Buick 2009 Enclave - Manual (Page 10)

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.
Pull the head restraint up
to raise it.
To lower the head restraint, press the button,
located on the top of the seatback, and push the
head restraint down.
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