I posted this on the model 3 forum. Posting here as well. I was on the freeway with autopilot engaged and was about to get on another freeway ramp. I stepped on the brake to take control and the car started veering left and right and car was making a screeching sound too. Luckily i did not hit any car. It seem to take a while for me to gain some control of the vehicle and has able to park at the side of the free way. When i regained some of my composure i tried to drive again but the car was still veering left and right and still screeching. Error message is "Traction contol disabled contact tesla service" and "Auto Emergency Braking disabled"