Buick 1993 LeSabre Owner's Manual page 49

6. To tighten the belt, feed the lap belt into the retractor
while you push down on the child restraint.
7. Push and pull
the
child restraint in different
directions to be sure
it
is secure.
To remove the child restraint, just unbuckle the vehicle's
safety belt and let
it
go back all the way. The safety belt
will move freely again and be ready to work for an adult
or larger child passenger.
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