You should have received an email. As for the intermittent check engine light, start by pulling the codes. If you mean that you have an intermittent red brake light or even a yellow ABS light coming on, then first check the level of your brake fluid. If it is low, then top it off. If the fluid is at the top, then make sure that your parking brake is completely released, if that is ok, then have a complete brake inspection performed, including an ABS system scan.