Toyota Yaris Owner's Manual page 67

Installation with ISOFIX rigid anchors (ISOFIX child restraint sys-
tem) (vehicles with rear seats)
1
Remove the head restraint. (P. 144)
2
Widen the gap between the seat cushion and seatback slightly.
3
Latch the buckles onto the
anchors.
If the child restraint has a top strap,
the top strap should be latched
onto the anchor bracket.
1-1. For safe use
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