auto present handles

Hello guys, Is there a retrofit for this? I have the auto-i=unlock feature, which basically means I can walk up to the car with fob in pocket and tap the door handles to unlock the car. I am wondering if I am simply missing the fob antenna's and a firmware update in order to enable...

I noticed something about my Model S’s door locks a few days ago, that might be a defect, or might be a software glitch. Tesla told me to bring it in but before I do, I’d like to see if there is really something wrong with my car, or if other people have the same experience. I decided to try...