WHILE DRIVING APPROX. 55 MPH DOWN PAVED ROAD JEEP SUDDENLY BEGAN CONSTANT HORN HONK, WIPERS STARTED GOING, EVERY DASH LIGHT CAME ON(ABS, ENGINE, AIRBAG, ETC). THIS CONTINUED FOR ABOUT 1 MINUTE THEN STOPPED. WE TURNED AROUND TO GO BACK HOME AND ABOUT 2 MINUTES LATER SAME THING BEGAN AGAIN. THE SECOND TIME, ALONG WITH ABOVE SYMPTOMS, WE BEGAN TO LOSE POWER AND WERE UNABLE TO ACCELERATE TO MAINTAIN SPEED. WE PULLED OFF TO THE SIDE OF THE ROAD AND TURNED KEY OFF. HORN, AND WIPERS KEPT GOING. THEN THE WINDSHIELD WIPER SPRAYERS STARTED SPRAYING CONTINUOUSLY. WE WERE UNABLE TO START JEEP AT THIS TIME. THIS WENT ON FOR ABOUT 3 MINUTES AND FINALLY STOPPED. JEEP THEN STARTED AND WE WERE ABLE TO DRIVE HOME.