Graco 8444 Owner's Manual page 32

Final Safety Check: Every time
you drive with your child,
PUSH DOWN on the top of the infant restraint
slowly but firmly to make sure the vehicle belt
does not lengthen at all and that the vehicle
belt or LATCH is fastened very tightly around the
infant restraint/base .
Holding the infant restraint near the vehicle belt
path, TWIST AND PULL the seat forward and to
both sides to make sure the vehicle belt or
LATCH does not lengthen or loosen and the
infant restraint does not easily move .
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