Modern vehicles are equipped with sophisticated airbag systems designed to deploy in specific collision scenarios. When sensors detect a sudden deceleration consistent with a crash, they trigger an inflator that rapidly fills the airbag with gas—typically within 20 to 30 milliseconds. This creates a cushion between the occupant and hard surfaces like the steering wheel, dashboard, or side panels.
Most vehicles today have multiple airbags, including frontal airbags for the driver and front passenger, side-impact airbags, curtain airbags that protect the head, and sometimes knee airbags. Each airbag has specific deployment thresholds based on the severity and direction of impact. For example, frontal airbags typically deploy in moderate to severe frontal or near-frontal crashes, while side airbags deploy in side-impact collisions.
The effectiveness of airbags in preventing serious injuries and fatalities is well-documented. According to the NHTSA, frontal airbags saved 50,457 lives between 1987 and 2017. However, when these systems fail, the results can be catastrophic. Understanding how airbags should function is the first step in recognizing when a failure has occurred and pursuing appropriate legal action for car accident injuries.