Toyota SIENNA 2009 Quick Reference Manual page 83

1-3. Adjustable components (seats, mirrors, steering wheel)
Front seats
Manual seat
Passenger's seat
Seat position adjustment lever
Seatback angle adjustment lever
Vertical height adjustment lever
Lumbar support adjustment knob
Seatback folding lever (if equipped)
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I n f o r ma t i o n P r o v i d e d b y :
Driver's seat