Oldsmobile 2004 Silhouette Owner's Manual page 19

If the front latches are not attaching correctly, check
that the seat is in the full rear position.
3. Firmly push the rear hooks onto the rear floor pins
by pushing down on the rear of the seat.
4. Try to raise the seat to check that it is locked down.
5. Lift the seatback recliner lever or pull the nylon
strap on the back of the seat and raise the
seatback until it locks upright.
6. Push and pull on the seatback to check that it is
locked.
Repeat these steps for the other section of the split
bench seat.
1-13