Graco Extend2Fit Instruction Manual page 42

11. Tighten the Lower Anchor Strap
Press down firmly in the center of the car
seat while tightening the lower anchor
strap. You may need to tighten through
the rear-facing belt path as shown.
12. Test For Tightness
Grab the sides of the seat where the
lower anchor strap 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.
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