Supplemental restraint system (SRS) is best described as?

• A. An anti lock braking system.
• B. A seat belt system with no airbags.
• C. An air bag system that adds additional protection for drivers and passengers.
• D. A traction control system.

Answer: (C)

The supplemental restraint system is an air bag system that adds additional protection for drivers and passengers. The idea behind "supplemental" is that airbags work with the primary restraint—seat belts—to reduce injuries during crashes. Airbags deploy quickly to cushion occupants from impact with interior surfaces and can be tailored (front, side, curtain, etc.) to provide protection in different crash situations. This is different from anti-lock braking systems or traction control, which manage vehicle dynamics, or from a seat belt system with no airbags, which lacks the extra cushioning airbags provide.