So I started up my car this morning to head to school, but as soon as I put it in gear my brake light came on. I did check if it was the hand brake by pulling it up and then releasing but it still remained on. I then opened the brake reservoir, checked the brake fluid (it was max), opened the cap and closed it tight, turned off the car, then pump the brakes 3 times and then turn on car again and the light went away but I still feel a really spongy pedal.

I know bleeding may help but does anyone know why the brake light might have came on in the first place?

 

In my experience spongy pedal + no brake fluid loss = bad internal seals (blow by) in the master cylinder.

 

Whats the temp outside?

 

40 degrees this morning, i'm suspecting that to be the issue too but not sure exactly how they would relate.