2002 GMC YUKON XL horn

2-10Operation UNLOCK: Pressing this button once will unlock the
driver's door. The interior lamps will come on. Pressing
UNLOCK again within three seconds will cause the
remaining doors to unlock.
You can choose different feedback options for each
press of the UNLOCK button, such as having the
perimeter lamps come on and/or have the horn chirp.
See ªSecondary Information Centerº in the Index for
more information.
LOCK: Pressing this button once will lock all of the
doors. You can choose different feedback options for
each press of the LOCK button, such as having the
perimeter lamps come on and/or have the horn chirp.
See ªSecondary Information Centerº in the Index for
more information.
Operating the keyless entry transmitter may interact
with the theft
- deterrent system. See ªContent
- Theft
Deterrentº and ªSecondary Information Centerº in the
Index for more information. Remote Panic Alarm
When the horn symbol on the remote keyless entry
transmitter is pressed, the horn will sound and the
headlamps and taillamps will flash for up to 30 seconds.
This can be turned off by pressing the horn symbol
again, waiting for 30 seconds, or starting the vehicle.
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 a maximum of four
transmitters matched to it.

2-14Content Theft -
DeterrentYour vehicle is equipped with a content theft
- deterrent
alarm system.
With this system, the
SECURITY message will
flash as you open the door
(if your ignition is off).
This message 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 SECURITY
message 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 SECURITY message should go
off after approximately 15 seconds. The alarm is not
armed until the SECURITY message goes off. If a door is opened without the key or the remote keyless
entry transmitter, the alarm will go off. Depending on
how you have programmed the alarm in the secondary
information center, the horn may sound, the headlamps
may flash or both the headlamps and the horn will
activate. See ªSecondary Information Centerº in the
Index for more information.
Remember, the theft
- deterrent system won't activate if
you lock the doors with a key or use the manual door
lock. It activates only if you use a power door lock
switch with the door open, or with the remote keyless
entry transmitter. You should also remember that you
can start your vehicle with the correct ignition key if the
alarm has been set off.
Here's how to avoid setting off the alarm by accident:

If you don't want to activate the theft
- deterrent
system, the vehicle should be locked with the door
key after the doors are closed.

Always unlock a door with a key, or use the remote
keyless entry transmitter. Unlocking a door any other
way will set off the alarm if the system has been armed.
If you set off the alarm by accident, unlock any door
with the key. You can also turn off the alarm by pressing
UNLOCK on the remote keyless entry transmitter or by
placing the key in the ignition and turning it to START.

2-15Testing the Alarm The alarm can be tested by following these steps:
1. From inside the vehicle, lower the driver's window
and open the driver's door.
2. Activate the system by locking the doors with the
power door lock switch while the door is open, or
with the remote keyless entry transmitter.
3. Get out of the vehicle, close the door and wait for the
SECURITY message to go out.
4. Then reach in through the window, unlock the
door with the manual door lock and open the door.
This should set off the alarm.
If the alarm does not sound when it should but the
headlamps flash, check to see if the horn works.
The horn fuse may be blown. To replace the fuse,
see ªFuses and Circuit Breakersº in the Index.
If the alarm does not sound or the headlamps do not
flash, the vehicle should be serviced by an authorized
service center. 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.
If the engine stalls and the SECURITY message flashes,
wait until the message stops flashing before trying to
restart the engine. Remember to release the key from
START as soon as the engine starts.
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 (see ªFuses
and Circuit Breakersº in the Index). See your dealer
for service.
In an emergency, call the GMC Roadside Assistance
Center. See ªRoadside Assistanceº in the Index.

2-30Locking Rear Axle Your locking rear axle can give you additional traction
on snow, mud, ice, sand or gravel. It works like a
standard axle most of the time, but when one of the rear
wheels has no traction and the other does, this feature
will allow the wheel with traction to move the vehicle.
All -
Wheel DriveWith this feature, engine power is sent to all four wheels
when extra traction is needed.
This is like four
- wheel drive, but there is no separate
lever or switch to engage or disengage the front axle.
It is fully automatic, and adjusts itself as needed for
road conditions.
Horn To sound the horn, press the center pad on the
steering wheel. Tilt Wheel The tilt steering wheel allows you to adjust the steering
wheel before you drive. You can raise it to the highest
level to give your legs more room when you enter and
exit the vehicle.
The tilt lever is located
on the driver's side of the
steering column under
the turn signal lever.
To tilt the wheel, hold the steering wheel and pull the
lever. Move the steering wheel to a comfortable level,
then release the lever to lock the wheel in place.

2-56
OnStar MED
- NET: Med
- Net can store your
personal medical history and provide it to emergency
personnel if necessary. (Requires activation and an
additional fee.)

Accident Assist: An advisor can provide
step
- by
- step guidance following an accident.

