lock GMC YUKON DENALI 2008 User Guide

2. From the front seats,
press one of the
automatic seat release
buttons located on
the overhead console.
When accessing the third row seats, if your vehicle
has them, from the outside of the vehicle, press
the button on the panel behind either rear door.
One press of the button automatically folds
the seatback at and tumbles the seat forward.
There will be a slight delay between the folding of
the seatback and the tumbling of the seat.Returning the Seat(s) to the Sitting
Position
To return the seat to the sitting position, do the following:
1. Pull the seat down until it latches to the oor. The
seatback cannot be raised if the seat is not latched
to the oor.
{CAUTION:
If the seatback is not locked, it could move
forward in a sudden stop or crash. That could
cause injury to the person sitting there. Always
push and pull on the seatback to be sure it is
locked.
2. Lift the seatback and push it rearward. Push and
pull on the seatback to make sure it is locked. Overhead Console
Buttons shown
1-21

Folding and Tumbling the Second Row
Seat(s) from the Third Row Seats or
Outside
{CAUTION:
Using the third row seating position while the
second row is folded, or folded and tumbled,
could cause injury in a sudden stop or crash.
Be sure to return the seat to the passenger
seating position. Push and pull on the seat to
make sure it is locked into place.
To fold and tumble the seat from the third row seats, if
your vehicle has them, do the following:
1. Make sure that there is nothing under, in front of, or
on the seat.
Notice:Folding a rear seat with the safety belts
still fastened may cause damage to the seat or the
safety belts. Always unbuckle the safety belts
and return them to their normal stowed position
before folding a rear seat.2. Press the automatic
seat release button
located on the panel
behind the rear doors.
One press of the button automatically folds the
seatback at and tumbles the seat forward. There
will be a slight delay between the folding of the
seatback and the tumbling of the seat. Driver’s Side Rear Panel
Button shown
1-22

Unfolding the Seatback(s)
To return the seatback to the upright position, do the
following:
1. Open the liftgate to access the controls for the seat.
2. Pull up on the seatback until it locks into the
upright position.
{CAUTION:
If the seatback is not locked, it could move
forward in a sudden stop or crash. That could
cause injury to the person sitting there. Always
push and pull on the seatback to be sure it is
locked.
3. Push and pull on the seatback to make sure it is
locked.
Tumbling the Third Row Seat
The seat can be tumbled forward for additional cargo
space.
To tumble the seat, do the following:
1. Open the liftgate to access the controls for the seat.
2. Make sure the head rests are completely lowered,
there is nothing under, in front of, or on the seat,
and all items are removed from the cupholder
and storage bin, if the seat is a two-passenger seat.
3. Fold the seatbacks forward using the instructions
previously listed under “Folding the Seatbacks”.
You will not be able to unlatch the seat from
the oor unless the seatback is folded down.
1-24

4. Unlatch the seat from
the oor by lifting the
lever located next
to the carrying handle
on the rear of the
seat near the bottom.
5. Lift the rear of the seat up from the oor.
6. Tilt the seat fully forward to lock it into place.
7. Push and pull on the seat to make sure it is locked.
Put the seat in this position only when necessary for
additional cargo space.
Returning the Third Row Seat from a
Tumbled Position
To return the seat to the normal seating position, do the
following:
1. Open the liftgate to access the controls for the seat.
2. Make sure there is nothing that could become
trapped under the seat.3. Release the seat from the tumbled position by lifting
the lever located next to the carrying handle at the
bottom rear of the seat.
4. Pull the seat down until it latches to the oor. The
seatback cannot be raised if the seat is not latched
to the oor.
5. Pull up on the seatback until it locks into the upright
position.
{CAUTION:
If the seatback is not locked, it could move
forward in a sudden stop or crash. That could
cause injury to the person sitting there. Always
push and pull on the seatback to be sure it is
locked.
6. Push and pull on the seatback to make sure it is
locked.
1-25

Removing the Third Row Seat
To remove the seat, do the following:
1. Open the liftgate to access the controls for the seat.
2. Fold the seatback forward using the instructions
listed under “Folding the Seatbacks” previously.
The seat cannot be removed unless the seatback is
folded.
3. Unlatch the seat from
the oor by pulling the
carrying handle,
located at the rear of
the seat, rearward.
4. Roll the seat out of the vehicle. There is a track in
the oor to guide the seat wheels out of the vehicle.
Installing the Third Row Seat
To install the seat, do the following:
1. Open the liftgate to access the rear of the vehicle.
2. Slide the front outboard seat wheels into the
track on the oor and roll the seat forward. The front
latches should lock into place. If the latches do
not lock, try tilting the rear of the seat upward
slightly.
3. Lower the rear of the seat and push down on the
seat to engage the rear oor latches.
{CAUTION:
A seat that is not locked into place properly
can move around in a collision or sudden stop.
People in the vehicle could be injured. Be sure
to lock the seat into place properly when
installing it.
1-26

4. Push and pull on the seat to make sure it is locked
into place. The seatback cannot be raised to the
upright position unless the seat is secured to
the oor.
5. Pull up on the seatback until it locks into the upright
position.
{CAUTION:
If the seatback is not locked, it could move
forward in a sudden stop or crash. That could
cause injury to the person sitting there. Always
push and pull on the seatback to be sure it is
locked.
6. Push and pull on the seatback to make sure it is
locked.
{CAUTION:
A safety belt that is improperly routed, not
properly attached, or twisted will not 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.
7. Make sure the safety belts are returned to the
original position over the seatbacks.
1-27

