Tesla: <i>&quot;the incident occurred as a result of the driver not being properly attentive to the vehicle&#x27;s surroundings while using the Summon feature or maintaining responsibility for safely controlling the vehicle at all times.&quot;</i><p>That&#x27;s the &quot;deadly valley&quot; I&#x27;ve written about before - enough automation to almost work, not enough to avoid trouble, and expecting the user to take over when the automation fails.  That will not work. Humans need seconds, not milliseconds, to react to complex unexpected events. Google&#x27;s Urmson, who heads their automatic driving effort, makes this point in talks.<p>There is absolutely no excuse for an autonomous vehicle hitting a stationary obstacle.  If that happened, Tesla&#x27;s sensors are inadequate and&#x2F;or their vision system sucks.