Shows up when I floor the loud pedal. Car flys off & up comes the brake warning lite. Is it just low fluid slewing to the back of the resevoir (lowering the float warning switchy thing?). My discs are a bit (very) worn so changing the discs Mite sort that as I'll have to sqeeeeeeeze the pistons back in. I know you lot are just going to say check the fluid level, I have, seems ok.