2004 CHEVROLET IMPALA horn

L(Remote Alarm):Press this button to activate an
alarm. The ignition must be in OFF or ACC for the
remote alarm to work. When you press the remote
button, the headlamps will ash, the horn will sound
repeatedly and your interior lamps will turn on attracting
attention if you need it. The alarm will continue until
one of the following occurs:
The remote alarm button is pressed a second time,
the vehicle’s ignition is turned to ON or
an alarm period of 110 seconds has elapsed.
V(Trunk Release):Press the button to release
the trunk.
Operating the remote keyless entry transmitter may
interact with the content theft-deterrent system, if your
vehicle has this option. SeeContent Theft-Deterrent
on page 2-15.
Transmitter Verication
This feature provides feedback that a command has
been received by the vehicle, if your key fob has been
programmed to Mode 3: Full, see Fob Horn (Remote
Audible Verication) underVehicle Personalization
on page 2-44for more information. The headlamps and
back-up lamps will ash on every lock command and
on the rst unlock command. The horn will also
sound once for every lock and twice for the rst unlock
command. Silent operation and other options may
be selected for this feature.
If your vehicle has the optional content theft-deterrent
system, the rst time the remote unlock is received and
the alarm has been previously activated, three ashes
from the headlamps will be seen and three chirps will be
heard to indicate an alarm condition has occurred
since last arming. SeeContent Theft-Deterrent on
page 2-15.
2-5

Battery Replacement
Under normal use, the battery in your remote keyless
entry transmitter should last about three years.
You can tell the battery is weak if the transmitter won’t
work at the normal range in any location. If you have
to get close to your vehicle before the transmitter works,
it’s probably time to change the battery.
Notice:When replacing the battery, use care not to
touch any of the circuitry. Static from your body
transferred to these surfaces may damage the
transmitter.To replace the battery do the following:
1. Insert a at object like a coin into the slot on the
back of the transmitter. Gently pry apart the front
and back.
2. Gently pry the battery out of the transmitter. Do not
use a metal object.
3. Put the new battery into the transmitter as shown
on the transmitter. Use type CR2032 battery or
equivalent.
4. Put the two halves back together. Make sure the
halves are together tightly so water won’t get in.
5. Resynchronize and then test the transmitter.
Resynchronization
After you have changed the battery in your transmitter,
you will need to resynchronize the transmitter. To do this,
press the LOCK and UNLOCK buttons on the transmitter
at the same time and hold for about seven seconds or
until one horn chirp is heard.
2-7

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
Your vehicle may have the optional content
theft-deterrent alarm system.
With this system, a light on the radio will ash.
This light reminds you to activate the theft-deterrent
system. Here’s how to do it:
1. Open the door.
2. Lock the door with the power door lock switch or
the remote keyless entry transmitter. The light on
the radio should come on and stay on. If you
are using the remote keyless entry transmitter, the
door does not need to be open.
3. Close all doors. The light on the radio will slowly
ash once the system is armed.Once armed, the alarm will go off if someone tries to
enter the vehicle (without using the remote keyless entry
transmitter or a key) or turns the ignition on with an
incorrect key. The horn will sound and the headlamps
and back-up lamps will ash for approximately two
minutes.
When the alarm is armed, the trunk may be opened with
the remote keyless entry transmitter. If you use the key to
open the trunk, the alarm will sound. The power door lock
switches are also disabled. You must use your remote
keyless entry transmitter or your key to unlock the doors
when the system is armed.
Arming with the Power Lock Switch
Your alarm system will arm when you use either power
lock switch to lock the doors while any door or the
trunk is open and the key is removed from the ignition.
The light on the radio ashes quickly to let you know
when the system is ready to arm with the power
door lock switches. The light on the radio will stop
ashing and stay on when you press the bottom of the
power lock switch, to let you know the system is
arming. After all doors and the trunk are closed and
locked, the light on the radio will ash slowly to let you
know the system is armed.
2-15

