A rear window defroster is an embedded or applied electric heating element that warms the rear window to rid the glass of fogginess and frost or loosen snow and ice. The defroster is usually activated by a button on the console or dash and sometimes with a remote start.

An inflatable seat belt is a passive restraint strap in a car enhanced with internal airbags. The airbags inflate during a crash, helping to distribute forces from the crash across the torso, reducing the risk of injury to the occupant.