there is no button that I am aware of... when the ABS light comes on, it means there is a fault in the system and the ABS is not functioning. Usually in the accords, if the ABS light comes on, it is due to a faulty wheel sensor. Autozone, I believe, can diagnose the car for free and tell you which sensor is bad. The sensors are only available as a Honda part... no aftermarket ones available.

To reset the light, the problem has to be fixed.