1999 GMC C-SERIES belt

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1-12 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.
Bench (A)
Suspension (B)
3. Pick up the latch plate and pull the belt across you.
Don't let it get twisted.
4. Push the latch plate into the buckle until it clicks.
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1-13
For suspension-type seats (B), if the belt stops before
it reaches the buckle, tilt the latch plate and keep
pulling until you can buckle the belt. Pull up on the
latch plate to make sure it is secure. If the belt is
pulled out all the way so that it locks, press down on
the button on the retractor cover to make it retract.
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.
Suspension (B)
5. To make the lap part tight on suspension
-type
seats (B), pull down on the buckle end of the belt as
you pull up on the shoulder belt.
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1-14
If the shoulder belt is too tight:

Pull out the belt at least 5 inches (130 mm).

Let it go back all the way.
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1-15

You can add a small amount of slack. The system
works like a window shade. To add a little slack, pull
down on the shoulder belt just a little
-- no more
than 1 inch (25 mm).

If it's now too loose, pull it out like you did before
and start again.

If you move around in the vehicle and your shoulder
belt becomes loose, be sure to make it tight again.
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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1-16
Q:What's wrong with this?
A:The shoulder belt is too loose. It won't 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 fit against your body. Don't
allow more than 1 inch (25 mm) of slack.
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1-17
Q:What's 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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1-18
Q:What's 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 aren't as strong as shoulder bones.
You could also severely injure internal organs
like your liver or spleen.
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1-19
Q:What's 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 wouldn't 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 fix it.
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