Saturn 2008 AURA Green Line Hybrid Owner's Manual page 11

Head Restraints
Adjust the head restraint so that the top of the restraint
is at the same height as the top of the occupant's
head. This position reduces the chance of a neck injury
in a crash.
The rear seat head rests are also adjustable.
Pull the restraint up to
raise it. To lower the
head restraint, press the
button, located on the
top of the seatback, and
push the restraint down.
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