Monte Carlo Message Center Help?

I drive a 2001 Monte Carlo and a weird orange message won't go away when I turn it on. It looks like it could mean check tire pressure or something, but I have and it's fine. It won't go away either. Suggestions? Maybe I'm mis-interpreting it or something. Today it briefly flashed "TC" but only once and it hasn't showed up again. I'm baffled as to what this could mean lol.