Lexus ES300 Owner's Manual page 162

COMFORT ADJUSTMENT
" 1 Anchor brackets 2 Symbol mark
Use the anchor bracket on the package tray behind the rear
seat to attach the top strap.
Anchor brackets are installed for each rear seating position.
This symbol indicates the locations of user ready anchor
bracket.
148
TO USE THE ANCHOR BRACKET
1. Outside anchor brackets only—Remove the head
restraint.
2. Pull up the lid of the anchor bracket.