It's funny you say that--I thought it was just me! I back out of a particular parking spot where you have to drive in and then back out, and you're coming out blind with cars coming quickly down the road. My old car would warn me long before I could see cars coming down the road (I guess bouncing some kind of a signal underneath the surrounding cars?). NOTHING on the Tesla. With all the technology on this car, it didn't dawn on me that the lack of a rear cross traffic alert would be a design "feature". I just assumed it wasn't as effective as the one on my last car. That's the biggest safety feature I miss (apart from the corner lights that would come on when I was turning--the blind spot feature was nice, but I never really used it).