THE SS uses a front structure designed around "soft pulse" crash energy management principles. The structure behind the front wheels has been designed to manage narrow offset collisions and reinforced side structures protect against side impacts. Seatbelt webbing clamps and buckle pretensioners assist safety belt performance. The driver's airbag has low pressure inflators designed to prevent injury from airbag inflation. A passenger airbag is standard on SS and side airbags are standard if leather upholstery is specified. The Commodore's systems turn off the engine and fuel pump, unlock the doors and switch on the dome lamp when the seatbelt pretensioners are triggered.