Volvo XC90: Lighting / Hazard warning flashers
Hazard warning flashers warn other road users by all of the vehicle's turn
signals being activated at the same time. The function can be used to warn about
a traffic hazard.

Hazard warning flashers button.
Press the button to activate the hazard warning flashers.
NOTE
Regulations concerning the use of hazard warning flashers may vary from
country to country.
The brake lights are automatically illuminated when braking.
The brake lights are illuminated when the brake pedal is depressed and when the
brakes are automatically applied by a driver support system...
Some of the exterior lights remain on to illuminate the area around the vehicle.
This is called home safe lighting.
To activate home safe lighting:
Switch off the ignition...
Other information:
(The function is not available for vehicles with the small gear selector.)
If the vehicle does not have electrical current, the automatic shiftlock may
be disengaged on vehicles equipped with the large gear selector. The shiftlock cannot
be disengaged on vehicles equipped with the small gear selector...
Suitable child restraints should always be used when children travel in the
vehicle.
Child restraint systems
Infant seat
There are three main types of child restraint systems: infant seats, convertible
seats and booster cushions. They are classified according to the child's age and
size...