2003 GMC SIERRA DENALI Owners Manual

Front Seats
Power Seats
Raise or lower the front of the seat by raising or
lowering the forward edge of the control. Raise or lower
the rear of the seat by raising or lowering the rear
edge of the control.
Move the seat forward or rearward by moving the whole
control toward the front or toward the rear
of the
vehicle.
Moving the whole control up or down raises or lowers
the entire seat cushion.
Vertical Control: See
Reclining Seatbacks on
page
1-4.
Horizontal Control: You can adjust your vehicle’s front
seats with the horizontal control located on the
outboard edge
of each front seat.
1-2

Power Lumbar
, If your vehicle has this
’ feature, the four-way
control is located on the
To increase or decrease support, press and hold the
front or rear of the control. Let go of the control when the
lower seatback reaches the desired level
of support.
You can also reshape the side wing area of the
lower seatback for more lateral support. To increase or
decrease support, press and hold the top or bottom
of the control. Let go of the control when the lower
seatback reaches the desired level of support.
Heated Seats
1
If your vehicle has this
feature, the button used to
control the driver’s heated seat
is located on
the driver’s door panel.
The button used to control
the passenger’s heated
seat is located on the
passenger’s door panel.
To heat the entire seat, press the horizontal button.
Press the button to cycle through the temperature
settings of high, medium, and low. The indicator light
will glow to indicate the level of heat selected.
To heat only the seatback, press the vertical button with
the heated seatback symbol. An indicator light
on the
button will glow to designate that only the seatback
is being heated.
The engine must be running for them to operate.
The heated front seats will be canceled after the ignition
is turned
off. If you still want to use the heated front
seat feature after
you restart your vehicle, you will need
to press the heated seat button again.
1-3

Reclining Seatbacks
Your vehicles front seatbacks have a recline feature.
Vertical Control: You can use the vertical control to
adjust the angle of the seatback. Move the reclining front
seatback rearward or forward by moving the vertical
control toward the rear or toward the front
of the vehicle. But don’t
have a seatback reclined
if your vehicle is
moving.
1 -4

Sitting in a re ned 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.
CAUTION: (Continued) 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 -5

Head Restraints To raise the head restraint pull up on the head restraint.
To lower the head restraint, press the release button
while you push the head restraint down.
The head restraints tilt forward and rearward also.
To tilt the head restraint forward, grasp the top
of the
restraint and move it forward until you hear
a click. It will
then be locked into that position until you need to
move it again. Pulling it forward past the last position
will allow the restraint to return to the upright position.
Adjust your head restraint
so that the top of the restraint
is closest to the top of your head. This position
reduces the chance of a neck injury in a crash.
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:
2. Fold the seat cushion upward until it latches with
3. Push and pull on the seat to make sure the seat is
the seatback.
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.
1 -7

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.
.
Don’t let anyone ride __. ]ere 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. 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.
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.
1 -8

Your vehicle has a light
that comes on as
a
reminder to buckle up. See
Safety Belt Reminder
Light
on page 3-26.
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!
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
OP
wheels.
1-9