While driving my anti-lock light and my traction.

While driving my anti-lock light and my traction light comes on and off. I just noticed that the air bag light had blinked on and off too. When I go to press the brake, the Driver Information Center goes dark and then comes back on.
I just had my oil changed and then all these thingsstart happening.
Can u tell me what my problems may be?

Thanks,
Yolie