2006 Toyota Matrix Owners Manual - Page 80
2006 Toyota Matrix Manual
Page 80 highlights
'06 MATRIX_U (L/O 0508) -Using a top strap 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 in the luggage compartment to attach the top strap. Anchor brackets are installed for each rear seating position. This symbol indicates the locations of the anchor brackets. 80