2004 GMC SIERRA DENALI belt

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-3
Rear Seats
............................................... 1-8
Safety Belts
.............................................. 1-8
Child Restraints
.......................................1-29
Air Bag Systems
......................................1-62
Restraint System Check
............................1-79
Features and Controls..................................... 2-1
Keys
........................................................ 2-2
Doors and Locks
....................................... 2-6
Windows
.................................................2-13
Theft-Deterrent Systems
............................2-15
Starting and Operating Your Vehicle
...........2-18
Mirrors
....................................................2-31
OnStar
žSystem
......................................2-36
HomeLinkžTransmitter
.............................2-38
Storage Areas
.........................................2-42
Vehicle Personalization
.............................2-45
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-2
Climate Controls
......................................3-19
Warning Lights, Gages and Indicators
.........3-27
Driver Information Center (DIC)
..................3-46
Audio System(s)
.......................................3-64Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-48
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-4
Checking Things Under the Hood
................. 5-8
All-Wheel Drive
........................................5-46
Rear Axle
...............................................5-47
Front Axle
...............................................5-48
Bulb Replacement
....................................5-49
Windshield Wiper Blade Replacement
.........5-58
Tires
......................................................5-59
Appearance Care
.....................................5-96
Vehicle Identi®cation
...............................5-104
Electrical System
....................................5-105
Capacities and Speci®cations
...................5-114
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance and Information.............. 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-10
Index................................................................ 1
2004 GMC Sierra Denali Owner ManualM

Front Seats......................................................1-3
Power Seats..................................................1-3
Power Lumbar...............................................1-4
Heated Seats.................................................1-4
Reclining Seatbacks........................................1-5
Head Restraints.............................................1-7
Rear Seats.......................................................1-8
Rear Seat Operation.......................................1-8
Safety Belts.....................................................1-8
Safety Belts: They Are for Everyone.................1-8
Questions and Answers About Safety Belts......1-13
How to Wear Safety Belts Properly.................1-14
Driver Position..............................................1-14
Safety Belt Use During Pregnancy..................1-21
Right Front Passenger Position.......................1-22
Center Passenger Position.............................1-22
Rear Seat Passengers..................................1-24
Rear Safety Belt Comfort Guides for Children
and Small Adults.......................................1-27
Safety Belt Extender.....................................1-29Child Restraints.............................................1-29
Older Children..............................................1-29
Infants and Young Children............................1-32
Child Restraint Systems.................................1-36
Where to Put the Restraint.............................1-39
Top Strap....................................................1-40
Top Strap Anchor Location.............................1-42
Lower Anchorages and Top Tethers for
Children (LATCH System)...........................1-44
Securing a Child Restraint Designed for the
LATCH System (Rear)...............................1-46
Securing a Child Restraint Designed for the
LATCH System (Front)...............................1-46
Securing a Child Restraint in a Rear Outside
Seat Position............................................1-51
Securing a Child Restraint in a Center Rear
Seat Position............................................1-54
Securing a Child Restraint in the Right Front
Seat Position............................................1-56
Section 1 Seats and Restraint Systems
1-1

But don't have a seatback reclined if your vehicle is
moving.
{CAUTION:
Sitting in a reclined position when your vehicle
is in motion can be dangerous. Even if you
buckle up, your safety belts can't do their job
when you're reclined like this.
The shoulder belt can't do its job. In a crash,
you could go into it, receiving neck or other
injuries.
The lap belt can't do its job either. In a crash
the belt could go up over your abdomen. The
belt forces would be there, not at your pelvic
bones. This could cause serious internal
injuries.
For proper protection when the vehicle is in
motion, have the seatback upright. Then sit
well back in the seat and wear your safety belt
properly.
1-6

Rear Seats
Rear Seat Operation
Folding the Rear Seat
The rear seat can be folded up to provide more cargo
space. To fold the seat do the following:
1. Pull forward on the
release strap located
under the rear seat
cushion.
2. Fold the seat cushion upward until it latches with
the seatback.
3. Push and pull on the seat to make sure the seat is
secure.The rear seat can be folded open for more seating
space. To use the seat do the following:
1. Push rearward on the seat cushion while pulling up
on the release strap under the seat cushion.
2. Pull the seat cushion downward until it latches.
3. After pulling the seat cushion down, pull up on it to
make sure it is locked.
Safety Belts
Safety Belts: They Are for Everyone
This part of the manual tells you how to use safety
belts properly. It also tells you some things you should
not do with safety belts.
{CAUTION:
Don't let anyone ride where he or she can't
wear a safety belt properly. If you are in a
crash and you're not wearing a safety belt,
your injuries can be much worse.
CAUTION: (Continued)
1-8

CAUTION: (Continued)
You can hit things inside the vehicle or be
ejected from it. You can be seriously injured or
killed. In the same crash, you might not be, if
you are buckled up. Always fasten your safety
belt, and check that your passengers' belts are
fastened properly too.
{CAUTION:
It is extremely dangerous to ride in a cargo
area, inside or outside of a vehicle. In a
collision, people riding in these areas are more
likely to be seriously injured or killed. Do not
allow people to ride in any area of your vehicle
that is not equipped with seats and safety
belts. Be sure everyone in your vehicle is in a
seat and using a safety belt properly.Your vehicle has a light
that comes on as a
reminder to buckle up. See
Safety Belt Reminder
Light on page 3-29.
In most states and in all Canadian provinces, the law
says to wear safety belts. Here's why:
They work.
You never know if you'll be in a crash. If you do have a
crash, you don't know if it will be a bad one.
A few crashes are mild, and some crashes can be so
serious that even buckled up, a person wouldn't survive.
But most crashes are in between. In many of them,
people who buckle up can survive and sometimes walk
away. Without belts they could have been badly hurt
or killed.
After more than 30 years of safety belts in vehicles, the
facts are clear. In most crashes buckling up does
matter... a lot!
1-9

Why Safety Belts Work
When you ride in or on anything, you go as fast as
it goes.
Take the simplest vehicle. Suppose it's just a seat on
wheels.Put someone on it.
1-10

or the instrument panel... or the safety belts!
With safety belts, you slow down as the vehicle does.
You get more time to stop. You stop over more distance,
and your strongest bones take the forces. That's why
safety belts make such good sense.
1-12

Questions and Answers About
Safety Belts
Q:Won't I be trapped in the vehicle after an
accident if I'm wearing a safety belt?
A:Youcouldbe ± whether you're wearing a safety
belt or not. But you can unbuckle a safety belt,
even if you're upside down. And your chance
of being conscious during and after an accident,
so you
canunbuckle and get out, ismuchgreater if
you are belted.
Q:If my vehicle has air bags, why should I have to
wear safety belts?
A:Air bags are in many vehicles today and will be in
most of them in the future. But they are
supplemental systems only; so they work
with
safety belts ± not instead of them. Every air bag
system ever offered for sale has required the
use of safety belts. Even if you're in a vehicle that
has air bags, you still have to buckle up to get
the most protection. That's true not only in frontal
collisions, but especially in side and other
collisions.
Q:If I'm a good driver, and I never drive far from
home, why should I wear safety belts?
A:You may be an excellent driver, but if you're in an
accident ± even one that isn't your fault ± you and
your passengers can be hurt. Being a good
driver doesn't protect you from things beyond your
control, such as bad drivers.
Most accidents occur within 25 miles (40 km) of
home. And the greatest number of serious injuries
and deaths occur at speeds of less than 40 mph
(65 km/h).
Safety belts are for everyone.
1-13