1999 GMC YUKON lock

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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 modifications to this system by other than an
authorized service facility could void authorization to
use this equipment.
This system has a range of about 3 feet (1 m) up to 30 feet
(9 m). 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 to determine if battery replacement or
transmitter resynchronization is necessary. See the
instructions that follow.

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.
If you're still having trouble, see your dealer or a
qualified technician for service.
Operation
The driver's door will unlock automatically when
UNLOCK is pressed. If UNLOCK is pressed again
within five seconds, the passenger's doors will also
unlock. All doors will lock when LOCK is pressed.
The tailgate or panel doors will unlock when the
REAR 2X button is pressed twice within five seconds,
as long as the ignition is turned to OFF. If the ignition is
on, the REAR 2X button will only work if the
transmission is in PARK (P).
The system will turn on the interior lamps for about
40 seconds (or until the ignition is turned to RUN),
when you unlock the doors, tailgate or panel doors. The
interior lamps will go off when you lock the doors.
Operating the keyless entry transmitter may interact
with the theft
-deterrent system. See ªTheft-Deterrent
Systemº in the Index.

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Alarm/Panic Mode
The theft
-deterrent system provides a fourth button on
your transmitter. This button is the alarm/panic button. If
you are involved in a panic situation, press this button and
your vehicle's horn will sound and the headlamps will
flash. This will draw needed attention to you and your
vehicle. To turn this feature off, either push the panic
button again or turn the ignition to RUN. This feature
will not work if your ignition is on or if the transmitter is
30 feet (9 m) or more away from your vehicle.
Transmitter Verification
This feature provides feedback to the holder of the
keyless entry transmitter that a command has been
received by the keyless entry receiver. The headlamps
and parking lamps will flash on every lock and unlock
command and the horn will sound only if the LOCK
button is pressed twice within five seconds. This allows
for silent operation of locking and unlocking, unless a
confirming horn chirp is desired. Other options may be
selected for this feature (see ªFeature Customizationº in
the Index).
Matching Transmitter(s) To Your Vehicle
Each remote keyless entry transmitter is coded to
prevent another transmitter from unlocking your vehicle.
If a transmitter is lost or stolen, a replacement can be
purchased through your dealer. Remember to bring any
remaining transmitters with you when you go to your
dealer. When the dealer matches the replacement
transmitter to your vehicle, any remaining transmitters
must also be matched. Once your dealer has coded the
new transmitter, the lost transmitter will not unlock your
vehicle. Each vehicle can have only four transmitters
matched to it.
Have each transmitter you intend to match ready for the
next steps. To match transmitters to your vehicle:
1. Turn the ignition to RUN, then to OFF. This will
disarm the theft
-deterrent system.
2. Remove the RADIO fuse (Fuse 17). This fuse is
located in the main fuse block, which is located on
the left side of your main instrument panel. When
the fuse block is open the radio fuse is located on the
lower right hand corner of your instrument panel.
See ªFuses and Circuit Breakersº in the Index.

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3. Turn the ignition from OFF to RUN three times
quickly (within five seconds). The vehicle will
respond by locking the doors, unlocking the driver's
doors and releasing the tailgate or panel doors. Your
transmitter is now ready to match the vehicle.
4. Press and hold the LOCK and UNLOCK buttons on
the first transmitter for 15 seconds. The vehicle will
respond as in Step 3.
5. Repeat Step 4 for the remaining transmitters.
6. When you have finished matching all of your
transmitters, replace the RADIO fuse (Fuse 17).
7. Check that all transmitters work by pressing
their buttons.
If the transmitters don't work, or if you'd rather not
match the transmitters yourself, see your dealer.Battery Replacement
Under normal use, the battery in your remote keyless
entry transmitter should last about two 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.
Use one three volt, type CR2032, or equivalent battery.

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To replace the battery:
1. Insert a small coin, or flathead screwdriver, to
separate the bottom of the transmitter from the top.
2. Remove the battery and replace it with a new one,
making sure the positive (+) side of the battery is
facing down.3. Snap the top and bottom together.
4. Test the operation of the transmitter with your
vehicle. If the transmitter does not work, try
synchronizing the transmitter with the receiver.
Resynchronization
Resynchronization may be necessary due to the security
method used by this system. The transmitter does not
send the same signal twice to the receiver. The receiver
will not respond to a signal it has been sent previously.
This prevents anyone from recording and playing back
the signal from the transmitter.
To resynchronize your transmitter, stand close to your
vehicle and simultaneously press and hold the LOCK
and UNLOCK buttons on the transmitter for at least
eight seconds. The door locks should cycle and the
parking lamps and headlamps should flash to confirm
synchronization. If this does not happen, you may need
to replace the battery in your transmitter or match the
transmitter to your vehicle. If the locks still do not cycle,
see your dealer for service.

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Rear Doors
CAUTION:
It can be dangerous to drive with the tailgate
glass, tailgate or rear doors open because carbon
monoxide (CO) gas can come into your vehicle.
You can't see or smell CO. It can cause
unconsciousness and even death.
If you must drive with the tailgate glass, tailgate
or rear doors open or if electrical wiring or other
cable connections must pass through the seal
between the body and the tailgate glass, tailgate
or rear doors:

Make sure all other windows are shut.