Arming with the Remote Keyless Entry
Transmitter
Your alarm system will arm when you use your remote
keyless entry transmitter to lock the doors, if the key
is not in the ignition. The light on the radio will turn on to
let you know the system is arming. After all doors and
the trunk are closed and locked, the light on the
radio will begin ashing at a very slow rate to let you
know the system is armed.
Disarming with the Remote Keyless
Entry Transmitter
Your alarm system will disarm when you use your
remote keyless entry transmitter to unlock the doors.
The light on the radio will go off to let you know
the system is no longer armed.
The rst time a remote UNLOCK command is received,
three ashes will be seen and three horn chirps heard to
indicate an alarm condition has occurred since last
arming.
Disarming with Your Key
Your alarm system will disarm when you use your key
to unlock the doors. The light on the radio will go
off to let you know the system is no longer armed.
Passlock®
Your vehicle is equipped with the Passlock®
theft-deterrent system.
Passlock
®is a passive theft-deterrent system. Passlock®
enables 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 and
the engine will not start.
During normal operation, the SECURITY message will
be displayed after the key is turned to the ON ignition
position. SeeSecurity Message on page 3-49.
If the engine stalls and the SECURITY message
ashes, wait until the light stops ashing before trying to
restart the engine.
If the engine is running and the SECURITY message
comes on, you will be able to restart the engine if
you turn the engine off. However, your Passlock
®
system is not working properly and must be serviced by
your dealer. Your vehicle is not protected by Passlock®
at this time. You may also want to check the fuse.
SeeFuses and Circuit Breakers on page 5-103. See your
dealer for service.
In an emergency, contact Chevrolet Roadside
Assistance. SeeRoadside Assistance Program on
page 7-6for more information.
2-16

Vehicle Personalization
Some of the convenience features can be reset or
customized to perform according to your preference.
Features you can program depend upon the options that
came with your vehicle. The following list shows features
that can be reset or customized along with the options.
Settings (Available for All)
GM Oil Life System Reset (Available for All)
Low Tire Pressure Reset (If Equipped)
Delayed Headlamp Illumination (Available for All)
Automatic Door Lock and Unlock (Available for All)
Remote Visual Verication (Available with Remote
Keyless Entry)
Remote Audible Verication (Available with Remote
Keyless Entry)
Content Theft Operation (Optional with Content Theft
System)
Trunk Jamb (Optional with Content Theft System)
Horn Chirp On Timer (Available with Remote
Keyless Entry)
Remote Keyless Entry Transmitter Programming
(Available with Remote Keyless Entry)
Return to Original Factory Settings (Available
for All)
Exit Vehicle Customization Mode
Programmable Modes
To reset or customize the features, rst enter the
vehicle customization main menu. To enter the main
menu, do the following:
1. Turn the ignition to ACC or ON. The radio must
be off.
2. Press and hold the TUNE or DISP knob on the
radio for at least ve seconds until SETTINGS is
displayed.
3. Press the SEEK or PSCAN up or down arrows to
scroll through each available feature on your
main menu.
4. Press the PREV or NEXT buttons to scroll through
the lower menu. An asterisk (*) will appear next to
the item that is the current setting.
The following information shows how to reset or
customize features after entering the main menu.
2-44

Your vehicle was originally programmed to Mode 2. The
mode may have been changed since then. To determine
the current mode, or to change the mode, do the
following:
1. Scroll, using the SEEK/PSCAN up or down arrows,
until FOB LIGHT appears on the display.
2. Press the PREV or NEXT button to enter the
submenu. The current selection will have an
asterisk (*) next to it. If you do not wish to change
the current mode, you can either exit the
programming mode by following the directions later
in this section or program the next feature
available on your vehicle.
3. Scroll, using the PREV or NEXT buttons, through
the modes to change the current mode.
4. With your preference displayed, press the
TUNE/DISP button to select. A chime will be heard
to verify the new setting. A new selection will be
displayed with an asterisk (*) for one second.
If your vehicle has the optional content theft-deterrent
system, the rst time a remote UNLOCK command
is received, three ashes will be seen and three horn
chirps heard to indicate an alarm condition has occurred
since last arming. SeeTheft-Deterrent Systems on
page 2-15.The mode you selected is now set. You can either exit
the programming mode by following the instructions
later in this section or program the next feature available
on your vehicle.
FOB HORN (Remote Audible
Verication)
This feature allows the horn to chirp when the remote
keyless entry transmitter is used to lock or unlock
the vehicle or to program no verication.
Programmable Modes
Mode 1:OFF
Mode 2:PARTIAL — One chirp for each remote LOCK
command/no chirp for remote UNLOCK command.
Mode 3:FULL — One chirp for each remote LOCK
command/two chirps for the rst remote UNLOCK
command.
2-48

