Airbag, or airbag as it is also commonly called, is a safety device in cars that is designed to protect you and your passengers in the event of a collision. There are different types of airbags, the most common of which are located in the steering wheel and in the front passenger seat.
Newer cars also have airbags located on the sides that protect against side collisions. If you use a child restraint in the front passenger seat, the airbag must be disengaged, as it can seriously injure the child if deployed.