TJ, you should know better than that, this has come up scores of times.

The RED brake light is triggered by the e-brake switch and the fluid sensor in the master cylinder. It doesn't flash, but will come on and go off somewhat randomly when the fluid level is just at the threshold that will trip it. When things warm up the fluid expands enough to raise the level and turn it off.

The YELLOW ABS light comes on when there is a fault in the ABS system and has nothing at all to do with the fluid level unless the level gets so low that the system can't even function properly (in which case the red light would have been on long beforehand).

Brent