1999 GMC SUBURBAN lock

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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.

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To unlatch the seat from the
back of the floor, pull up on
the release lever labeled 2
at the rear of the seat and
lift the rear of the seat up
from the floor.
Pull on the release lever located in the lower middle to
unlatch the seat from the front of the floor and pull the
seat out. Use one hand on the release lever and the other
on the handle to pull the seat out.
Suburban/Yukon XL: 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.
To unlatch the seat from the floor, pull up on the release
lever labeled 2 at the rear of the seat and lift the rear of
the seat up, off of the floor.
Pull on the strap at the rear of the seat to release the
front seat latches. Then, pull the seat straight back,
towards the rear of the vehicle and remove it. There are
wheels at the front of the seat to assist you.
Replacing the Rear Seat (Third Row Seats)
Utility: To put the seat back in, place the front of
the seat on the load floor facing towards the front of
the vehicle. Slide the wheels into the slots on the floor
and lock into place using the hooks there. Once the
latches are engaged pull on lever 3 to let the seat drop
into place. Release the lever labeled 1 to return the seat
to its upright position. Push and pull on the seat to make
sure it is locked into place.

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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.

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How to Wear Safety Belts Properly
Adults
This part 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, see the part of this manual called
ªChildren.º Follow those rules for everyone's protection.
First, you'll want to know which restraint systems your
vehicle has.
We'll start with the driver position.
Driver Position
This part describes the driver's restraint system.
Lap-Shoulder Belt
The driver has a lap-shoulder belt. Here's how to
wear it properly.
1. Close and lock the door.
2. Adjust the seat (to see how, see ªSeatsº in the Index)
so you can sit up straight.
3. Pick up the latch plate and pull the belt across you.
Don't let it get twisted.
The 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.
4. Push the latch plate into the buckle until it clicks.

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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.

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The best way to protect the fetus is to protect the
mother. When a safety belt is worn properly, it's more
likely that the fetus won't be hurt in a crash. For
pregnant women, as for anyone, the key to making
safety belts effective is wearing them properly.
Right Front Passenger Position
To learn how to wear the right front passenger's safety belt
properly, see ªDriver Positionº earlier in this section.
The right front passenger's safety belt works the same
way as the driver's safety belt
-- except for one thing.
If you ever pull the shoulder portion of the belt out
all the way, you will engage the child restraint locking
feature. If this happens, just let the belt go back all the
way and start again.
Air Bag Systems
This part explains the frontal and side impact air
bag systems.
Your vehicle has four air bags
-- a frontal air bag for
the driver, another frontal air bag for the right front
passenger, a side impact air bag for the driver, and
another side impact air bag for the right front passenger.Frontal air bags are designed to help reduce the risk
of injury from the force of an inflating frontal air bag.
But these air bags must inflate very quickly to do their
job and comply with federal regulations.
Here are the most important things to know about the
air bag systems:
CAUTION:
You can be severely injured or killed in a crash if
you aren't wearing your safety belt
-- even if you
have air bags. Wearing your safety belt during a
crash helps reduce your chance of hitting things
inside the vehicle or being ejected from it. Air
bags are ªsupplemental restraintsº to the safety
belts. All air bags are designed to work with
safety belts but don't replace them.
CAUTION: (Continued)

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The right front passenger's side impact air bag is in the
side of the passenger's seatback closest to the door.
CAUTION:
If something is between an occupant and an
air bag, the bag might not inflate properly or
it might force the object into that person. The
path of an inflating air bag must be kept clear.
Don't put anything between an occupant and an
air bag, and don't attach or put anything on the
steering wheel hub or on or near any other air
bag covering and don't let seat covers block the
inflation path of a side impact air bag.

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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.