Pontiac 1993 Sunbird Owner's Manual page 35

Seats & Restraint Systems
Once the special hardware is installed,
please follow the instructions with it
and these steps:
1,
Unbuckle the automatic lap-shoulder
belt by pushing the button on the
buckle.
It will stay on the door, ready to be
rebuclded for use by adults or older
children.
2. Snap one hook of the infant/child
seat attaching belt near the floor at
the door side of the seat.
3 . Put the belt's special latch plate into
the vehicle's safety belt buckle.