Volvo XC90: Specifications / Transmission fluid specifications
Under normal driving conditions, the transmission fluid will not need to be
changed during the transmission's service life. However, it may need to be changed
if the vehicle is driven frequently in adverse driving conditions.

Engine oil of type VCC RBS0-2AE 0W-20 must be used. Lower oil grades may not
offer the same fuel economy, engine performance or engine protection.
Volvo recommends:
General
See the Service and warranty booklet for information about oil change intervals...
The medium in the hydraulic brake system is called brake fluid and is used
to transfer pressure from e.g. a brake pedal via a master brake cylinder, which
in turn actuates the brake calipers...
Other information:
(Option/accessory.)
Several different sequences are available for keyless unlocking.
To change this setting:
Tap Settings in the center display's Top view.
Tap My Car Locking
Keyless Unlock.
Select alternative:
All Doors – unlocks all doors at the same time...
Returning to Home view from another view
Briefly press the home button below the center display.
The most recent Home view mode will be displayed.
Press briefly again.
All of the Home view's tiles will return to standard mode.
NOTE
In Home view's standard mode – short press on the Home button...