Graco Contender Slim Instruction Manual page 80

How to Lock Your Lap and Shoulder Vehicle Seat Belt
Note: With the vehicle seat belt in this locking mode, all the tension is upwards in the
shoulder belt. This may start to tilt your car seat sideways. If this happens, use a locking
clip instead of this switching the retractor. See Sliding Latch Plate and ELR Retractor.
Sliding Latch Plate and Switchable Retractor
A latchplate that slides freely on the belt webbing
and cannot, by itself, hold the belt snug around a car
seat.
When installing the car seat, route the vehicle seat
belt through the proper belt path and buckle it in.
Slowly pull the shoulder belt all the way out to
switch it to locking mode. Then, as you pull the
vehicle seat belt tight, feed all the slack back into the
retractor.
Grab the sides of the seat at the belt path and slide
the seat side-to-side and front-to-back. The seat
should not move more than 1 inch (2.5 cm).
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