1999 CHEVROLET VENTURE keyless

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2. Gently pry the battery out of the transmitter. Do not
use the metal flanges to ªpop outº the battery.
3. Replace the battery.
4. Reassemble the transmitter. Make sure the halves are
snapped together tightly so water will not get in.
5. Check the transmitter operation. If needed, follow
the instructions on resynchronizing your
remote transmitter.
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.
Resynchronization
Your remote keyless entry system uses a continually
changing code for increased security. Normally, the
receiver in your vehicle will keep track of this
changing code.

Loss of synchronization will occur if the transmitter
is activated more than 256 times while out of range
of the vehicle.

Loss of synchronization will occur after the battery
replacement if the transmitter is immediately
activated more than 16 times while out of range of
the vehicle.
If your remote keyless entry transmitter has stopped
working, you may need to resynchronize the transmitter
to the vehicle receiver. To do this, press the LOCK and
UNLOCK buttons together and hold for at least seven
seconds or until the horn sounds if equipped with
Content the Theft
-Deterrent system. Check the
transmitter operation.

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To change the mode:
1. Follow the instructions for ªEntering Programming
Modeº listed previously.
2. Press LOCK on the power door lock switch.
3. Count the number of chimes you hear. The number
of chimes tells you which mode your vehicle is in.
You can change the mode by pressing LOCK again.
4. Repeat Step 2 until you hear the number of chimes
that matches the mode you want.
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.
Last Door Closed Locking and
Lockout Prevention
With the Last Door Closed Locking and Lockout
Prevention features, your vehicle will do the following:

If you leave your key in the ignition and leave the
driver's door open, you won't be able to lock the
doors using the power door lock switch.
When you press LOCK on the power door lock
switch or remote keyless entry transmitter (if
equipped) while any door or the liftgate is open, the
doors will not lock. Instead you will hear three
chimes, which let you know that the Last Door
Closed Locking feature is in operation. Five seconds
after all the doors and the liftgate are closed, all the
doors and the liftgate will automatically lock.
To customize these features to your preference, see
ªProgrammable Modesº following.
Programmable Modes
Your vehicle can be programmed to one of the
following modes.
Mode 1: Both Features Off (Doors will always lock
immediately when you press LOCK on the the power
door lock switch or the remote keyless entry transmitter,
if equipped.)
Mode 2: Lockout Deterrent Only (If you leave your key
in the ignition with the driver's door open, you won't be
able to lock the doors with the power door locks.)

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Mode 3: Last Door Closed Locking Only (If the power
door lock switch or remote keyless entry transmitter (if
equipped) is used to lock the vehicle while any door or
the liftgate is open, you will hear three chimes. The
doors will not lock. Five seconds after the last door is
closed, all doors and liftgate will lock.)
Mode 4: Both Features On (This combines Modes 2
and 3.)
Vehicles are delivered programmed in Mode 4.
To change the mode:
1. Follow the instructions for ªEntering Programming
Modeº listed previously.
2. Press UNLOCK on the power door lock switch.
3. Count the number of chimes you hear. The number
of chimes tells you which mode your vehicle is in.
You can change the mode by pressing
UNLOCK again.
4. Repeat Step 2 until you hear the number of chimes
that matches the mode you want.
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.Remote Driver's Unlock Control
With the Remote Driver's Unlock Control feature, you
can program your vehicle to do the following:

When you press UNLOCK on your remote keyless
entry transmitter, the driver's door will unlock and,

When you press UNLOCK on your remote keyless
entry transmitter again within five seconds, all doors
and the liftgate will unlock.
To customize this feature to your preference, see
ªProgrammable Modesº following.
Programmable Modes
Your vehicle can be programmed to one of the
following modes.
Mode 1: Remote All Doors Unlock (When you press
UNLOCK on your remote keyless entry transmitter, all
doors and the liftgate will unlock.)
Mode 2: Remote Driver's Door Unlock Only (When
you press UNLOCK on your remote keyless entry
transmitter once, the driver's door will unlock. When
you press UNLOCK on your remote keyless entry
transmitter again within five seconds, all doors and the
liftgate will unlock.)
Vehicles are delivered programmed in Mode 2.

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To change the mode:
1. Follow the instructions for ªEntering Programming
Modeº listed previously.
2. Press UNLOCK on the remote keyless entry transmitter.
3. Count the number of chimes you hear. The number of
chimes tells you which mode your vehicle is in. You
can change the mode by pressing UNLOCK again.
4. Repeat Step 2 until you hear the number of chimes
that matches the mode you want.
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.
Remote Lock and Unlock Confirmation
With the Remote Lock and Unlock Confirmation
feature, your vehicle can do the following:

When you use the remote keyless entry transmitter to
lock your vehicle, your parking lamps will flash
briefly to let you know the command has been
received. If you press LOCK on the remote keyless
entry transmitter again, the horn will sound briefly
and the parking lamps will flash briefly to let you
know your vehicle is locked and,
When you use the remote keyless entry transmitter to
unlock your vehicle or operate your power sliding
door (if equipped), your parking lamps will
flash briefly.
To customize these features to your preference, see
ªProgrammable Modesº following.
Programmable Modes
Your vehicle can be programmed to one of the
following modes.
Mode 1: Both Features Off (Remote lock and unlock
confirmation are disabled.)
Mode 2: Exterior Lamps Flash Only

When you use the remote keyless entry transmitter to
lock your vehicle, your parking lamps will flash
briefly to let you know the command has
been received.

