Make Sure Latch Strap Is In The Forward-Facing Belt Path, Marked With Orange Label - Graco SLIMFIT Instruction Manual

4. Make Sure LATCH Strap is in the
Forward-Facing Belt Path, Marked
with Orange Label
If it is not, see section 7-A to move the
LATCH strap.
5. Unhook Top Tether Strap From
Storage Location and Lay it in the
Seat
6. Connect LATCH Connectors to
Vehicle's Lower LATCH Anchors.
LATCH strap should not be twisted.
7. Tighten the LATCH Strap
Press down firmly in the center of the car
seat while tightening the LATCH strap.
You may need to tighten through the belt
path as shown.
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