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. After checking the area, crews determined the alert was the result of an accidental activation, and no emergency was found.

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 the 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.