What triggers the Automatic Crash Notification (ACN)?

The Automatic Crash Notification (ACN) is a system designed to automatically alert emergency services when a vehicle is involved in a significant collision. Airbag deployment serves as a critical indicator of a crash that meets the threshold for emergency response. When an airbag deploys, it typically means that the impact was substantial enough that the safety systems of the vehicle recognized a severe incident likely associated with injuries or the need for immediate assistance.

This system is intended to expedite emergency response by providing crucial information to first responders, including the location of the crash and, in some cases, details about the severity of the impact. In contrast, activation of emergency lights, engagement of the vehicle’s GPS, or anti-lock brake engagement do not serve as definitive triggers that would indicate a need for emergency services in the context of a serious accident. These functions might activate for various reasons, but they are not as strongly correlated with the need for urgent medical attention as airbag deployment is.