2002 GMC YUKON DENALI window

1-48
CAUTION:
When an air bag inflates, there is dust in the air.
This dust could cause breathing problems for
people with a history of asthma or other
breathing trouble. To avoid this, everyone in the
vehicle should get out as soon as it is safe to do so.
If you have breathing problems but can't get out
of the vehicle after an air bag inflates, then get
fresh air by opening a window or a door.
In many crashes severe enough to inflate an air bag,
windshields are broken by vehicle deformation.
Additional windshield breakage may also occur from
the right front passenger air bag.

Air bags are designed to inflate only once. After an
air bag inflates, you'll need some new parts for your
air bag system. If you don't get them, the air bag
system won't be there to help protect you in another
crash. A new system will include air bag modules
and possibly other parts. The service manual for your
vehicle covers the need to replace other parts.
Your vehicle is equipped with a crash sensing and
diagnostic module, which records information about
the frontal air bag system. The module records
information about the readiness of the system, when
the system commands air bag inflation and driver's
safety belt usage at deployment. The module also
records speed, engine rpm, brake and throttle data.

Let only qualified technicians work on your air bag
systems. Improper service can mean that an air bag
system won't work properly. See your dealer for service.
NOTICE:
If you damage the covering for the driver's or
the right front passenger's air bag, or the air bag
covering on the driver's and right front
passenger's seatback, the bag may not work
properly. You may have to replace the air bag
module in the steering wheel, both the air bag
module and the instrument panel for the right
front passenger's air bag, or both the air bag
module and seatback for the driver's and right
front passenger's side impact air bag. Do not
open or break the air bag coverings.

1-50
Rear Seat Passengers
It's very important for rear seat passengers to buckle up!
Accident statistics show that unbelted people in the rear
seat are hurt more often in crashes than those who are
wearing safety belts.
Rear passengers who aren't safety belted can be thrown
out of the vehicle in a crash. And they can strike others
in the vehicle who are wearing safety belts.
Rear Seat Outside Passenger Positions
Lap-Shoulder Belt
The positions next to the windows have lap
-shoulder
belts. Here's how to wear one properly.
1. Pick up the latch plate and pull the belt across you.
Don't let it get twisted.

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A booster seat (F-G) is a child restraint designed
to improve the fit of the vehicle's safety belt system.
Some booster seats have a shoulder belt positioner,
and some high
-back booster seats have a five-point
harness. A booster seat can also help a child to see out
the window.
Q:How do child restraints work?
A:A child restraint system is any device designed for
use in a motor vehicle to restrain, seat, or position
children. A built
-in child restraint system is a
permanent part of the motor vehicle. An add
-on
child restraint system is a portable one, which is
purchased by the vehicle's owner.
For many years, add
-on child restraints have used
the adult belt system in the vehicle. To help reduce
the chance of injury, the child also has to be
secured within the restraint. The vehicle's belt
system secures the add
-on child restraint in the
vehicle, and the add
-on child restraint's harness
system holds the child in place within the restraint.
One system, the three
-point harness, has straps that
come down over each of the infant's shoulders and
buckle together at the crotch. The five
-point
harness system has two shoulder straps, two hip
straps and a crotch strap. A shield may take the
place of hip straps. A T
-shaped shield has shoulder
straps that are attached to a flat pad which rests low
against the child's body. A shelf
- or armrest-type
shield has straps that are attached to a wide,
shelf
-like shield that swings up or to the side.

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Older Children
Older children who have outgrown booster seats should
wear the vehicle's safety belts.
If you have the choice, a child should sit next to a
window so the child can wear a lap
-shoulder belt and
get the additional restraint a shoulder belt can provide.
Q:What is the proper way to wear safety belts?
A:If possible, an older child should wear a
lap
-shoulder belt and get the additional restraint a
shoulder belt can provide. The shoulder belt should
not cross the face or neck. The lap belt should fit
snugly below the hips, just touching the top of the
thighs. It should never be worn over the abdomen,
which could cause severe or even fatal internal
injuries in a crash.
Accident statistics show that children are safer if they
are restrained in the rear seat.
In a crash, children who are not buckled up can strike
other people who are buckled up, or can be thrown
out of the vehicle. Older children need to use safety
belts properly.

2-
2-1
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 Windows
2
-4 Keys
2
-6 Door Locks
2
-9 Keyless Entry System
2
-12 Liftgate/Liftgate Glass
2
-12 Theft
2
-14 Content Theft-Deterrent
2
-15 Passlock

2-16 New Vehicle ªBreak Inº
2
-16 Ignition Positions
2
-17 Starting Your Engine
2
-19 Engine Coolant Heater (If Equipped)
2
-20 Automatic Transmission Operation
2
-23 Parking Brake
2
-24 Shifting Into PARK (P)
2
-27 Shifting Out of PARK (P)
2
-27 Parking Over Things That Burn
2
-28 Engine Exhaust2
-28 Running Your Engine While You're Parked
2
-30 Locking Rear Axle
2
-30 All-Wheel Drive
2
-30 Tilt Wheel
2
-31 Turn Signal/Multifunction Lever
2
-37 Exterior Lamps
2
-41 Interior Lamps
2
-42 Mirrors
2
-46 Storage Compartments
2
-54 OnStar
System (If Equipped)
2
-57 Sunroof (If Equipped)
2
-58 HomeLink
Transmitter
2
-62 The Instrument Panel - Your
Information System
2
-64 Instrument Panel Cluster
2
-65 Warning Lights, Gages and Indicators
2
-77 Message Center
2
-83 Secondary Information Center (SIC)

2-2
Windows
CAUTION:
Leaving children in a vehicle with the windows
closed is dangerous. A child can be overcome by
the extreme heat and can suffer permanent
injuries or even death from heat stroke. Never
leave a child alone in a vehicle, especially with
the windows closed in warm or hot weather.

2-3 Power Windows
The switches to operate all of the power windows are
located on the driver's door armrest. The front
passenger's door and the rear side doors also each
have an individual power window switch.Your power windows will work when the ignition has
been turned to ACCESSORY or RUN or when Retained
Accessory Power (RAP) is active. See ªRetained
Accessory Powerº in the Index.
Press the rear or front of the switch with the power
window symbol on it to lower or raise the window.
Driver's Express
-Down Window
The driver's window has an express down feature that
allows the window to be lowered without holding the
switch. Press and hold the rear of the power window
switch for one second to activate the express down
mode. The express down mode can be canceled at any
time by pressing the opposite side of the switch. To open
the window partway, lightly tap the power window
switch until the window is at the desired position.
Window Lockout Switch
The driver's door power window switch has a lockout
feature. This feature prevents the passenger's windows
from operating except from the driver's position when
the driver's door button labeled WINDOW LOCK
is engaged.

2-4
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 the power windows or
other controls or even make the vehicle move.
Don't leave the keys in a vehicle with children.