Graco NAUTILUS 65 DLX Instruction Manual page 41

6. Open Lock Off
The open lock off that is on the opposite
side of the vehicle buckle.
7. Tighten the Vehicle Seat Belt
Press down firmly in the center of the car
seat. Pull on the shoulder belt to tighten. Lay
the shoulder belt inside the opened lock-off.
When the belt is tight, close the lock-off.
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