Originally Posted by wrxmike
Oddly enough, I think this may be the reason. I've been doing general searches online and other vehicles, from VW to Ford have had issues where the fuel gauge won't move if the key's left in the ignition?!? Talk about firsts...
Well, good excuse to keep driving it around a lot until I gotta fill up again...this time w/the key out of the ignition.
Not sure of the exact thread link, but there are a few people that reported the issue of the computer not reading the fuel when the car was in the ACC position (or on).
If you bring it to the dealer and tell them they might re-flash the car, but it's nothing to worry about. It might go away as well, because those threads seemed to only pop up with newly-purchased imprezas.