Lexus LX 470 1998 Owner's Manual page 128

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1. Run the center lap belt through or around the infant seat following
the instructions provided by its manufacturer and insert the tab into
the buckle taking care not to twist the lap belt.
CAUTION
D After inserting the tab, make sure the tab and buckle are
locked and that the lap belt is not twisted.
D Do not insert coins, clips, etc. in the buckle as this may
prevent you from properly latching the tab and buckle.
D If the seat belt does not function normally, immediately
contact your Lexus dealer. Do not use the seat until the seat
belt is fixed. It cannot protect your child from injury.
COMFORT ADJUSTMENT
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2. When pressing the infant seat firmly against the seat cushion and
seatback, tighten the lap belt by pulling its free end to hold the infant
seat securely.
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