3-B Install Booster
If the lower anchor attachment interferes with the vehicle seat belts or if the chosen seating
position does not have lower anchor bars, you MUST store the lower anchor straps. Always
secure car seat with the lower anchors or a vehicle seat belt, even when unoccupied. In a
crash, an unsecured car seat can injure passengers.
Graco allows the securing of the car seat with the lower
anchor system in the booster mode. The child still MUST BE
SECURED with the vehicle lap/shoulder seat belt. The lower
anchors can be used in the booster mode regardless of the
weight of the child up to 110 lb (50 kg).
Verify the following before using the lower anchors in the
booster mode:
• The lower anchor attachment DOES NOT interfere with
any vehicle seat belts or buckles.
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