Automatic Crash Alerts Could Become the Next Essential Vehicle Safety Feature
A technology that can summon emergency help before a crash victim is able to reach a phone should be installed in every new vehicle, trauma surgeons argue in a new paper published in the Journal of the American College of Surgeons. Members of the American College of Surgeons Committee on Trauma (ACS COT) are calling for automatic crash notification (ACN) and advanced automatic crash notification (AACN) systems to be treated as fundamental safety equipment, alongside seat belts and airbags. The authors say these systems can close one of the most dangerous gaps in trauma care: the time between a collision, the arrival of emergency medical services, and the start of definitive treatment. They also warn that many drivers may believe crash notification is active when, in reality, it has expired with a connected-services subscription.
Automatic crash notification systems are designed to detect a serious collision and alert an emergency response center without requiring anyone inside the vehicle to dial 911. Depending on the system, the alert can include the vehicle’s precise location, the approximate time of the crash, the direction of travel, and information about the event’s severity. Some systems establish a voice connection between an operator and the vehicle, allowing responders to communicate with occupants who may be confused, injured, trapped, or unable to identify their location. That capability is particularly important when a crash occurs in an isolated area, at night, or on a road where other motorists may not immediately pass by. In the most severe collisions, occupants may be unconscious or physically unable to make a call, making an automated alert the only early link to emergency services.
AACN systems take this concept further by transmitting vehicle telemetry—technical information generated by sensors and safety systems during a collision. Depending on the automaker and system design, the data may include the change in speed immediately before impact, the direction of the collision, airbag deployment, seat-belt status, rollover detection, and the number or severity of impact events. These measurements do not diagnose injuries, and they cannot replace an assessment by paramedics or physicians. However, they can help produce an early estimate of the likelihood of severe trauma before responders reach the scene. A rollover involving multiple impacts, for example, may indicate a substantially different injury risk from a low-speed collision with limited vehicle deformation. More detailed information could help dispatchers decide how urgently to send resources and what type of response is most appropriate.
The potential effect on survival is linked to a basic principle of trauma medicine: minutes matter. Research has associated longer delays between a crash and notification of emergency medical services with a greater risk of death, with the problem often intensified in rural regions. Rural communities may have fewer ambulances, longer travel distances, limited cellular coverage, and greater separation between crash sites and trauma centers. An automatic alert can begin the response while occupants are still waiting for help to be located. If the transmitted data suggests a high probability of major injury, dispatchers may consider sending advanced life-support personnel, multiple ambulances, air medical transport, specialized extrication teams, or a direct route to a trauma center. Previous modeling cited by the authors estimated that AACN technology could save between 360 and 721 lives each year.
The clinical value of crash data extends beyond simply sending an ambulance. Information about restraint use may help responders estimate how many occupants could be injured, while details about airbags and rollover events can signal the possibility of multiple trauma victims. In a vehicle that has overturned several times, for instance, emergency planners may prepare for spinal injuries, head trauma, internal bleeding, and difficult extrication. Data indicating that a seat belt was not engaged may increase concern about ejection or severe impact injuries, although such signals must be interpreted carefully because sensor records can be incomplete or misleading. The ACS COT authors envision AACN information as an early decision-support tool that can improve communication among 911 centers, emergency medical services, hospitals, and trauma specialists rather than as an automated replacement for professional judgment.
A major concern raised in the paper is that life-saving notification is frequently bundled with convenience features. Automakers may package ACN with remote starting, vehicle tracking, mobile Wi-Fi, roadside assistance, concierge services, or remote door locking. In many cases, the safety function is initially provided during a trial period and may stop operating when the trial ends or when a customer cancels a broader subscription. Drivers may not realize that they have lost emergency notification because the vehicle itself continues to look and function normally. Theresa L. Chin, MD, MPH, FACS, the paper’s lead author, said she discovered that automatic crash notification in a vehicle used by her own family was no longer active because the associated subscription had not been renewed. At a conference attended by trauma professionals, she said, only one person knew that their vehicle had an active crash notification service.
The authors argue that this arrangement creates an unacceptable distinction between safety equipment and paid convenience. Seat belts and airbags do not deactivate because a monthly service fee was missed, and the surgeons say automatic crash notification should follow the same principle. The European Union has already required an emergency notification system known as eCall in all new vehicles since March 2018. The system automatically contacts emergency services after a serious collision and does not depend on a paid subscription. The ACS COT is urging similar nationwide access in the United States, while recognizing that technical challenges remain. A system that relies on cellular networks may be less dependable in remote regions, and some systems require a paired mobile phone rather than a built-in communications module. Any national approach would therefore need to address network coverage, backup connectivity, cybersecurity, privacy, and the reliability of communication after severe vehicle damage.
Standardization is another central issue. At present, automakers may collect and describe crash information in different ways, making it difficult for dispatchers and clinicians to compare data across vehicle brands. The surgeons say common definitions are needed so that terms such as “high risk of severe injury” have a consistent, clinically meaningful interpretation. A crash classification that triggers an urgent response in one manufacturer’s system should not represent a fundamentally different level of danger in another. Shared technical standards could also make it easier for vehicle data to reach 911 centers and emergency response platforms without manual translation or proprietary barriers. The authors support research partnerships involving automakers, the National Highway Traffic Safety Administration, trauma systems, emergency physicians, injury-prevention scientists, and federal agencies to determine which measurements are most accurate and most useful in real-world emergencies.
Drivers can investigate whether their current vehicle has ACN or AACN by checking the owner’s manual, manufacturer’s application, or connected-services account for terms including “automatic crash notification,” “emergency call,” “911 assist,” “eCall,” or “SOS.” An emergency button near the rearview mirror or overhead console may indicate that the vehicle is equipped with such a system, but its presence does not guarantee that the service is activated. Owners should determine whether the feature depends on a subscription, a built-in cellular connection, or a paired smartphone. Dealerships and manufacturers can use the vehicle identification number to confirm what was included in a specific model year and options package. The ACS COT says this uncertainty should ultimately be eliminated by making crash notification standard, permanently available, interoperable, and free of additional subscription charges. The authors describe that shift as a way to ensure that emergency technology protects people because they are in danger—not because they happen to be paying for a connected-vehicle package.
Subject of Research: Automatic crash notification and advanced automatic crash notification systems in vehicles
Article Title: Advanced Automatic Crash Notification Systems: It Is Time to Adopt Potentially Life-Saving Technology
News Publication Date: 21-Aug-2026
Web References: https://www.facs.org/about-acs/statements/statement-on-automatic-crash-notifications/ ; https://www.ovid.com/jnls/journalacs/fulltext/10.1097/xcs.0000000000002168~advanced-automatic-crash-notification-systems-it-is-time-to ; https://www.facs.org/quality-programs/trauma/committee-on-trauma/
References: Chin TL, Valenzuela JY, Duncan T, et al. “Advanced Automatic Crash Notification Systems: It Is Time to Adopt Potentially Life-Saving Technology.” Journal of the American College of Surgeons, 2026. DOI: 10.1097/XCS.0000000000002168
Keywords
Automatic crash notification, advanced automatic crash notification, vehicle safety technology, emergency medical services, trauma care, crash telemetry, road safety, AACN, ACN, trauma centers, rural emergency response, connected vehicles, injury prevention
