fuel capacity

[Swamped]

With 5500 miles I've had my share of fill ups. While Lexus states a 17 gallon capacity, my TX500h has never taken much more than 12 gallons. Even when the remaining range was 6 miles out only took on 12.6 gallons. Once filled, it will indicate 348 Mike range with 23.1 mpg which comes out to 15 gallons. What are others experiencing?

[kydar]

The most my TX500h ever took was 12.5 gallons, and it was reading about 6 miles to empty.  I understand that they design it to have a reserve, but that's like a 26% reserve...way too much.  Hopefully it can/will be fixed with a software update in the future.