Buick 1993 Roadmaster Owner's Manual page 50

If your child restraint has a top strap, it should be
anchored.
If you need to have an anchor installed, you can ask
your Buick dealer to put it in for you:If you want to
install an anchor yourself, your dealer can tell you how
to do it.
If you want to use a:-child restraint with a
top strap
in
the
second seat of a station wagon, have your dealer install a
combination anchor-tether belt to which the top strap
can be hooked. Top Strap
Sedans first sold in Canada have child restraint anchor
bracket .hardware in the glow box, along with
instructions for installing it. This should be wed only
with a child restraint, and
only
to secure a child restraint
at :a r,ear. seating position. .Additional anchor brackets
.fox
child restraints at the rear seating positions are available
at Buick dealerships in Canada.
Station wagons. first sold in ,Canada already have
a
combination anchor-tether belt installed for each
position on the second seat. These belts are attached to
the anchors for the third seat safety belts. The child
restraint top strap should .be hooked to
one of
these
combination anchor-tether belts.
48