On the evening of December 3, a smartphone accident detection function called 911 without a vocal confirmation, prompting the Cass Township Volunteer Fire Company to respond to an automated emergency alert.

Units were sent to Cass Township at around 8:45 p.m. in response to an iPhone accident detection warning with negative voice contact. Ambulance 1201, Brush 21, Squad 21, and a special unit responded. Chief 21 was in charge. Crews checked the area and discovered no emergency, concluding that the alarm had been accidentally activated.According to the department, when a phone detects a significant impact, crash detection is activated. Before the phone automatically calls 911 and sends location data, users have around 20 seconds to deactivate the alert. Alerts are frequently triggered when a phone is dropped forcefully or falls from a car's top.

Fire authorities expressed gratitude to the Three Springs Volunteer Fire Company and Mill Creek Volunteer Fire Company for providing extra resources. Officials pointed out that although this instance was a false alarm, the technology has been successful in alerting responders during significant collisions, including those involving vehicles off the road.