2009 Nissan Altima Owner's Manual - Page 50

6. Check to make sure the child restraint is properly secured prior to each use. If the child restraint is loose, repeat steps 3 through 5. LRS0673 LRS0674 Rear-facing - step 4 4. For child restraints that are equipped with webbing mounted attachments, remove any additional slack from the anchor attachments. Press downward and rearward firmly in the center of the child restraint with your hand to compress the vehicle seat cushion and seatback while tightening the webbing of the anchor attachments. Rear-facing - step 5 5. After attaching the child restraint, test it before you place the child in it. Push it from side to side while holding the seat near the LATCH attachment path. The child restraint should not move more than 1 inch (25 mm), from side to side. Try to tug it forward and check to see if the LATCH attachment holds the restraint in place. If the restraint is not secure, tighten the LATCH attachment as necessary, or put the restraint in another seat and test it again. You may need to try a different child restraint. Not all child restraints fit in all types of vehicles. 1-32 Safety-Seats, seat belts and supplemental restraint system