My brake light has been going off and on, mostly on for the past couple months. I took it in, and was told the brakes were fine, and topping off the brake fluid turned off the light.

The next day, it came back on. I checked the brake fluid, and it was completely full. I tightened the cap and the light went back off again. Same thing a couple days later. The light is back on and the fluid is full. Any suggestions?