TOYOTA 2010 Corolla - Manual (Page 121)

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1-7. Safety information
1
Before driving
Child restraint systems with a top tether strap
Secure the child restraint using a seat belt lower anchor, and
do the following.
Outside
Remove the head restraint.
Center
Lock the head restraint in place
at the lowest position.
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.
STEP 1
STEP 2