I have AP 2.5. My model s has had the air suspension light but also major issues with adaptive cruise control since friday's update. 3 or 4 times in the last few days I had to slam on the breaks while on autopilot when realizing the car wasn't going to stop on time. This didn't happen at all the last 4 weeks I've had the car. I kept using AP but on high alert and 99% of the time it was fine, but those 3 or 4 scares are enough to make me lose trust and keep my foot always hovering on the break. I can be ok with carefully monitoring autosteer, but ACC HAS to work!!! Anyway, hoping this update fixes it.
Otherwise, I LOVE my model s. Never had a more amazing experience in a car.