GB IDAN User Manual page 65

adjust Recline
adjust the seat angle until the red level line
on the infant carrier is level with the ground.
if you are having trouble achieving the proper
recline angle:
- Uninstall infant carrier.
- place a tightly rolled towel or pool noodle
under the infant carrier, where indicated.
if on an aircraft, a tightly rolled airline
blanket may be placed under the infant
carrier to adjust the angle.
continue installation.
FRONT OF VEHICLE
LINE MUST BE LEVEL WITH GROUND
WHEN INSTALLED WITHOUT BASE
FRONT OF VEHICLE
LINE MUST BE LEVEL WITH GROUND
WHEN INSTALLED WITHOUT BASE 65