Volvo XC90: Starting and driving / Activating and deactivating Eco drive mode using the function button
There is a function button for Eco drive mode in the center display's Function
view if the vehicle is not equipped with a drive mode control in the tunnel console.
When the engine is switched off, Eco mode is deactivated and must therefore be
reactivated each time the engine is started. ECO will be displayed in the
instrument panel when the function is activated.
Selecting Eco drive mode in the center display's Function view
Tap the Driving Mode ECO button to activate or deactivate the function.

An indicator light in the button will illuminate when the function is activated.
Eco drive mode can help make driving more fuel-efficient and eco-friendly.
Use this mode to save fuel and promote ecofriendly driving.
When Eco mode is activated, the following characteristics are modified:
The automatic transmission's shifting points...
Start/Stop is a function that temporarily switches off the engine when the
vehicle has stopped, e.g. at a traffic light or in heavy traffic, and then starts
it again automatically when needed...
Other information:
Sensus makes it possible to use apps and turn your vehicle into a Wi-Fi hotspot.
This is Sensus
Sensus provides an intelligent interface and Internet connection to the digital
world. An intuitive navigation structure offers access to relevant assistance, information
and entertainment when it is needed, without distracting the driver...
The center display can be temporarily switched off and reactivated using the
home button under the screen.
Center display's home button.
When the home button is used, the screen will go dark and the touchscreen no
longer reacts to touch. The climate bar will remain visible...