Geo 1995 Prizm Owner's Manual page 34

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 "Safety
Belt Extender" 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.
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3. To make the lap part tight, pull down on the buckle
end of the belt as you pull up on the shoulder part.
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.
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