Folded like a parachute, an airbag is made of strong lightweight nylon material. When sensors detect a rapid deceleration and/or a severe frontal or side impact, they act as switches, sending an electric current to an inflator in the airbag module.
The airbag deploys in a fraction of a second, helping to protect the head and upper torso from injury. The airbag quickly deflates after deployment to absorb energy.
In the event of a significant side-on impact, side airbags deploy to minimise the shock inflicted upon the front seat occupants' chest. On the passenger's side an Occupant Position Detection System (OPDS) is incorporated which minimises the risk of airbag-inflicted injuries.