Tonight I found that running out of gas in my ZVW30 (2010 Prius) completely removes all traction battery power. There is no motive power to get to a 'safe place' to refill. I was able to coast to a parking lot but basicly: power steering failure icon - this is the only warning light, IMHO, totally inadequate all power indications 'off' - it is as if the car had been shifted into "N" shifting to "N", stays in "N" and does not return to "D" I can buy a new traction battery and have no problem with being put in "EV" mode. But the car would not shift into "D" nor respond to "EV." Compared to the NHW20 and NHW11, this means a valuable safety feature has been lost. Trying to run out of gas, on flash, the first time it went: 122.1 mile 56.6 MPG 2.156 gallons, 1.6 gallons in handbook The only indication I got of a problem was "electric steering error" icon flashed up. Not sure what it was, I was going down hill and pulled over into a parking lot and put my spare gallon in. The error indication cleared and I was off to fill-up. Second running out of gas on flash, it went: 132.6 miles 60.8 MPG 2.18 gallons However, this time I had just crested a slope on a limited access road with no shoulders. Fortunately, I had momentum and coasted off the road into a parking lot. Had there been stopped traffic or other hazards, I would have been in a four-lane road, 50 mph (80 kph) with a car totally inert: 34 40' 13.35" N 86 34' 25.67" W - this is on a limited access highway just as I was approaching a merge lane for traffic from Martin Road. During rush-hour, this area is 'stop and go' and having the ability to move through traffic, even if limited EV mode, would be the difference between a safe and hazardous event.Absent a return to a 'limp to the side of the road mode,' I can no longer support running out of gas as "no big deal." In fact, I believe the former behavior of the NHW20 and NHW11, to continue on traction battery, to be a superior safety feature to this "coast to a stop NOW!" behavior: I can buy a new battery even if I damage it getting to a safe place, off the highway. Dead because my Prius stopped on an unsafe place and an accident occurred, it would be hard for the dead guy to buy another Toyota battery or Prius. The accident rate for the Prius would go up and potentially, the insurance rates rise. Worse the Prius will lose the justified reputation for a safe vehicle. Bob Wilson p.s. On the third dry tank, I discovered the arrows in the 'energy display' go away when the engine can no longer run. This is the only indication the car is running on reserve, traction battery power. You have a couple of hundred yards to perhaps a mile before the 'power steering' light comes on and the car becomes an inertial mass . . . no emergency power.