Graco 4EVER 4-IN-1 CAR SEAT Instruction Manual page 10

What is UAS?
UAS consists of lower anchors and top tether anchors, which are built-in
to your vehicle, and connecting hooks that are built-in to your car seat.
Lower anchors are used INSTEAD of the vehicle's seat belt to secure the
child seat to the vehicle. Top tethers are used IN ADDITION to the lower
anchors OR the vehicle's seat belt to secure a forward-facing car seat to
the vehicle.
Review your vehicle's owner manual for exact location and use.
Typical seat in a passenger
Vehicle Top Tether
vehicle. Other vehicle types
Anchor Points
may have different UAS
locations.
Vehicle Lower
Anchor Points
Vehicle Seat Bight
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