Lexus GX460 Manual page 163

Child restraint systems with a top tether strap
Secure the child restraint using a seat belt or the LATCH anchors,
STEP 1
and do the following.
STEP 2
GX460_U.S.A. (OM60G24U)
1-7. Safety information
Move the head restraint in place at
the upmost position.
Open the anchor bracket cover,
latch the hook onto the anchor
bracket and tighten the top strap.
Make sure the top strap is securely
latched.
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