The City Assist Pack includes assistance functions designed specifically for urban traffic. Intersection assist helps you on busy and blind intersections. When changing lanes, side assist alerts you to traffic in the next lane. The exit warning alerts you to vehicles driving past at the sides when your vehicle is stationary. Rear cross-traffic assist warns of vehicles that are crossing behind the vehicle when reversing (e.g. out of a parking space). Audi pre sense rear and Audi pre sense side detect potential collisions and initiate safety measures such as optimising the seat position.