Chevrolet 2001 Prizm Owner's Manual page 54

8. Push the latch plate (B) into the buckle until it clicks.
Be sure the buckle is free of any foreign objects
that may prevent you from securing the latch plates.
If you can't secure a latch plate, see your dealer for
service before using the child restraint.
9. Place the other side of the harness over the
child's shoulder.
10. Push the latch plate into the buckle until it clicks.
1-42
11. Pull up on both latch plates to make sure they
are secure.