2010 Toyota 4Runner Owners Manual - Page 173
2010 Toyota 4Runner Manual
Page 173 highlights
1-7. Safety information STEP 2 Open the anchor bracket cover, latch the hook onto the anchor bracket and tighten the top tether strap. Make sure the top tether strap is securely latched. CTH17AS071 STEP 3 Replace the head restraint. CTH17AS099