ABS, traction, and Brake on. Leaning toward a module or wiring issue at module. Like Eddie said check around your speed sensors/wiring visually for torn or loose wiring, and/or check for codes for the sensors themselves. I've found good luck at Oreillys (they have more than just OBDII powertrain scanner capability). Did these lights come on after any wheeling or going through water? If they came on after any water crossings, I would check around your traction control module and sensors for any water intrusion or corrosion (I do not know where the module is located on a JK). The red brake light itself usually indicates a)low fluid level, b)hydraulic pressure loss or leak, c) ebrake staying engaged or brake switch issue. Being that the light is on along with the ESP and the ABS, it's likely more of an electrical issue like a sensor or module.