened from
the inside when this feature is in use.
Opening a Rear Door When the
Security Lock is On
1. Unlock the door from the inside.
2. Then open the door from the outside.
If you don't cancel the security lock feature, adults or
older children who ride in the rear won't be able to open
the rear door from the inside. You should let adults
and older children know how to cancel the locks.
Canceling the Rear Door Security Lock
1. Unlock the door from the inside and open the
door from the outside.
2. Use a key to move the lock all the way down.
3. Do the same for the other rear door.
The rear door lock will now work normally.
2-9

Emergency Trunk Release Handle
Notice:The emergency trunk release handle is not
designed to be used to tie down the trunk lid or
as an anchor point when securing items in the trunk.
Improper use of the emergency trunk release
handle could damage it.There is a glow-in-the-dark emergency trunk release
handle located on the inside of the trunk lid of your
vehicle. This handle will glow following exposure to light.
Pull the release handle up to open the trunk from the
inside.
Trap-Resistant Trunk Kit
To help prevent a child from becoming trapped in your
trunk, you can order a trap-resistant trunk kit from
your dealer. This kit includes:
·a modi®ed trunk latch,
·a lighted release handle, and
·seatback tethers (for vehicles with folding rear
seatbacks).
See your dealer for additional information.
2-12

Theft-Deterrent Systems
Vehicle theft is big business, especially in some cities.
Although your vehicle has a number of theft-deterrent
features, we know that nothing we put on it can make it
impossible to steal.
Content Theft-Deterrent
Arming the System
With the ignition off, pressing the remote keyless entry
transmitter LOCK button will arm the system
immediately after all doors and the trunk are closed. If
the transmitter LOCK button is pressed again within ®ve
seconds, the horn will chirp to con®rm that the system
has been armed.
Once the system is armed, the THEFT SYSTEM light
on your instrument panel will ¯ash and remain ¯ashing.
This con®rms the system is armed and monitoring
the doors and trunk. If the light is on solid, the system is
not properly activated due to either a door or the
trunk being ajar.
If you don't want to arm the system, lock the car with
the lock levers on the doors or with the power door lock
switch.
Disarming the System
If the system is armed, pressing the UNLOCK button on
the transmitter will disarm the system. The THEFT
SYSTEM light will stop ¯ashing.
If the system is armed, turning the key to START will
also disarm the system.
If the system is armed and the trunk is opened using
the trunk release button on the transmitter, the system
will temporarily disarm itself and re-arm when the
trunk has been closed. This allows the customer to exit
the vehicle, lock the doors using the transmitter, and
open the trunk using the transmitter without having
to disarm and subsequently re-arm the system.
How the System Alarm is Activated
If the system is armed, opening any door or trunk, or
using a wrong key to start the vehicle will cause a
pre-alarm chirp for 10 seconds and then a full alarm of
horn and headlights for two minutes.
If an alarm event has ®nished and all doors and trunk
are closed, the content theft security system will re-arm
itself.
2-15