Graco Smart Seat Owner's Manual page 26

Passive Restraint -
Lap Belt with Motorized Shoulder Belt
DO NOT use vehicle belts that are attached
to the door in any way or that move along a
track to automatically surround the
passenger when the door is closed.
Lap Belts Forward of Seat Crease
Vehicle seat belts located forward of seat
crease may not securely hold child restraint.
Check vehicle owner's manual or see vehicle
dealer for car seat installation requirements.
If approved for use with child restraint,
install child restraint and check for secure
installation by pulling child restraint front
to back. If child restraint slides forward,
DO NOT use these seat belts.
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