Volvo XC90: Displays and voice control / Function view in the center display
Function view, which is one of the center display's basic views, contains all
of the vehicle's function buttons. From the Home view, navigate to Function view
by swiping from left to right over the screen1.
Different types of buttons
There are three different types of buttons for vehicle functions; see below:

Button modes

When a function or parking button's LED indicator is green, the function is activated
(on). For some functions, an additional text explaining the function will be shown
when the function is initially activated. The text will be displayed for a few seconds
and then the button will be displayed with the LED indicator illuminated.
For Lane Keeping Aid, for example, the text Works only at certain speeds
will be displayed when the button is pressed.
Press the button once briefly to activate or deactivate the function.

The function is deactivated when the LED indicator light is switched off.

A warning triangle in the right-hand section of the button indicates that something
is not working correctly.
1 Applies for left-hand
drive vehicles. For right-hand drive vehicles, swipe in the other direction.
Home view consists of four tiles: Navigation, Media, Phone and
a fourth tile. These views can be expanded.
Expanding a tile from standard mode
Standard mode and expanded mode of a tile in the center display...
The apps and buttons for vehicle functions can be moved and organized in the
App and Function views.
Swipe from right to left1
to access App view or swipe from left to right1
to access Function view...
Other information:
To get to know your new vehicle, read the Owner's Manual before driving it
for the first time.
Reading your Owner's Manual is a way to familiarize yourself with new features
and functions, get advice on how to handle your vehicle in different situations,
and to learn how to take advantage of everything your Volvo has to offer...
Regularly check the brake system components for wear.
To keep the vehicle as safe and reliable as possible, follow the Volvo service
schedule specified in the Warranty and Maintenance Records Information booklet.
After replacing brake pads and brake discs, braking effect is not adapted until
they are "broken in" by driving a few hundred kilometers (miles)...