Volvo V90 TWIN ENGINE 2017 Owner's Manual page 192

SEATS AND STEERING WHEEL
Adjusting the head restraints in the
rear seat
Adjust the centre seat head restraint according
to the height of the passenger. Fold down the
outer seat head restraints* to improve rearward
visibility.
Adjusting the head restraint, centre
seat
The centre seat's head restraint must be
adjusted according to the passenger's height so
that, if possible, the whole of the back of the
head is covered. Slide it up manually as required.
190
To lower the head restraint, the button (see illus-
tration) must be depressed while the restraint is
carefully moved down.
WARNING
The centre seat head restraint must be in its
lowest position when the centre seat is not
used. When the centre seat is used, the head
restraint must be correctly adjusted to the
height of the passenger so that it covers the
whole of the back of the head if possible.
Electrical lowering of the rear seat's
outer head restraints*
The outer head restraints can be retracted via the
centre display's function view. You can lower the
head restraints in ignition position 0.
* Option/accessory.