Volvo XC90: Maintenance and service / Bulb specifications
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.
2 LED (Light Emitting Diode)
The turn signal bulbs in the halogen headlights can be changed without the
help of a workshop.
Before the bulbs can be replaced, the plastic covering over the headlight must
be removed...
Use cleaning agents and car care products recommended by Volvo. Clean regularly
and treat stains immediately. It is important to vacuum before using a cleaning
agent...
Other information:
Steering assistance has several sub-functions. Steering assistance during
collision risks from oncoming traffic can help a distracted driver who has not noticed
that the vehicle is veering out of the lane.
The function provides assistance by swerving your vehicle back
into your own lane...
Screw the spare tire's retaining bolt back on.CAUTION
Do not attempt to unscrew the lower part of the retaining bolt if it
is attached to the body, as this could cause it to break.
If the retaining bolt becomes dislodged from its lower attachment point
in the body under the spare tire, replace it in the hole and turn clockwise
to secure it again...