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:
The driver can choose different drive modes to determine how driver support
should maintain a time interval to the vehicle ahead.
Settings are made using the DRIVE MODE controls.
Select one of the following:
Eco - Driver support will focus on providing good fuel economy, which
will increase the time interval to the vehicle ahead...
For the recommended service intervals and warranties to be applied, an approved
engine oil must be used.
Location of warning decal for the engine compartment. The layout
of the engine compartment may vary depending on model and engine variant.
Volvo recommends:
If the engine oil is not checked regularly and the level becomes low, this could
cause serious engine damage...