Remote Door Unlock: To contact the center,
call 1
- 888
- 4
- ONSTAR. You will be required to
provide your security information. An advisor will
send a command to your vehicle to unlock itself.
The advisor can delay unlocking your vehicle.
Remote Door Unlock is disabled 48 hours after the
vehicle is parked to maintain the battery charge.

Vehicle Locator Service: To contact the center,
call 1
- 888
- 4
- ONSTAR. You will be required to
provide your security information. An advisor will
send a command to your vehicle to sound the horn
and/or flash the lamps.
In order to provide you with excellent service, calls with
the OnStar Center may be monitored or recorded.

Route Support: An advisor can provide directions
or guidance to anywhere you want to go. In addition,
they can help you locate gas stations, rest areas,
ATMs, hospitals, hotels, stores, eateries and more.
Ride Assist: An advisor can locate transportation in
the event that you are unable to drive.

Concierge Services: The concierge advisor can
obtain tickets, reservations or help with vacation/trip
planning and other unique items and services.
OnStar System Limitations Complete limitations can be found on the subscriber
services agreement.
In order to provide you with excellent service, calls with
the OnStar Center may be monitored or recorded.
OnStar Service is:

available in the 48 contiguous United States, Alaska,
Hawaii and Canada;

available when the vehicle is within the operating
range of a cellular provider;

subject to limitations caused by atmospheric
conditions, such as severe weather or topographical
conditions, such as mountainous terrain.

subject to cellular carrier equipment limitations.

2-86
You can just let the SIC exit the personalization
mode on its own by waiting approximately
15 seconds without touching any buttons.
The SIC will then display the day/date.

Or you can press the MENU key to move on to
the next programmable feature.
The following is a list of the personal settings that can
be changed:
Automatic Door Lock

Enabled : Doors automatically lock when the vehicle
is shifted out of Park (P).

Disabled : Doors do not lock automatically.
Automatic Door Unlock

Driver : Driver's door unlocks when the vehicle is
shifted into Park (P).

All : All doors unlock when the vehicle is shifted into
Park (P).

Disabled : Doors do not unlock automatically. Remote Lock Feedback

Horn : Horn chirps on second press of the LOCK
button on the keyless entry transmitter.

Lamps : Parking lamps flash on each press of the
LOCK button on the keyless entry transmitter.

Horn and Lamps : Parking lamps flash on each
press, horn chirps on second press of UNLOCK on
the keyless entry transmitter.

None : No horn or lamp feedback to the LOCK
button on the keyless entry transmitter.
Remote Unlock Feedback

Horn : Horn chirps on each press of the UNLOCK
button on the keyless entry transmitter.

Lamps : Parking lamps flash on each press of the
UNLOCK button on the keyless entry transmitter.

Horn and Lamps : Parking lamps flash and horn
chirps on each press of the UNLOCK button on the
keyless entry transmitter.

None : No horn or lamp feedback will occur when
the UNLOCK button on the keyless entry transmitter
is pressed.

2-87Headlamp Delay

None : Headlamps do not stay on after the ignition is
turned to OFF.

10/20/30/60/120/180 Seconds : Amount of
time headlamps stay on after the ignition is turned
to OFF when it is dark (switch must be in auto
headlamp position).
Perimeter Lamps

Enabled : Parking lamps, headlamps and puddle
lamps turn on for 40 seconds with the UNLOCK
button on the keyless entry transmitter. This feature
only operates when it is dark.

Disabled : Feature disabled, no perimeter lamps will
come on. Alarm Warning

Horn : Horn will sound when alarm is active.

Lamps : Headlamps and park lamps will cycle on
and off when alarm is activated.

Horn and Lamps : Horn and lamps will alternate
when the alarm is activated.

None : No alarm warning will come on.
Language

English : All information displayed in English.

French : All information displayed in French.

Spanish : All information displayed in Spanish.

Arabic : All information displayed in Arabic.
Display Units

English : Units displayed in English units.

Metric : Units displayed in metric units.

2-88 Day/Date/Time

The RESET button will enable the operator to reset
the day/date/time. Each press of the RESET button
will scroll through the following: set year, set month,
set day, set hour, set minutes and set AM/PM.

Whichever is currently selected (i.e. year, month,
day, etc.) will flash. The arrow button is then used to
adjust the value. Each press of the arrow button will
change the value by one. If the arrow button is
pushed and held, the value will keep changing until
the button is released.

While in menu mode, the SIC will display the
day/date if no buttons have been pressed for
more than 15 seconds. Language and Personalization Reset
1. Press and hold the MENU button. After two seconds,
the display will begin cycling through the languages
at one second intervals. Release the MENU button
when the desired language is displayed.
2. The previous action will also reset the
personalization values to their factory default
settings which are as follows.

Automatic Door Lock: Enabled

Automatic Door Unlock: All

Remote Lock Feedback: Horn

Remote Unlock Feedback: Lamps

Headlamp Delay: 30 seconds

Perimeter Lamps: Enabled

Alarm Warning: Horn and Lamps

Display Units: English