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:
The alarm is armed when the vehicle is locked and disarmed when the vehicle
is unlocked. The alarm can also be disarmed without a functioning key.
Arming and disarming the alarm
The alarm is armed when the vehicle is locked and disarmed when the vehicle is
unlocked...
Specifications for replaceable light bulbs. If you are experiencing problems
with any lights other than light bulbs, contact a workshop1. If there
is a problem with an LED2 light, the entire lamp unit will normally need
to be replaced.
A Watt
1 An authorized Volvo workshop is recommended...