near the end of my first tank of gas in my 2004, the last green bar at empty began flashing. I filled up about 10 miles later. it only took 7.2 gallons. i was happy that my mileage was pretty good (about 55.5mpg on the 7.2 gal), but dissappointed that it would start flashing at me with 150 miles left to drive. Is there another warning that comes up when the fuel is actually low? by the way, i love this car. i rented one in illinois and my (minivan, luxury car, suv and truck loving) relatives loved this car. i've had dozens ride in mine, and 4 others drive it. they all love it. it's been a non-stop little happy party on wheels. the only people who don't seemed thrilled are those who just bought a (sadly inferior) new car that is Not a prius. it's hard for them, but they still manage to be happy for me.