Graco TrioGrow SnugLoc Instruction Manual page 85

13. Tighten the Top Tether Strap
Push the car seat back while tightening
the top tether strap to remove all the
slack.
14. Test For Tightness
Grab the sides of the seat where the
vehicle seat belt is and slide the car
seat side-to-side and front-to-back.
If the seat moves less than 1" (2.5
cm), it is tight enough.
See section 6-A to secure your child.
15. Replace the Seat Pad
Move the headrest back to its proper
position for your child.
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