Reserve tank

No,someone was lying to you.

There is only one gas tank, it's 15 gallons. Low fuel indicator will chime when you get down to 3 gallons left, then again 2 more times at 1.5 or 2 gallons. Tank will read "empty" but there will be 1.5 gallons left. That's not exactly the same as a "reserve" tank. (in other words, if you just hit "empty", you would only be able to pump about 13 gallons into tank.)

Precisely best answer I've seen. Don't bother with Hayes or Chilton's certainly don't call the Fiat dealer.