Chevrolet Sonic 2015 Owner's Manual page 92

2.4. Route and tighten the top
tether according to your
child restraint instructions
and the following
instructions:
If the position you are using
does not have a headrest
or head restraint and you
are using a single tether,
route the tether over the
seatback.
I n f o r ma t i o n P r o v i d e d b y :
Seats and Restraints
If the position you are using
does not have a headrest
or head restraint and you
are using a dual tether,
route the tether over the
seatback.
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