Graco NAUTILUS Owner's Manual page 37

4. Tighten vehicle seat belt
Push down hard with your knee or free hand
in the middle of the child restraint .
Then pull and tighten the vehicle belt.
For more information on how to tighten the
belt for your seat belt system Section 8.0
5. If a vehicle top tether anchor is available,
secure the tether to hold seat in place.
6. Safety Check for Secure Installation
Perform this test every time you drive with your child.
Twist and pull child restraint forward and to
both sides to make sure the vehicle belt does not
lengthen or loosen and the child restraint does not
easily move. The child restraint should not move
side to side or forward more than 1 inch (2.5 cm). .If
OR
Section 8.0 Choosing an Appropriate Vehicle Seat
37