1999 GMC YUKON Owner's Manual

2-
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Section 2 Features and Controls
Here you can learn about the many standard and optional features on your vehicle, and information on starting,
shifting and braking. Also explained are the instrument panel and the warning systems that tell you if everything is
working properly
-- and what to do if you have a problem.
2
-2 Keys
2
-3 Door Locks
2
-6 Keyless Entry System
2
-11 Rear Doors
2
-13 Theft
2
-13 Theft-Deterrent System
2
-16 Feature Customization
2
-20 Passlock

2-20 New Vehicle ªBreak-Inº
2
-21 Ignition Positions
2
-22 Starting Your Engine
2
-24 Engine Coolant Heater (If Equipped)
2
-25 Automatic Transmission Operation
2
-28 Four-Wheel Drive
2
-32 Parking Brake
2
-33 Shifting Into Park (P)
2
-35 Shifting Out of Park (P)
2
-36 Parking Over Things That Burn
2
-36 Engine Exhaust2
-37 Running Your Engine While You're Parked
2
-38 Locking Rear Axle
2
-38 Windows
2
-39 Horn
2
-39 Tilt Wheel
2
-40 Multifunction Lever
2
-46 Exterior Lamps
2
-49 Interior Lamps
2
-51 Mirrors
2
-55 Storage Compartments
2
-61 Ashtrays and Cigarette Lighter
2
-63 Sun Visors
2
-63 Universal Transmitter
2
-67 Cellular Telephone (If Equipped)
2
-67 OnStar
System (If Equipped)
2
-68 Instrument Panel
2
-70 Instrument Panel Cluster
2
-72 Warning Lights, Gages and Indicators

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Keys
CAUTION:
Leaving children in a vehicle with the ignition
key is dangerous for many reasons. A child or
others could be badly injured or even killed.
They could operate power windows or other
controls or even make the vehicle move. Don't
leave the keys in a vehicle with children.

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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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2-4 Front Door Locks
There are several ways to lock and unlock your vehicle.
You can use the keyless entry system.
You can also use your key, but your vehicle has a
theft
-deterrent system. If it is armed, unlocking and
opening the door this way might set off the alarm. See
ªTheft
-Deterrent Systemº in the Index.
From the inside, to lock the
door, slide the lever down.
To unlock the door, slide the
lever up.
Power Door Locks
Press the side of the power
door lock switch marked
LOCK on either front door
to lock all the doors at once.
Press the ribbed side of the switch to unlock all the
doors at once. The power door locks will operate at any
time without the ignition being on.
The manual switch on each rear door works only
that door's lock. It won't lock (or unlock) all of the
doors
-- that's a safety feature.
Operating the power locks may affect the theft
-deterrent
system. See ªTheft
-Deterrent Systemº in the Index.

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On the passenger side of the
rear panel door or tailgate,
there is a power lock switch
which can be used to lock or
unlock all of the doors.
On vehicles with panel doors, if the power lock switch is
pressed with the panel doors open, all of the doors will
lock three seconds after the panel doors are closed. If the
panel doors are closed, the vehicle doors will lock when
a power door lock switch is pressed. The theft
-deterrent
system will not re
-arm after the panel doors are closed
unless the power lock switch is pressed first.
Child Security Locks
With this feature, you can
lock the rear side doors so
they can't be opened from
the inside by passengers.
Move the button up to engage the security feature.
Move the button down to return the door locks to
normal operation.
See ªFeature Customizationº in the Index for further
information on turning this feature on and off.

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2-6 Lockout Prevention
To protect you from locking your key in the vehicle, this
feature stops the power door locks from locking when
the keys are in the ignition and a door is open.
If the power lock switch is pressed when a door is
open and the key is in the ignition, none of the doors
will lock.
Leaving Your Vehicle
If you are leaving the vehicle, take your keys, open your
door and set the locks from inside. Then get out and
close the door. For information on how to set the door
locks, see ªTheft
-Deterrent Systemº and ªFeature
Customizationº in the Index.
Keyless Entry System
You can lock and unlock your doors, tailgate or panel
doors from about 3 feet (1 m) up to 30 feet (9 m) away
using the remote keyless entry transmitter supplied with
your vehicle.
Your keyless entry system operates on a radio frequency
subject to Federal Communications Commission (FCC)
Rules and with Industry Canada.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference,
and (2) this device must accept any interference
received, including interference that may cause
undesired operation.

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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.