2006 GMC YUKON ECU

Front Seats......................................................1-3
Manual Seats................................................1-3
Power Seats..................................................1-4
Power Lumbar...............................................1-4
Heated Seats.................................................1-5
Reclining Seatbacks........................................1-6
Head Restraints.............................................1-7
Rear Seats.......................................................1-8
Rear Seat Operation.......................................1-8
60/40 Split Bench Seat
(Second Row)...........................................1-10
50/50 Split Bench Seat
(Third Row)..............................................1-13
Bench Seat (Third Row)................................1-18
Bucket Seats (Second Row)...........................1-23
Safety Belts...................................................1-26
Safety Belts: They Are for Everyone................1-26
Questions and Answers About Safety Belts......1-31
How to Wear Safety Belts Properly.................1-32
Driver Position..............................................1-32
Safety Belt Use During Pregnancy..................1-39Right Front Passenger Position.......................1-40
Center Passenger Position.............................1-40
Rear Outside Passenger Positions..................1-42
Rear Safety Belt Comfort Guides....................1-44
Safety Belt Extender.....................................1-46
Child Restraints.............................................1-47
Older Children..............................................1-47
Infants and Young Children............................1-50
Child Restraint Systems.................................1-53
Where to Put the Restraint.............................1-57
Lower Anchors and Tethers for
Children (LATCH)......................................1-58
Securing a Child Restraint in a
Rear Outside Seat Position.........................1-66
Securing a Child Restraint in the Center
Rear Seat Position....................................1-68
Securing a Child Restraint in the Center
Front Seat Position....................................1-70
Securing a Child Restraint in the Right
Front Seat Position....................................1-70
Section 1 Seats and Restraint Systems
1-1

Installing the 50/50 Split Bench Seat(s)
{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.
To install the seat, do the following:
1. Open the liftgate to access the rear of the vehicle.
2. While holding the rear of the seat up, slide the
front wheels into the slots on the oor. The front
latches should lock into place. If the latches do not
lock, try tilting the rear of the seat upward.
3. Once the latches are engaged, let the seat drop
into place.
{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.
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 release lever labeled 1, located on
the rear of the seatback. Then 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.
1-17

Installing the Bench Seat
{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.
To install the seat, do the following:
1. Open the liftgate to access the rear of the vehicle.
2. While holding the rear of the seat up, slide the
front wheels into the slots on the oor. The front
latches should lock into place. If the latches do not
lock, try tilting the rear of the seat upward.
3. Once the latches are engaged, let the seat drop
into place.
{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.
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. Release the lever labeled 1, located on the rear of
the seat, and pull the seatback up to return it to 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.
1-22

How to Wear Safety Belts Properly
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, seeOlder Children on page 1-47
orInfants and Young Children on page 1-50. Follow
those rules for everyone’s protection.
First, you will want to know which restraint systems
your vehicle has.
We will start with the driver position.
Driver Position
Lap-Shoulder Belt
The driver has a lap-shoulder belt. Here is how to
wear it properly.
1. Close and lock the door.
2. Adjust the seat so you can sit up straight.
To see how, see “Seats” in the Index.3. Pick up the latch plate and pull the belt across you.
Do not 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.
Pull up on the latch plate to make sure it is secure.
If the belt is not long enough, seeSafety Belt
Extender on page 1-46.
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.
1-32

Rear Outside Passenger Positions
It is very important for rear seat passengers to
buckle up! Accident statistics show that unbelted people
in the rear seat are hurt more often in crashes than
those who are wearing safety belts.
Rear passengers who are not safety belted can be
thrown out of the vehicle in a crash. And they can strike
others in the vehicle who are wearing safety belts.
Lap-Shoulder Belt
The positions next to the windows have lap-shoulder
belts. Here is how to wear a lap-shoulder belt properly.
1. Pick up the latch plate and pull the belt across you.
Do not 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.
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.
1-42

{CAUTION:
A safety belt that is not properly worn may not
provide the protection needed in a crash. The
person wearing the belt could be seriously
injured. 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.4. Buckle, position, and release the safety belt as
described inRear Outside Passenger Positions
on page 1-42. Make sure that the shoulder
belt crosses the shoulder.
To remove and store the comfort guides, squeeze
the belt edges together so that you can take them out
of the guides. Make sure you remove the comfort guide
from the belt before you fold a rear seat down or use
an easy-entry seat, if your vehicle has one.
Safety Belt Extender
If the vehicle’s safety belt will fasten around you,
you should use it.
But if a safety belt is not long enough, your dealer
will order you an extender. It is free. When you go in
to order it, take the heaviest coat you will wear, so the
extender will be long enough for you. To help avoid
personal injury, do not let someone else use it, and use
it only for the seat it is made to t. The extender has
been designed for adults. Never use it for securing
child seats. To wear it, just attach it to the regular safety
belt. For more information, see the instruction sheet
that comes with the extender.
1-46

Infants and Young Children
Everyone in a vehicle needs protection! This includes
infants and all other children. Neither the distance
traveled nor the age and size of the traveler changes
the need, for everyone, to use safety restraints. In
fact, the law in every state in the United States and in
every Canadian province says children up to some
age must be restrained while in a vehicle.
Every time infants and young children ride in vehicles,
they should have the protection provided by appropriate
restraints. Young children should not use the vehicle’s
adult safety belts alone, unless there is no other choice.
Instead, they need to use a child restraint.
{CAUTION:
People should never hold a baby in their arms
while riding in a vehicle. A baby does not weigh
much — until a crash. During a crash a baby will
become so heavy it is not possible to hold it.
For example, in a crash at only 25 mph (40 km/h),
a 12 lb (5.5 kg) baby will suddenly become a
240 lb (110 kg) force on a person’s arms. A baby
should be secured in an appropriate restraint.
1-50

For most basic types of child restraints, there are
many different models available. When purchasing
a child restraint, be sure it is designed to be
used in a motor vehicle. If it is, the restraint will
have a label saying that it meets federal motor
vehicle safety standards.
The restraint manufacturer’s instructions that come
with the restraint, state the weight and height
limitations for a particular child restraint. In addition,
there are many kinds of restraints available for
children with special needs.
{CAUTION:
Newborn infants need complete support,
including support for the head and neck. This is
necessary because a newborn infant’s neck is
weak and its head weighs so much compared
with the rest of its body. In a crash, an infant in
a rear-facing seat settles into the restraint, so
the crash forces can be distributed across the
strongest part of an infant’s body, the back and
shoulders. Infants always should be secured
in appropriate infant restraints.
{CAUTION:
The body structure of a young child is quite
unlike that of an adult or older child, for whom
the safety belts are designed. A young child’s
hip bones are still so small that the vehicle’s
regular safety belt may not remain low on the
hip bones, as it should. Instead, it may settle
up around the child’s abdomen. In a crash,
the belt would apply force on a body area that
is unprotected by any bony structure. This
alone could cause serious or fatal injuries.
Young children always should be secured in
appropriate child restraints.
1-52