1999 GMC YUKON center console

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1-8
Heated Rear Seats
The controls for the heated
rear seats are located on the
rear of the center floor
console, below the rear seat
audio controls.Press the top of the switch to HI or the bottom of the
switch to LO to turn on the heating elements in the
outside rear seat positions. The text HI or LO on the
switch will illuminate to indicate that the heated seat
elements are operating. The switch on the left side
operates the left seat and the switch on the right side
operates the right seat. The rear seat outside passenger's
safety belt must be attached before the heating element
in that seat will operate. To turn the heated seats off,
move the switch to the center. For more information on
heated front seats, see ªHeated Front Seatsº in
the Index.

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Your vehicle has one
double
-sided key for the
ignition and all door locks.
If you ever lose your key, your dealer will be able to
assist you with obtaining a new one.
Your vehicle also has a key
that locks and unlocks the
center floor console only.
Door Locks
CAUTION:
Unlocked doors can be dangerous.
Passengers -- especially children -- can easily
open the doors and fall out. When a door is
locked, the inside handle won't open it.
Outsiders can easily enter through an unlocked
door when you slow down or stop your vehicle.
This may not be so obvious: You increase the
chance of being thrown out of the vehicle in a
crash if the doors aren't locked. Wear safety belts
properly, lock your doors, and you will be far
better off whenever you drive your vehicle.
Side Doors
To open the door from the outside, pull the handle up
and pull the door open.
To open the door from the inside, pull the lever toward
you and push the door open.

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2-14 Shock Sensor
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.

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2-19 Theft-Deterrent Arming Verification
Your vehicle comes with the theft-deterrent arming
verification set in Mode 3. This means that if you arm
the system using the keyless entry transmitter, your
headlamps and parking lamps will flash and your horn
will chirp twice to verify that the system is armed. If it
only chirps once, the tailgate or the panel doors are open
or unlatched. In addition, if the system did not arm, the
horn will chirp once and the theft
-deterrent indicator on
the center floor console will not flash. If you arm the
system using either the power door lock switch or by
passive arming, only the headlamps and parking lamps
will flash for verification. To change the factory setting,
do the following:
1. Press the LOCK switch on the keyless
entry transmitter.
2. Count the number of chimes you hear. The number
of chimes tells you which mode your vehicle is
set for.
3. Press the LOCK switch on the keyless entry
transmitter until you hear the number of chimes that
corresponds to the mode selection you want.
Mode 1: All Off (No horn chirps or headlamps and
parking lamps will flash.)Mode 2: Horn and Lamps (Your headlamps and parking
lamps will flash and your horn will chirp twice to verify
the system is armed using any arming method.)
Headlamps and parking lamps only will flash
when disarming.
Mode 3: Horn and Lamps/Lamps (If you use the keyless
entry transmitter to arm the system, your headlamps and
parking lamps will flash and your horn will chirp twice
to verify that the system is armed. If you use either the
power door lock switch or passive arming, only your
headlamps and parking lamps will flash for
verification.) The headlamps and parking lamps will
flash only when disarming.
Mode 4: Lamps (When your vehicle arms, only your
headlamps and parking lamps will flash for
verification.) The headlamps and parking lamps will
flash only when disarming.
Driver's Door Alarm Delay
If you open the driver's door using your key, the alarm
will not sound for eight seconds.
Leaving Programming Mode
When programming is done, turn the ignition to OFF
and replace the RADIO fuse (Fuse 17).

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To turn on the auto-dimming feature, press and hold the
inside rearview mirror TEMP button for eight seconds.
See ªElectrochromic Inside Rearview Mirror with
Compass, Temperature Display and Headlamp Delayº in
the Index for further information.
To turn on the defrost feature, press the rear window
defrost button. See ªRear Window Defoggerº in the
Index for further information.
Convex Outside Mirror
Your passenger's side mirror is convex. A convex
mirror's surface is curved so you can see more from the
driver's seat.
CAUTION:
A convex mirror can make things (like other
vehicles) look farther away than they really are.
If you cut too sharply into the right lane, you
could hit a vehicle on your right. Check your
inside mirror or glance over your shoulder before
changing lanes.
Storage Compartments
Your vehicle has a variety of storage compartments
designed to store small items.
Glove Box
To open your glove box, move the release button toward
the passenger's side and pull the door open.
Center Overhead Console
Your vehicle has an overhead console. It has storage
compartments inside it. Your vehicle also has a
Universal Transmitter. See ªUniversal Transmitterº in
the Index.
Sunglasses Compartment
The center overhead compartment can be used to
conveniently store your sunglasses.
To open the center compartment, press the release
button located at the rear of the compartment door.
Place your sunglasses in the compartment door with the
lenses facing out.

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Rear Compartment
The rear compartment can be used to store a small item,
like a book.
To open the rear compartment, press the release button
located at the rear of the compartment door.
Instrument Panel Cupholder
Your vehicle has a cupholder in the middle of the
instrument panel.
To use the cupholder, pull
the handle and slide the
cupholder tray open.
To close the cupholder, slide it back into the
instrument panel.
Center Floor Console
Your vehicle has a console compartment between the
bucket seats.
To open it, insert the console key into the lock and
unlock the console. Press the button in and swing the
console lid upward.
The console key is for use on the storage compartment only.
The console has a small storage bin covered by a lid.
When open, the lid provides a writing surface. The
dealer installed OnStar

cellular telephone option
replaces the writing surface.
The console has two cupholders and two storage trays
for the front passenger and driver to use.

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Your console also has a
cupholder that swings down
for the rear seat passengers
to use.
The console also contains the following components:

Rear Seat Audio System Controls

Rear Heated Seat Switches

Rear Seat Accessory Power Outlet

Six
-Disc CD Changer

Subwoofer

Audio Amplifier
Shock Sensor Adjuster

LED (Light Emitting Diode) Theft
-Deterrent
System Indicator

Cellular Telephone (If Equipped)
For more information on these components, please see
the Index for that item.
Armrest Storage Compartment
Your vehicle has a center armrest storage compartment
in the rear seat.
Other Storage Compartments
Your vehicle includes a number of storage
compartments for storage of often
-used items.
Your vehicle has a storage pocket on each of the front
doors. You can use the pocket to store a variety of
small items.

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2-62 Accessory Power Outlets
Two auxiliary power outlets are located near the
cigarette lighter. Use these outlets to power mobile
telephones or other devices designed to operate with
vehicle electrical systems.
One auxiliary power outlet
is located at the rear of the
center floor console, for rear
seat passengers to use.
The other auxiliary power
outlet is located in the rear
cargo area on the
passenger's side.