14.0 gallon for 2005 models.
There ya go:
http://img212.imageshack.us/img212/2959/cimg0583ld9.jpg
I drove 25 miles or so after the low fuel warning and it took 11.5 gallons, so there was about 20% left, although the fuel pump is cooled by fuel, tapping into the last two gallons of gas on regular basis might stress the pump.