2010 Toyota Highlander Owners Manual - Page 1333

1-3. Adjustable components (seats, mirrors, steering wheel) CAUTION ● Do not recline the seat any more than necessary to achieve a proper seating position. The seat belt is most effective when the occupants are sitting up straight and well back in the seats. ● Do not wear the shoulder belt under your arm. ● Always wear your seat belt low and snug across your hips.