Graco ISPA001AF Owner's Manual page 76

5. Tighten the vehicle seat belt. Refer to your vehicle owners
manual and the instructions in "5.2.2 SAFE Vehicle Belt
Systems", p. 24-25, on tightening your vehicle belt.
To create a very tight installation, push down hard with your knee
or free hand in the middle of the infant restraint or base
and pull and tighten the vehicle belt.
6. Push the infant restraint down into the base and make sure that
you hear a "click"
it is latched securely into the base.
If the infant restraint does not securely
latch into the base, the infant restraint
provides NO protection for your child.
DO NOT use the infant restraint/base
if the infant restraint does not securely
latch into the base.
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. Pull up on the infant restraint to be sure
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