Large trucks often run close to the left side of their lane, and often the Tesla does not see the trucks trailer until almost up underneath it when in an adjacent lane. I often disable auto-steering and move to the opposite side, although once detected the tesla can do so likewise, but I prefer not to wait until the vehicle is that close to such a large object. The other reason the car may hug the right lane is that the truck actually obscures the view of the right side lane, making the car begin to hunt for the right lane, inching closer to the truck instead of avoiding it. That is why I would like a preference setting.