I had my battery replaced last year, and now its giving me the low battery indicator again... these keyfobs only last a year???

About 1year. But i had low bat for 6 month now.

I replaced mine once in 4 years (after the 3rd year). Even then, the original battery still worked but I had the low battery key warning and didn't want to push my luck too far. I think I ran with the warning about 4-5 months before I replaced it. I never had to replace the battery in the wife's iKey (she never really got to used hers either )
I think it all depends on how much we use it and from what distances we frequently use them from outside the vehicle.
I very, very rarely use the key to lock/unlock the doors.

I've only replaced mine twice in a little over 4 years. One thing that I think is a major factor, is whether or not it's getting buttons pressed while you're carrying it in you pocket or wherever. I am often surprised to hear my lock/alarm chirp on my car when I'm in the garage working on something or out in the yard doing something. Based of the frequency of that alone, I figure the buttons must be getting pushed all the time and I just never know it. I know my spare key still works and it's had the same battery since new.

Is there any tsb on this? I ask because the previous owner took the car in under warranty for the same issue.... I dont know if this is normal or not.

Was it for THAT issue, or just the old recall on the keyfobs?

meaning this one: ITB07-026a Service Campaign

^ probably the old cell phone/ikey program wiping issue

edit...wow you are a quick VQ

Yea if you worry with that low batt indicator in the dash you'll be replacing batteries quite often. My deal asked me about 7 months if I wanted to replace it for $7. I laughed and said no thanks. I was really thinking how stupid do they think I really am to pay $7 for a $2 battery.

Did you say 4 yrs?!? Now i am going to put it off even longer now

mine does the same - but I think leaving the keys in my pocket while out is probably pressing on buttons and wearing it out faster maybe?

maybe, maybe not. I say if it starts to fail, use your manal key to get in the car. Who knows, you might get lucky and start the car and just drive to radio shack to get a new battery.

Also be sure to replace with a FRESH battery. Some stores roll inventory faster than others.

What kind of battery is it, and where do you get one?

If you have an owners manual..it's in there.
CR 2032