Chicco KeyFit Base User Manual page 7

Snugly adjust the harness around your infant. A loose harness could cause the
infant to be ejected in a sudden stop or crash, resulting in serious injury or death.
A snug strap should not allow any slack. It lies in a relatively straight line without sagging.
It does not press on the infant's flesh or push the infant's body into an unnatural position.
NEVER use clothing or blankets that interfere with fastening or tightening the
harness. An unsecured infant could be ejected in a sudden stop or crash!
To keep infant warm, place a blanket over infant and infant restraint system AFTER you
have properly secured infant in harness.
ALWAYS check to make sure buckle is securely latched. If buckle separates,
infant could be killed or seriously injured.
NEVER leave infant unattended.
ALWAYS keep infant properly secured in harness whenever infant is in Carrier.
WARNING
Secure Infant Properly
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