Graco FastAction Fold Owner's Manual page 69

6. Check the Rear
Facing Level
Line
The red level line on
the side of the seat
MUST BE LEVEL
with the ground.
Check the level line
with child in the
child restraint when
making sure the
line is level with the
ground.
If needed, rolled
towels may be
placed under the car
seat, at the vehicle
seat crease, until the
level line is level with
the ground.
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