2004 chevy 4x4

When driving abs& brake light comes on, there is no problems with the brakes. I turn the ignition off and lights go off until next time. sometimes they come back quickly or it could be a month. Any ideals?

The ABS light is telling you there is a problem with the ABS system. The brake light may be due to low brake fluid or a pressure differential problem with the master cylinder. The problem may be linked together. Next time they go on, get the ABS codes read. It will probably help pinpoint the problem.