2013 Toyota Highlander Owners Manual - Page 143
2013 Toyota Highlander Manual
Page 143 highlights
1-8. Safety information STEP 2 Outer seat: Open the anchor bracket cover, latch the hook onto the anchor bracket and tighten the top tether strap. 1 Center seat: Latch the hook onto the anchor bracket and tighten the top tether strap. Make sure the top tether strap is securely latched. Before driving STEP 3 Adjust the head restraint to the downmost position.