“The owner of this iPhone was in a severe car crash…”Įxcept, the owner was just on a roller coaster.Īn Apple spokesperson told Joanna that Crash Detection is “‘extremely accurate in detecting severe crashes’ and that the company optimized it for getting users help while minimizing false positives.” Since the iPhone 14 went on sale, the 911 dispatch center near Kings Island amusement park has received at least six phones calls saying: You can listen to the automatic 911 call one of the roller coasters induced in Joanna’s tweet: But it turns out roller coasters have the critical attributes to trick the algorithm which takes into account G-force measurements, pressure changes, GPS/speed changes, and loud noises. Interestingly, some unofficial tests of Apple’s Crash Detection have trouble triggering the safety feature. Kings Island has seen Crash Detection triggered falsely by the park’s roller coasters at least six different times.Īnd Dollywood has seen the issue enough that it is putting out signs asking people to not bring the devices on rides or power them down.

Reported by WSJ’s Joanna Stern and Coaster101, in the last several weeks, Kings Island and Dollywood amusement parks have noticed a trend stemming from customers with an iPhone 14 or a new Apple Watch. It’s unclear how many times Crash Detection has been triggered at Dollywood while it’s happened at least six times at Kings Island. Update 10/10 5:30 am PT: Joanna heard from Dollywood that the sign below has been used since December 2021 as it has seen riders accidentally pressing and holding the side button on iPhone and Apple Watch and calling 911. Here’s what’s happening and a workaround until there’s an update.

As it turns out, roller coasters have been causing a number of erroneous automatic 911 calls by tricking Apple’s Crash Detection.

But even though Apple uses all-new hardware, an advanced algorithm, and over a million hours of crash data, false positives are still possible. Crash Detection is a valuable new safety feature that’s arrived with the iPhone 14 lineup and the new Apple Watch Ultra, Series 8, and SE 2.

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