2005 Toyota 4Runner Owners Manual - Page 532

'05 4Runner_U (L/O 0504) -Using a top strap (vehicles without third seats) Anchor brackets Symbol 2. To remove the booster seat, press the buckle release button and allow the belt to retract. Follow the procedure below for a child restraint system that requires the use of a top strap. Use the anchor brackets behind the rear seatbacks to attach the top strap. Anchor brackets are installed for each rear seating position. This symbol indicates the location of the anchor brackets. 108