Graco 8J00MTX - Nautilus 3- In 1 Toddler Car Seat Owner's Manual page 33

6. If a vehicle top tether anchor is available,
secure the tether to hold seat in place.
See Section 18.0 Using the Tether, page 56.
When not using the tether, hook it on the tether
storage bar on the rear of the seat, see page 57.
7. 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 child restraint is loose or not secure, repeat
procedure OR find another location for the child
restraint, see Section 7.0 Choosing an Appropriate
Vehicle Seat Location, p. 18.
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