Your vehicle was originally programmed to Mode 2. The
mode may have been changed since then. To determine
the current mode, or to change the mode, do the
following:
1. Scroll, using the SEEK/PSCAN up or down arrows,
until FOB HORN appears on the display.
2. Press the PREV or NEXT button to enter the
submenu. The current selection will have an
asterisk (*) next to it. If you do not wish to change
the current mode, you can either exit the
programming mode by following the directions later
in this section or program the next feature
available on your vehicle.
3. Scroll, using the PREV or NEXT buttons, through
the modes to change the current mode.
4. With your preference displayed, press the TUNE/
DISP button to select. A chime will be heard to
verify the new setting. The new selection will
be displayed with an asterisk (*) for one second.
If your vehicle has the optional content theft-deterrent
system, the rst time the remote UNLOCK command is
received three ashes will be seen and three chirps
will be heard to indicate an alarm condition has occurred
since last arming. SeeTheft-Deterrent Systems on
page 2-15.The mode you selected is now set. You can either exit
the programming mode by following the instructions
later in this section or program the next feature available
on your vehicle.
ALARM (Content Theft Operation)
This feature allows the content theft-deterrent system to
be turned on or off.
Programmable Modes
Mode 1:ALRM OFF
Mode 2:ALRM ON
Your vehicle was originally programmed to Mode 2. The
mode may have been changed since then. To determine
the current mode, or to change the mode, do the
following:
1. Scroll, using the SEEK/PSCAN up or down arrows,
until ALARM appears on the display.
2. Press the PREV or NEXT button to enter the
submenu. The current selection will have an
asterisk (*) next to it. If you do not wish to change
the current mode, you can either exit the
programming mode by following the directions later
in this section or program the next feature
available on your vehicle.
2-49

CHIRP (Horn Chirp Timer)
This feature allows you to choose between short or long
horn chirp sounds when the remote keyless entry
transmitter is used.
Programmable Modes
Mode 1:SHORT
Mode 2:LONG
Your vehicle was originally programmed to Mode 1. The
mode may have been changed since then. To determine
the current mode, or to change the mode, do the
following:
1. Scroll, using the SEEK/PSCAN up or down arrows,
until CHIRP appears on the display.
2. Press the PREV or NEXT button to enter the
submenu. The current selection will have an
asterisk (*) next to it. If you do not wish to change
the current mode, you can either exit the
programming mode by following the directions later
in this section or program the next feature
available on your vehicle.
3. Scroll, using the PREV or NEXT buttons, through
the modes to change the current mode.4. With your preference displayed, press the
TUNE/DISP button to select. A chime will be heard
to verify the new setting. The new selection will
be displayed with an asterisk (*) for one second.
The mode you selected is now set. You can either exit
the programming mode by following the instructions
later in this section or program the next feature available
on your vehicle.
ORIG. SET (Return to the Original
Settings)
This feature allows you to return all feature
customization settings back to their original factory
settings. To reset do the following:
1. Scroll, using the SEEK/PSCAN up or down arrows,
until ORIG. SET appears on the display.
2. Press the PREV or NEXT button to enter the
submenu. SET ALL will appear.
3. With your preference displayed, press the
TUNE/DISP button to select. A chime will be heard
to verify the new setting. The new selection will
be displayed with an asterisk (*) for one second.
The original factory settings are now reset. You can
either exit the programming mode by following the
instructions later in this section or program the next
feature available on your vehicle.
2-51