Newbie here, first time Tesla. I have recently purchased a 2017 Tesla Model S 75 rwd. it has autopilot 2.0 and NVIDIA Tegra infotainment. Autopilot does work, however when I turn the car following nob on the autopilot stem, nothing happens and the car does not adjust speed no matter how close I get to another car. I have attempted a couple of times now to recalibrate the cameras. it seems to accept the request but I see no status on the infotainment screen to tell the progress of the recalibrate. I would guess I am nearing the 80 mile mark by now in pretty good phoenix traffic. when I first started the calibration I noticed the instrument cluster did not 'see' any other cars or objects. as the days have gone by it is learning and seeing cars and even cones now. once it even turned a potential collision car red and made an audible beep. My question for you all here, and pardon my ignorance, should car following work? have I waited long enough for camera callibration? should I see a progress of how the calibration is coming? videos I found for other models have a progress steering wheel that turns blue when done. I have searched very hard for any info on these questions and find nothing for camera calibration for this year model S. thank you all for any help you can provide.