Buick 1993 Roadmaster Owner's Manual page 46

Push the latch plate into the bucklo u n t i l it clicks.
If the belt is not long enough, see "Safety Belt
Extender" at the end
of
this section. Make
sure-tbe
reieasc;.but=tun on the buckle
aces
upward or
,
.
,
outwadso
you
would be a b k
to unbuckle:%i qUickly
i f you
ever h.ad to.
. .
, .
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, jugt touching the thighs.
In a crash, this. applies
force ta the strong p.elvic bones.
And
you'd be less
likely to slide under the lap belt.
If
yo-u slid. under it, the
bekwould apply force at your ab.dQ.men. This could
cause serious. .or even fatal injuries. The shoulder belt
should
go
over the shoulder and acres the chest. These
parts
of the body are best able to take
belbrestraining
faxes.
The safety belt lacks if there's a sudde-n stop or a crash,
or i f you p-ull
it
very quickly out
of
the retractor.