5.
To
make the lap part tight, pull down on the buckle
end of the belt as you pull up
on
the shoulder belt.
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 crash, or
if you pull the belt very quickly out of the retractor.