Graco 4EVER 4-IN-1 CAR SEAT Instruction Manual page 50

9. Tighten the UAS Strap
Press down firmly in the center of the car
seat while tightening the UAS strap. You
may need to tighten through the slit in the
pad at the belt path as shown.
10. Attach Top Tether Strap
Extend the top tether by
lifting up on the tether lock
and attach.
Consult vehicle's owner
manual for specific location.
11. Tighten Top Tether Strap
Remove all the slack.
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