2000 GMC YUKON ECU

1-8 Head Restraints
Slide the head restraint up or down so that the top of the
restraint is closest to the top of your ears. This position
reduces the chance of a neck injury in a crash.
Rear Seats
CAUTION:
If a head restraint is not installed on the seatback
or stored in the vehicle properly, it could be
thrown about the vehicle in a crash or sudden
maneuver. People in the vehicle could be injured.
Remove the head restraints only when you need
to fold the seat, and be sure that the head
restraints are stored securely in the space
provided on the folded up seat cushion. When the
seat is returned to the passenger position, be sure
the head restraints are installed properly.
Utility: The rear seat may have a 60/40 split seat which
may be folded down to give you more cargo space. 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 allow
a flat load floor for cargo or entry to the third row seat
(if equipped).
Suburban/Yukon XL: The second row rear seat of
Suburban/Yukon XL models may have a 60/40 split seat
or rear bucket seats. Either side of the rear seat may be
folded down to give you more cargo space.
On Suburban/Yukon XL models with rear bucket seats,
the head restraints need to be removed in order to fold
the rear seat. To do this, lift the head restraints up until
they stop. Press in the button on the side of the head
restraint guide cap and lift up on the head restraint.
This will need to be repeated on the other cap. The
head restraint can be removed and stored in the space
provided on the folded up seat cushion.

1-10
To create a load floor, release the panels from the
seatback by pushing forward on the latch. Then fold
the panels back to cover the rear seat footwell area.
To return the seat to the passenger position on a
Suburban/Yukon XL, lift the floor load panels and latch
them into the seatback. Lift the seatback up and push
rearward all the way. Then lower the seat cushion until it
latches into position.Pull forward on the seatback and up on the seat cushion
to make sure the seat is securely in place.
Check to see that the buckles on the driver's side
seatback are accessible to the outboard and center
occupant and are not under the seat cushions.
If you have removed the head restraints to fold the rear
bucket seat, be sure to reinstall them on the seatback
after it has been returned to the normal seating position.
Be sure to return the head restraints to the upright
position on Utility models.

1-12
If more cargo space is
desired, the third seat can
also be folded and tumbled
forward or removed if
necessary by pulling up on
the release lever labeled 2.
The seat locks into place and does not need to be removed
when carrying cargo. See ªRemoving the Third Row Seats º
for Utility later in this section for removal instructions.
Suburban/Yukon XL: The seatback of the third seat
(if equipped) in Suburban/Yukon XL models also folds
down to create more cargo space.
To fold the seatback down, pull up on the release lever,
labeled 1, located on the rear of the seatback, then push
the seatback forward.To return the seat to the passenger position, pull up on
the release lever and then pull up on the seatback until
it locks into the upright position. Push forward on the
seatback to make sure it is locked into position.
If still more cargo space is desired, the third seat can
also be folded and tumbled forward by using the lever,
labeled 2. To return the seats to their original position,
reverse the above steps.
Fold and Tilt Feature (Suburban/Yukon XL
Third Seat)
Once the third seatback has been folded down, the
entire seat can be tilted forward to create a flat load
floor. To do this, you will need to enter the rear cargo
area of the vehicle. Make sure the head restraints have
been lowered completely.
With the seat folded, unlatch the seat from the floor by
pulling up on the lever located under the carrying handle
at the rear of the seat labeled 2. Lift the rear of the seat
up, off of the floor. You will not be able to unlatch the
seat from the floor unless the seatback is folded down.
Tilt the seat fully forward and secure it in place using
the support rod located on the underside of the seat,
passenger side. Make sure the support rod pin is fully
engaged in the lock.

1-13
Push and pull on the seat, making sure that the support
rod is holding it firmly in place. Use the seat in this
position only when necessary for additional cargo space.
CAUTION:
If the support rod isn't properly engaged, the
folded third row seat could come loose in a
sudden stop or crash. That could cause injury to
people and damage to your vehicle. Always be
sure the support rod is properly engaged when
the third row seat is folded forward.
To return the seat to its seating position, push forward
on the seat and release the support lock rod. Secure the
support rod in its stored position on the underside of the
seat. Lower the seat to the floor and let the seat drop into
place. Lift up on the carrying handle to make sure the
seat is locked in place.
Return the seatback to the upright position by pulling
up on the release lever labeled 1 before the back can be
folded upright. Pull the seatback forward to make sure it
is locked into place.Removing the Third Row Seats
Utility: If your vehicle has third row seating, it can be
taken out for more cargo space.
To remove the seat, fully open the rear doors and enter
the rear of the vehicle.
Fold the seatback forward
into the seat cushion by
using the lever labeled 1.
The seat cannot be
removed unless the
seatback is folded.

1-15
Suburban/Yukon XL: To put the seat back in,
place the front of the seat on the load floor, facing the
front of the vehicle. While holding the rear of the seat
up use the wheels on the front of the seat to roll it
towards the seat hooks in the floor. When the latches
are engaged in the hooks, let the seat drop into place.
Lift up on the carrying handle to make sure the seat is
locked in place.
Raise the seatback into the upright position. 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 floor.
CAUTION:
A seat that isn't 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.
Safety Belts: They're 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.
And it explains the air bag system.
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. 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.

1-22
Pull up on the latch plate to make sure it is secure.
If the belt isn't long enough, see ªSafety Belt
Extenderº at the end of this section.
Make sure the release button on the buckle is
positioned so you would be able to unbuckle the
safety belt quickly if you ever had to.
5. To make the lap part tight, pull down on the buckle
end of the belt as you pull up on the shoulder belt.
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'd be
less likely to slide under the lap belt. If you slid under it,
the belt would apply force at 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 safety belt locks if there's a sudden stop or a crash.

1-30
CAUTION:
Anyone who is up against, or very close to, any
air bag when it inflates can be seriously injured
or killed. Air bags plus lap
-shoulder belts offer
the best protection for adults, but not for young
children and infants. Neither the vehicle's safety
belt system nor its air bag system is designed
for them. Young children and infants need the
protection that a child restraint system can
provide. Always secure children properly in
your vehicle. To read how, see the part of this
manual called ªChildren.º
There is an air bag readiness
light on the instrument
panel, which shows the
air bag symbol.
The system checks the air bag electrical system for
malfunctions. The light tells you if there is an electrical
problem. See ªAir Bag Readiness Lightº in the Index
for more information.

1-39
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.
2. Push the latch plate into the buckle until it clicks.
Pull up on the latch plate to make sure it is secure.When the shoulder belt is pulled out all the way, it will
lock. If it does, let it go back all the way and start again.
If the belt is not long enough, see ªSafety Belt
Extenderº at the end of this section.
Make sure the release button on the buckle is
positioned so you would be able to unbuckle the
safety belt quickly if you ever had to.
3. To make the lap part tight, pull down on the buckle
end of the belt as you pull up on the shoulder part.