When you use the remote keyless entry transmitter to
unlock your vehicle or operate your power sliding
door (if equipped), your parking lamps will flash
briefly to let you know the command has
been received.

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Mode 3: Exterior Lamps Flash and Horn Sound

When you use the remote keyless entry transmitter to
lock your vehicle, the horn will sound briefly and
your parking lamps will flash briefly to let you know
the command has been received.

When you use the remote keyless entry transmitter to
unlock your vehicle or operate your power sliding
door (if equipped), your parking lamps will flash
briefly to let you know the command has
been received.
Mode 4: Exterior Lamps Flash and Horn Sound (on
Second LOCK Press)

When you use the remote keyless entry transmitter to
lock your vehicle, your parking lamps will flash
briefly to let you know the command has been
received. The horn will sound briefly and your
parking lamps will flash briefly if you press the
LOCK button again within five seconds.

When you use the remote keyless entry transmitter to
unlock your vehicle or operate your power sliding
door (if equipped), your parking lamps will flash
briefly to let you know the command has
been received.
Vehicles are delivered programmed in Mode 4.To change the mode:
1. Follow the instructions for ªEntering Programming
Modeº listed previously.
2. Press the LOCK button on the remote keyless
entry transmitter.
3. Count the number of chimes you hear. The number
of chimes tells you which mode your vehicle is in.
You can change the mode by pressing the LOCK
button again.
4. Repeat Step 2 until you hear the number of chimes
that matches the mode you want.
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.
Content Theft-Deterrent System
With the Content Theft-Deterrent System, if anyone
damages or enters your vehicle while the system is
armed, an alarm will sound and your parking lamps will
flash for two minutes.
To customize this feature to your preference, see
ªProgrammable Modesº following.

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Arming and Disarming the Content
Theft-Deterrent System
To arm and disarm the Content Theft-Deterrent system,
the system must be turned on by using Modes 1, 2 or 4
listed previously in this section under ªContent
Theft
-Deterrent System.º
With the Arming and Disarming feature, you can
program the vehicle to do the following:

Arm the system when you lock the doors using either
power door lock switch while any door or the liftgate
is open and the key is removed from the ignition.

Arm the system when you lock the doors with your
key or remote keyless entry transmitter and the key
is removed from the ignition.

Disarm the system when you unlock the doors with
your key or remote keyless entry transmitter.
To customize this feature to your preference, see
ªProgrammable Modesº following.Programmable Modes
Your vehicle can be programmed to one of the
following modes.
Mode 1: Power Door Lock Switch Arming Off

The system will arm when you lock the doors with
your key or remote keyless entry transmitter. The
key must be removed from the ignition when you
lock the doors or the Content Theft
-Deterrent system
will not arm.

The system will disarm when you unlock the doors
with your key or remote keyless entry transmitter.
Mode 2: Remote Keyless Entry Transmitter
Arm/Disarm Only

The system will arm when you lock the doors with
your remote keyless entry transmitter. The key must
be removed from the ignition when you lock the
doors or the Content Theft
-Deterrent system will
not arm.

The system will disarm when you unlock the doors
with your remote keyless entry transmitter.

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NOTE: While this mode provides increased security, it
can be a problem if your remote keyless entry
transmitter is damaged, lost or if it fails to operate for
any reason while the Content Theft
-Deterrent system is
armed. The Content Theft
-Deterrent system must be
disarmed for the engine to run while in Mode 2; your
key can no longer disarm the system.
If your vehicle is equipped with the optional dealer
installed OnStar

system, OnStar will not be able to
remotely unlock your vehicle if it has been programmed
to Mode 2.
Mode 3: Standard Arming and Disarming

The system will arm when you lock the doors using
either power door lock switch while any door or the
liftgate is open and the key is removed from
the ignition.

The system will arm when you lock the doors with
your key or remote keyless entry transmitter and the
key is removed from the ignition.

The system will disarm when you unlock the doors
with your key or remote keyless entry transmitter.
Vehicles are delivered programmed in Mode 1.To change the mode:
1. Follow the instructions for ªEntering Programming
Modeº listed previously.
2. Insert your second key fully into any door key
cylinder and turn it to the unlock position.
This step is necessary to prevent accidental
programming of this feature to Mode 2. Do not
program this feature to Mode 2 without first reading
the special note contained in the description for that
mode. The door key cylinder must remain in the
unlock position during Steps 2 through 4.
3. Press the horn symbol on the remote keyless
entry transmitter.
4. Count the number of chimes you hear. The number
of chimes tells you which mode your vehicle is in.
You can change the mode by pressing the horn
symbol on the remote keyless entry
transmitter again.

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Lock the sliding door from inside the vehicle by moving
the manual locking lever down. Unlock it by moving the
lever up.
With power door locks, the sliding door lock has a delay
feature. See ªPower Door Locksº and ªMultifunction
Alarm Locks and Lighting Choicesº in the Index.
Power Sliding Door (Option)
With this option, you can open and close the sliding
door with the switches inside your vehicle. If you have
the optional remote keyless entry system, you can also
operate the power sliding door with your remote
transmitter. See ªKeyless Entry Systemº in the Index.
CAUTION:
Leaving young children or pets unattended in
your vehicle can be dangerous. They could
operate the power sliding door. A child or others
could be injured. Do not leave children or pets
unattended in your vehicle.
To help avoid accidental operation of the sliding door,
turn the power sliding door off by pushing the bottom of
the power sliding door on/off switch.