Did you actually check the brake fluid and make sure it was still full? Sounds like an ABS wheel sensor or the wiring for it. If the wire gets disconnected it can make those warnig lights go on. I have also seen a bad battery make the ABS and brake warning light come on also. If you have an ABS problem, the traction control will not work until the ABS is fixed.
The Hot Rodders Prayer:
As I lay rubber down to street, I pray for traction I can keep, but if I spin and begin to slide, please dear God protect my ride. -Amen