[defap]

I believe it's controlled by a sort of dead man's switch, i.e. you must continuously hold down a button for the car to move.

[ncr100]

Literally - you stop holding it until after you are dead.

There must be additional safety features in the software to avoid collision with obstacles? Sonar sensors?

[stetrain]

Yes, the 'hold the button' is a final liability layer on top of all of the onboard collision avoidance.

[andrewmunsell]

The newest version of Summon uses the cameras and I'm guessing the ultrasonic/radar to actually avoid obstacles, but is controlled by the app (you have to be holding the button down in the app)

[bobsil1]

Er, the entire autopilot sensor and NN stack…