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:
Data sharing for relevant services and apps can be set via the Settings menu
in the center display.
Tap Settings in the center display's Top view.
Tap System Privacy and
data.
Select to activate or deactivate data sharing for individual services and
all apps...
City Safety1 can assist the driver when turning into the path of
an oncoming vehicle in an intersection.
Sector in which City Safety can
detect an oncoming vehicle in crossing traffic.
In order for City Safety to detect an oncoming vehicle in situations where there
is a risk of a collision, that vehicle must be within the sector in which City Safety
can analyze the situation...