This topic came up in a DashCam thread, but I feel like it is deserving of it's own thread... The Clarity (and other newer Hondas) has an advertised feature called "Automatic Collision Notification". It is described this way: ■ Automatic collision notification If your vehicle’s airbags deploy or if the unit detects that the vehicle is severely impacted, your vehicle automatically will attempt to connect to the HondaLink operator. If connected, information about your vehicle, its location, and its condition can be sent to the operator *1 ; you also can speak to the operator when connected. You can see this, and a few more details in the manual (page 366): What is not clear is whether this function is inherent in the vehicle, or whether it requires the user to have a linked cell phone in order for it to operate. This does appear in the Bluetooth HFL section of the manual, but that is not proof enough for me. I tried (and failed) to find a definitive answer to this with Google. I usually do not carry a cell phone, but if this important (and advertised) safety feature does not work without a phone, maybe I would make it a point to carry one more often. In any event, there is no excuse for this being somewhat of a 'mystery'. Particularly because this could be a life-saving function, and there is no way to "test" it to find out precisely how it works. Anyone know the answer for sure, and/or know of a way to obtain an authoritative answer?