2003 GMC YUKON DENALI Owners Manual

Section 1 Seats and Restraint Svstems
Air Bag Systems ............................................ 1.72
Where Are the Air Bags?
............................... 1-74
What Makes an Air Bag Inflate?
..................... 1-78
How Does an Air Bag Restrain? ..................... 1-78
Passenger Sensing System
............................ 1-81
When Should
an Air Bag Inflate?
.................... 1-77
What Will You See After an Air Bag Inflates?
....... 1-79 Servicing
Your Air Bag-Equipped Vehicle
......... 1.85
Adding Equipment
to Your Air Bag-Equipped
Vehicle .................................................... 1.85
Restraint System Check ................................. .l -86
Checking Your Restraint Systems ......... . .l -86
Replacing Restraint System Parts
After a Crash
............................................ 1-87
1
-2

Front Seats
Power Seats
Horizontal Control: You can adjust your vehicle’s front
seats with the horizontal control located on the
outboard edge of each front seat.
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.
1 -3

Power Lumbar
Heated Seats
You can increase or
decrease lumbar support in an area of the lower
seatback.
To increase support, press and hold the front of the
control.
To decrease support, press and hold the 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 support, press and hold the top of the
control. To decrease support, press and hold the bottom
of the control. Let go of the control when the lower
seatback reaches the desired level
of support.
-1 control this feature are
The
buttons used
to
located on the front doors.
The engine must be
running for the heated seat
feature
to work.
To heat the entire seat, press the horizontal button with
the heated seat symbol. Press the button
to cycle
through the temperature settings
of high, medium and
low and
to turn the heated seat off. Indicator lights
will glow
to designate the level of heat selected, three
for high, two for medium, and one for low.
The low setting warms the seatback and cushion until
the seat temperature is near body temperature. The
medium and high settings heat the seatback and seat
cushion
to a slightly higher temperature. You will be able
to feel heat in about two minutes.
1 -4

To heat only the seatback, press the vertical button with
the heated seatback symbol. An indicator light on the
seatback button will glow
to designate that only the
seatback is being heated. Additional presses of
the seatback button will cycle through the heat levels
for
the seatback only. Press the horizontal button again
to heat the whole seat.
The heated front seats will shut
off automatically when
the ignition is turned
off.
Your vehicle also has rear heated seats. See Heated
Seats
on page 1-8.
Reclining Seatbacks
The vertical power seat control described earlier allows
the seatback
to recline.
But don’t have a seatback reclined
if your vehicle is
moving. Sitting
in a
re nec losition when your ve :le
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.
1-5

Head Restraints I-he head restraints tilt forward and rearward also.
To adjust the tilt for either of the front head restraints,
pull it toward you until you hear a click. There are
four positions available: initial position, first click, second
click and third click. Each position will click into place.
After the third position (three clicks) is reached,
pulling the head restraint farther will release it back
to
the upright position.
Pull firmly on the top of the head restraint to position it
to your liking.
The rear seat head restraints in your vehicle are
adjustable. Slide an adjustable head restraint up or
down
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.
On some models, the head restraints tilt forward and
rearward also.
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
Entering or Exiting the Third Row
Seats
Yukon Qenali: To enter or exit the third row seat you
must fold the second row seat down following the
instructions later in this section. See “Folding the
Seatback” under
60/40 Split Bench Seat on page 7-9.
If you are exiting the third row seat with no assistance
do the following: Be sure
to return the seat to the passenger position
when finished.
Pull forward and push rearward on the
seat to make sure it is locked in place.
Yukon XL Denali: The passenger’s side of the second
row
60/40 or rear bucket seat has an easy entry/exit
feature. This makes it easy
to get in and out of the third
row seat.
To operate the easy entry seat, do the following:
2. Next, push the seatback forward until it is flat
with the floor.
1. Lift the release lever on the back of the seat.
2. Tilt the seatback toward the front of the vehicle and
the seat will release.
1 -i

3. Pull (push if you are exiting the third row with no
assistance) the seat forward until it stops.
If the seatback isn’t locked,
it could move
forward in a sudden stop or crash. That could
cause injury to the person sitting there. Always
press rearward on the seatback to be sure
it is
locked.
Heated Seats
A safety belt that is improperly routed, not
properly attached, or twisted won’t provide the protection needed
in a crash. The person
wearing the belt could be seriously injured.
After raising the rear seatback, always check
to be sure that the safety belts are properly routed and attached, and are not twisted. The
buttons used to
control this feature are
located on the back of the
center console. The
engine must be running for
the heated seat feature
To heat the seat, press the button to cycle through the
temperature settings of high and low. Press the
button a third time to turn the seats
off. An Indicator
light will glow for each heat setting when the seats are
operating.
The heated rear seats will shut
off automatically when
the ignition is turned
off.
Be sure to return the seat to the passenger position
when finished. Pull forward and push rearward on the
seat to make sure it is locked in place.
1 -8

60/40 Split Bench Seat
If your vehicle has a 60/40 split bench, the seats can be
folded to give you more cargo space.
Folding the Seatbacks (60/40 Split
Bench Seat)
The rear seat may have a 60/40 split seat which may be
folded down to create a load floor and give you more
cargo space. On the Yukon Denali, the rear seatbacks
are equipped with rearward folding head restraints.
When the seatback is being folded down, the head
restraint will automatically fold rearward.
To fold the rear seat, do the following:
1. Make sure that nothing is under or in front
or 'L- seat.
2. Pull up on the strap
loop located at the rear
of the seat cushion
and pull the seat
cushion up. Then fold it
forward.
1 -9