Chrysler 2005 Pacifica - Manual (Page 104)

Adjustable Head Restraints
Head restraints can reduce the risk of whiplash injury in
the event of impact from the rear. Pull up or push down
on the head restraint so that the upper edge is as high as
practical. To raise the head restraint, pull up on the head
restraint. To lower the head restraint, depress the release
tab located at the base of the head restraint and push
down on the head restraint.
Adjustable Head Restraints
104 UNDERSTANDING THE FEATURES OF YOUR VEHICLE