2004 Nissan Altima Owner's Manual - Page 59

7. Check to make sure the child restraint is properly secured prior to each use. If the seat belt is not locked, repeat steps 3 through 6. After the child restraint is removed and the seat belt is fully retracted, the automatic locking mode (child restraint mode) is canceled. WRS0161 WRS0380 Front Facing - step 4 4. Allow the seat belt to retract slightly. Pull up on the shoulder belt to remove any slack in the belt. Front Facing - step 5 5. Before placing the child in the child restraint, use force to tilt the child restraint from side to side, and tug it forward to make sure that it is securely held in place. It should not move more than 1 inch. 6. Check that the retractor is in the automatic locking mode by trying to pull more seat belt out of the retractor. If you cannot pull any more belt webbing out of the retractor, the retractor is in the automatic locking mode. Safety-Seats, seat belts and supplemental air bags 1-41