New & Confused

[TheFreeze]

Hey all, I'm new here. I mainly created this profile to ask my first question, but I have some follow-up questions and am sure I'll have more in the future.

I have a 2012 Yaris 4-door sedan which I purchased CPO in the fall of 2013. Thankfully, I have only ever needed small parts (a cabin air filter, windshield wipers, and tires), and now I need a new battery. But every time I go to look up my car on a parts store website or even sites like Edmund's, they seem to think there is no such think as a 2012 Yaris Sedan, they only have Hatchback options listed. Edmunds specifically says they stopped making the sedan with the 2012 models... but I have one. So, how is that possible?

Also, I need a battery now and am looking at the Advance Auto Parts website and it's asking if I have a L, LE, or SE. I have no idea what those mean, what the differences are, let alone which one I have. And does it matter for a battery?