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:
(Not available on all models.)
The spare wheel is a Temporary Spare and can be used to temporarily replace
a punctured tire on one of the vehicle's regular wheels.
The spare wheel is only intended for temporary use. Replace it with a normal
wheel as soon as possible...
(Option/accessory.)
Here are some useful tips for when you use Android Auto1.
Ensure that your apps are updated.
When starting the vehicle, wait until the center display has started, connect
the device and then open Android Auto from the app view...