2009 Toyota Tundra Owners Manual - Page 192

1-7. Safety information Pull up the straps of center and left seats. 1 Before driving Route the top tether strap through the routing device as shown in the illustration. Make sure the top tether strap is not twisted. Routing device Latch the hook onto the inner anchor strap ring and tighten the top tether strap. Make sure the top tether strap is securely latched. Inner anchor strap ring Lower the head restraints of center and left seats. 161