Graco 8J00MTX - Nautilus 3- In 1 Toddler Car Seat Owner's Manual page 27

5. The harness straps must go into the slots
.
If straps are in proper slots go to page 31.
6 .
a) Turn seat around, so you will have access to
the rear of the seat.
b) From the rear of the seat remove straps
.
from metal junction plate
27