GMC 1993 Safari Owner's Manual page 18

Seats and Safety Belts
Don't have a seatback reclined if your vehicle is moving.
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I l u l l
Sitting in a reclined position when your vehicle i s in motion can be
I
dangerous. Even i f you buckle up, your safety belts can't do their
job
when you're reclined like this.
The
shoulder belt can't do i t s job because it won't be against your
body. Instead, it wi l l be in front of you. In a crash you could go into
it, receiving neck or other injuries.
The lap belt can't do its job either. In a crash the belt could go up
over your abdomen. The belt forces would be there,
not
at your
pelvic bones. This could cause serious internal injuries.
For proper protection
when
the vehicle is in motion, have the
seatback upright. Then sit well back in the seat and wear your
safety
-belt properly.
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