Graco Century Owner's Manual page 61

Base with seat belt
2. Place the base
vehicle seat. Thread the seat belt.
Infant restraint with seat belt
3. Place the infant restraint
facing vehicle seat. Thread the seat belt.
4. Buckle the seat belt. Make sure the buckle
tongue goes into the correct buckle
seat belt should not be twisted or turned.
in a rear-facing position in a forward-facing
Belt MUST go under tongue
in a rear-facing position in a forward-
33
. The