Buick PARKAVENUE 1994 Manual page 44

If your vehicle has a center passenger position, be sure
to use the correct buckle when buckling your
lap-shoulder belt. If
you find that the latch plate will not
go fully into the buckle, see if you are using the buckle
for the center passenger position.
Center Passenger Position
f
1
Lap Belt
When you sit in a center seating position, you have a lap
safety belt, which has no retractor. To make the belt
longer, tilt the latch plate and pull it along the belt.