My town & Country Van is just fine I had it checked and the brakes were fine, but every time I brake the signal light and sound come on. What could be causing this
Have the bulbs for the brake/signal lights checked. These are dual filament bulbs, and if one filament in the bulb is touching the other, it supplies power to that circuit causing the signals to function when the brake lights come on.
I believe you are referring to the lamp on the cluster/instrument panel. If so, the lamp is illuminating because there is not enough brake fluid in the reservoir. It is normal for the fluid level to drop as disc brake pads become worn. Top off with brake fluid.