Inflatable Curtain

The Inflatable Curtain (IC)

This system consists of inflatable curtains located along the sides of the roof liners, stretching from the front side windows to the rear edge of the rear side windows. It is designed to help protect the heads of the occupants of the front seats and the occupants of the outboard rear seating positions, including the outboard passenger in the third row of seats in certain side impact collisions.

The inflatable curtains in the Volvo XC90 are also designed to help protect the occupants of the vehicle in a roll-over situation, and to help prevent them from being thrown from the vehicle if a roll-over occurs.
By design, the IC system deploys only on the side of the vehicle affected by the impact.
However, in certain side impacts, or in a rollover situation, BOTH the Inflatable Curtains and the Side Impact Airbag System (SIPS-bag) will deploy, whereas, in some cases, ONLY the Inflatable Curtain will deploy. In cases where BOTH the Inflatable Curtain and the SIPS-bag deploy, deployment will occur simultaneously.
Test yourself
A quick Volvo XC60 quiz: every answer comes with an explanation and a link to the manual page.