Turn the fan on your heating or cooling
system to its highest speed with the setting on
VENT. That will force outside air into your
vehicle. See ªComfort Controlsº in the Index.

If you have air outlets on or under the
instrument panel, open them all the way.
See ªEngine Exhaustº in the Index.
Tailgate Glass and Tailgate
If your vehicle has a tailgate, you must raise the rear
glass before lowering the tailgate.
To open the glass from the outside, use your key. With
the key in the lock, turn the key clockwise to release the
glass, then lift it up.
To release the glass from the inside, use the electric
tailgate glass release switch on the instrument panel. For
more information, see ªTailgate
-- Electric Glass
Releaseº in the Index.
To open the tailgate, lift up on the handle while pulling
the tailgate toward you.
Close the tailgate before closing the rear glass. After
closing the tailgate, make sure the tailgate is securely
latched by pulling it toward you. After closing the rear
glass, pull up on its handle to make sure it is locked.

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To open the rear panel doors, you must open the
passenger's side panel door first. If the door is locked,
insert your door key in the lock and turn it
counterclockwise to unlock it.
To open the passenger's side panel door, pull up on the
handle and pull the door open.
To open the driver's side panel door, first open the
passenger's side panel door. Then, pull the handle on the
left door edge outward and pull the door open.
The rear doors have a check assembly to keep them
from fully opening during normal use.
To fully open either rear door, you must release the
check strap. To release the check strap just:
1. Open the door partway until the white mark on the
check strap is fully outside the door edge. If the end
of the strap catches the pin on the door, the door is
open too far.
2. Then, hold the strap at
the white mark, pull the
strap toward you and
open the door all
the way.
To r e
-engage the door check strap, just close the door
and the strap will catch the pin.
To close the doors, close the driver's side door first.
After securely closing the door, close the passenger's
side door. Make sure both doors are latched securely.
To lock the rear doors from outside the vehicle, put your
key in the lock and turn it clockwise. If you have power
door locks, you can lock the side doors as well as the
rear doors from inside the vehicle. For more
information, see ªPower Door Locksº in this section.

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Theft
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. However, there are ways you
can help.
Key in the Ignition
If you leave your vehicle with the keys inside, it's an
easy target for joy riders or professional thieves
-- so
don't do it.
When you park your vehicle and open the driver's door,
you'll hear a chime reminding you to remove your key
from the ignition and take it with you. Always do this.
Your steering wheel will be locked, and so will your
ignition and transmission. Also remember to lock
the doors.
Parking at Night
Park in a lighted spot, close all windows and lock your
vehicle. Remember to keep your valuables out of sight.
Put them in a storage area, or take them with you.
Parking Lots
If you park in a lot where someone will be watching
your vehicle, it's best to lock it up and take your keys.
But what if you have to leave your ignition key? What if
you have to leave something valuable in your vehicle?

Put your valuables in a storage area, like your
glove box.

Lock all the doors except the driver's.
Theft-Deterrent System
Your vehicle has a theft-deterrent alarm system. Once
armed, the system will sound the horn and flash the
parking lamps if the vehicle is tampered with.
Opening the doors may activate the alarm. See
ªDisarming the Systemº later in this section for further
information on turning the system off.

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A shock sensor triggers the alarm when it detects a blow
to your vehicle. It is located in the center floor console.
There are two levels of alarms via the shock sensor: two
horn blasts and the headlamp/parking lamps flash for
non
-threatening blows to the vehicle or a full
two
-minute alarm for harder blows to the vehicle. Its
sensitivity can be adjusted if more or less sensitivity is
desired. If sensitivity is increased too much, it may give
false alarms caused by gusts of wind or other natural
events that may shake the vehicle.
The adjustment for the
shock sensor sensitivity can
be accessed through a hole
in the forward wall of the
main bin of the center
floor console.
Using a small flat
-tipped screwdriver, turn the adjuster
clockwise to increase sensitivity and turn counterclockwiseto decrease sensitivity. The shock sensor is ignored by the
alarm system when the ignition is on, when the tailgate or
panel doors are open, when the alarm is disarmed, when
customized to be ignored and for five seconds after the
horn sounds an alarm or chirp. The shock sensor is
ignored after triggering three full alarms until the system
is rearmed.
Arming the System
The alarm system can be armed to detect break-ins by
locking your vehicle using the keyless entry or by
locking the doors with the power door lock switch.
Passive arming is also available if you would like the
system to arm all by itself after the doors have been
closed for a short time. See ªFeature Customizationº in
the Index. When the system is armed, a red light will
flash on the center floor console briefly once every two
seconds. If you return to your vehicle and the red light is
flashing two brief flashes every two seconds, the system
is armed and the shock sensor had triggered a two
minute alarm. If the red light is flashing three times
every two seconds, the system is armed and there was an
intrusion that sounded the alarm.
Horn chirps and parking lamp flashes can be set to
your choice.