Toyota 2009 Tacoma User Manual page 47

1-3. Adjustable components (seats, mirrors, steering wheel)
Active head restraints (Access Cab and Double Cab models only)
Active head restraints
n
Even small forces applied to the seatback may cause the head restraint to
move. Pushing up a locked head restraint forcibly may show the head
restraint inner structure. These do not indicate problems.
48
When
presses against the seatback
during a rear-end collision, the
head restraint moves slightly for-
ward to help reduce the risk of
whiplash on the seat occupant.
Inner
structure
the occupant's
During
rear-end
collision
back