Chevrolet 2001 Prizm Owner's Manual page 56

13. Pull the shoulder harness adjustment strap (C)
firmly until the harness is snugly adjusted around
the child. You should not be able to put more
than two fingers between the harness and the
child's chest.
Make sure the harness and buckle strap are
not twisted.
1-44
14. Adjust the position of the harness on the child's
shoulders by moving the clip up or down along the
harness. On each side of the harness, the shoulder
part should be centered on the child's shoulder.
The harness should be away from the child's face
and neck, but not falling from the child's shoulders.