I have noticed on my Audi Q4 in about 4 different occasions that when I applied the brakes in situations like when traffic suddenly stops, the car and wheels shakes in an uneven, irregular way. Like I never expected before in my more than 45 years driving BMW, Mitsubishi, Mazda. Besides that also always noticed that my car reduces the speed almost to stop suddenly when there is a car already moved into the right or left lane (lanes next to mine) such sudden slow down from 50 mph to 0mph causes the cars behind me to stop suddenly and in several occasions almost ending in a rear ended crash against my car. I guess the radar identifies the traffic ahead next to my lane as a traffic in front of my car. Also, even when I am holding the steering wheel with one or 2 hands, frequently I received a message on the dashboard asking me to Please take over steering in yellow color, and if I dont move the steering wheel side to side the yellow warning turns into a Red warning on the dashboard saying Please take over steering and if I dont steer side to side, I get several hard pulls on my seat belt and a load alarm. The only way to avoid such progress of warnings is by steering my steering wheel side to side (zigzagging) on my lane. Who ever see me doing that would think Im drunk or distracted regaining control of my car.