How to Wear Safety Belts Properly
This section is only for people of adult size.
Be aware that there are special things to know about
safety belts and children. And there are different
rules for smaller children and babies. If a child will be
riding in your vehicle, seeOlder Children on page 1-49
orInfants and Young Children on page 1-52. Follow
those rules for everyone’s protection.
It is very important for all occupants to buckle up.
Statistics show that unbelted people are hurt more often
in crashes than those who are wearing safety belts.
Occupants who are not buckled up can be thrown out of
the vehicle in a crash. And they can strike others in
the vehicle who are wearing safety belts.
First, before you or your passenger(s) wear a safety
belt, there is important information you should know.
Sit up straight and always keep your feet on the oor in
front of you. The lap part of the belt should be worn low
and snug on the hips, just touching the thighs. In a crash,
this applies force to the strong pelvic bones and you
would be less likely to slide under the lap belt. If you slid
under it, the belt would apply force on your abdomen.
This could cause serious or even fatal injuries. The
shoulder belt should go over the shoulder and across the
chest. These parts of the body are best able to take belt
restraining forces.
The shoulder belt locks if there is a sudden stop or crash.
1-33

Lap-Shoulder Belt
All seating positions in your vehicle have a lap-shoulder
except for the center front passenger position, if your
vehicle has one, which has a lap belt. SeeLap Belt on
page 1-47for more information.
Here is how to wear a lap-shoulder belt properly.
1. Adjust the seat, if the seat is adjustable, so you can
sit up straight. To see how, see “Seats” in the Index.
2. Pick up the latch plate and pull the belt across you.
Do not let it get twisted.
The lap-shoulder belt may lock if you pull the belt
across you very quickly. If this happens, let the belt
go back slightly to unlock it. Then pull the belt
across you more slowly.
If you ever pull the shoulder portion of a passenger
belt out all the way, you may engage the child
restraint locking feature. If this happens, just let the
belt go back all the way and start again.
Engaging the child restraint locking feature may
affect the passenger sensing system. See
Passenger Sensing System on page 1-85.3. Push the latch plate into the buckle until it clicks. If
you nd that the latch plate will not go fully into the
buckle, see if you are using the correct buckle.
Pull up on the latch plate to make sure it is secure.
If the belt is not long enough, seeSafety Belt
Extender on page 1-48.
Make sure the release button on the buckle is
positioned so you would be able to unbuckle the
safety belt quickly if necessary.
1-41

Shoulder Belt Height Adjuster
Your vehicle has a shoulder belt height adjuster for the
driver and right front passenger position.
Adjust the height so that the shoulder portion of the belt is
centered on your shoulder. The belt should be away from
your face and neck, but not falling off your shoulder.
Improper shoulder belt height adjustment could reduce
the effectiveness of the safety belt in a crash.
To move it down, squeeze
the buttons (A) on the sides
of the height adjuster and
move the height adjuster to
the desired position.
You can move the adjuster up just by pushing up on the
shoulder belt guide.
After you move the adjuster to where you want it, try to
move it down without squeezing the buttons to make
sure it has locked into position.
Safety Belt Pretensioners
Your vehicle has safety belt pretensioners for front
outboard occupants. Although you cannot see them,
they are part of the safety belt assembly. They can help
tighten the safety belts during the early stages of a
moderate to severe frontal, near frontal, or rear crash if
the threshold conditions for pretensioner activation
are met. And, if your vehicle has side impact airbags,
safety belt pretensioners can help tighten the safety
belts in a side crash or a rollover event.
Pretensioners work only once. If they activate in a
crash, you will need to get new ones, and probably other
new parts for your safety belt system. SeeReplacing
Restraint System Parts After a Crash on page 1-93.
1-43

{CAUTION:
Children can be seriously injured or strangled
if a shoulder belt is wrapped around their neck
and the safety belt continues to tighten.
Secure any unused safety belts behind the
child restraint so children cannot reach them.
Pull the shoulder belt all the way out of the
retractor to set the lock, if your vehicle has
one, after the child restraint has been installed.
Be sure to follow the instructions of the child
restraint manufacturer.
Notice:Contact between the child restraint LATCH
attachment parts and the vehicle’s safety belt
assembly may cause damage to these parts. Make
sure when securing unused safety belts behind
the child restraint that there is no contact between
the child restraint LATCH attachment parts and
the vehicle’s safety belt assembly.
Folding an empty rear seat with the safety belts
secured may cause damage to the safety belt or the
seat. When removing the child restraint, always
remember to return the safety belts to their normal,
stowed position before folding the rear seat.1. Attach and tighten the lower attachments to the
lower anchors. If the child restraint does not have
lower attachments or the desired seating position
does not have lower anchors, secure the child
restraint with the top tether and the safety belts.
Refer to your child restraint manufacturer
instructions and the instructions in this manual.
1.1. Find the lower anchors for the desired
seating position.
1.2. Put the child restraint on the seat.
1.3. Attach and tighten the lower attachments on
the child restraint to the lower anchors.
2. If the child restraint manufacturer recommends that
the top tether be attached, attach and tighten the
top tether to the top tether anchor, if the vehicle has
one. Refer to the child restraint instructions and
the following steps:
2.1. Find the top tether anchor.
2.2. Route, attach and tighten the top tether
according to your child restraint instructions
and the following instructions:
1-66