See also:

Setting a warning distance
This setting determines the distance at which the visual and audible warnings are triggered. Select Long, Normal or Short by pressing MY CAR on the center console control panel and going to Set ...

Working on your vehicle
Note the following before you begin working on your vehicle: ...

Children should be seated safely
Volvo recommends the proper use of restraint systems for all occupants including children. Remember that, regardless of age and size, a child should always be properly restrained in a vehicle. ...