GMC YUKON XL DENALI 2007 Service Manual

The person keeps going until stopped by
something. In a real vehicle, it could be the
windshield...or the instrument panel...
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or the safety belts!
With safety belts, you slow down as the vehicle
does. You get more time to stop. You stop
over more distance, and your strongest bones
take the forces. That is why safety belts
make such good sense.
Questions and Answers About
Safety Belts
Q:Will I be trapped in the vehicle after an
accident if I am wearing a safety belt?
A:Youcouldbe — whether you are wearing a
safety belt or not. But you can unbuckle a
safety belt, even if you are upside down. And
your chance of being conscious during and
after an accident, so youcanunbuckle and
get out, ismuchgreater if you are belted.
Q:If my vehicle has airbags, why should I
have to wear safety belts?
A:Airbags are in many vehicles today and will be
in most of them in the future. But they are
supplemental systems only; so they workwith
safety belts — not instead of them. Every
airbag system ever offered for sale has
required the use of safety belts. Even if you
are in a vehicle that has airbags, you still have
to buckle up to get the most protection.
That is true not only in frontal collisions, but
especially in side and other collisions.
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Q:If I am a good driver, and I never drive far
from home, why should I wear safety
belts?
A:You may be an excellent driver, but if you are
in an accident — even one that is not your
fault — you and your passengers can be hurt.
Being a good driver does not protect you
from things beyond your control, such as bad
drivers.
Most accidents occur within 25 miles (40 km)
of home. And the greatest number of
serious injuries and deaths occur at speeds of
less than 40 mph (65 km/h).
Safety belts are for everyone.
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, see
Older Children on page 61orInfants and Young
Children on page 64. 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.
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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, see
Safety Belt Extender on page 60.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. Move the shoulder belt height adjuster to the
height that is right for you. Improper shoulder
belt height adjustment could reduce the
effectiveness of the safety belt in a crash. See
Shoulder Belt Height Adjustment on page 50.
6. To make the lap part tight, pull up on the
shoulder belt.
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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 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 is a sudden stop or
crash, or if you pull the belt very quickly out of the
retractor.
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Q:What is wrong with this?
A:The shoulder belt is too loose. It will not give
nearly as much protection this way.
{CAUTION:
You can be seriously hurt if your shoulder
belt is too loose. In a crash, you would
move forward too much, which could
increase injury. The shoulder belt should
t against your body.
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Q:What is wrong with this?
A:The belt is buckled in the wrong place.
{CAUTION:
You can be seriously injured if your belt is
buckled in the wrong place like this. In a
crash, the belt would go up over your
abdomen. The belt forces would be there,
not at the pelvic bones. This could cause
serious internal injuries. Always buckle
your belt into the buckle nearest you.
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Q:What is wrong with this?
A:The shoulder belt is worn under the arm.
It should be worn over the shoulder at all
times.
{CAUTION:
You can be seriously injured if you wear
the shoulder belt under your arm. In a
crash, your body would move too far
forward, which would increase the chance
of head and neck injury. Also, the belt
would apply too much force to the ribs,
which are not as strong as shoulder
bones. You could also severely injure
internal organs like your liver or spleen.
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Q:What is wrong with this?
A:The belt is twisted across the body.
{CAUTION:
You can be seriously injured by a twisted
belt. In a crash, you would not have the
full width of the belt to spread impact
forces. If a belt is twisted, make it straight
so it can work properly, or ask your dealer
to x it.
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To unlatch the belt, just push the button on the
buckle. The belt should go back out of the way.
Before you close the door, be sure the belt is out
of the way. If you slam the door on it, you can
damage both the belt and your vehicle.
Shoulder Belt Height Adjustment
Before you begin to drive, move the shoulder belt
adjuster to the height that is right for you.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.
50