When lane markings are not present, you can almost never get the gray steering wheel on the dash in order to activate autopilot. However, I discovered today that if it's already active, in v7.1's autopilot it tries really hard to keep steering, even when lane markings disappear. In fact, since v7.1 came out I don't think I've ever seen the "Take Over Immediately!" warning in the car. To demonstrate, here's some video I took earlier today when I was driving on a rural road. Note that for 100% of the duration of this video, the car is on autopilot (my hands are close to the wheel, ready to take over): (Sorry for the video quality, that's the best you can get out of a Blackvue, then recompressing to YouTube). Notice that when the lane markings disappear, there's a lot more ping-ponging, but the car was still able to stay on the road! I wasn't expecting this, so I thought I'd share. So two observations: -The car will stay on autopilot in places where you wouldn't be able to initiate autopilot, even if it's lost the lane markings for a considerable amount of time, and -I never got the "Take over immediately" warning. In fact, I didn't even get a "Hold Steering Wheel" warning! Anyone else notice this?