ABS malfunction. Power steering and brakes go in and out of operation due to a communication error. All lights come on dash, engine light stays on. Occurs mainly when vehicle is hot during summer or above 65mph highway driving. Safety concern as vehicle power steering is unpredictable during this time. The Drive shaft locks in park and requires manual override when lights are on, but then without intervention, all the lights go away except the engine light and it runs fine. ABS modules are on back order with no ETA because this is a recurring problem for many. Once new abs module is put it, problem can be confirmed and more details can be given by auto repair services.