Tesla introduced Autopilot as its advanced driver assistance system in 2014, with features rolling out to Model S and later models through software updates. The short engage chime became familiar to owners as the audible confirmation that steering and speed assistance were active. As Tesla dashcam clips, reviews and ownership videos spread on YouTube and social media, the sound was clipped and shared on its own. It is now used far beyond car content as a generic cue for automation, smart technology and a system successfully turning on.