I have my stock brakes still on, original pads ect.. I have noticed that when i brake really really hard my brake light comes on. The pads seem fine, and there is no grinding noise at all. Rotors are celan as well. I figured it may be the ABS.. Any idea what good be causing this?
Yep, if the fluid level is a little low and the pads are worn down a bit, those go hand in hand generally (dont assume this to be though - thoroughly inspect for leaks and other issues!).
Renewing the pads should displace fluid back up into the reservior.