TL;DR: Tesla is removing radar from vehicles to transition to a vision-only system. They will ship vision-only cars before NHTSA has tested them, so the NHTSA can't certify untested vehicles. > Newer Tesla Model 3 and Model Y vehicles will no longer be labeled as having some advanced safety features after the automaker said it was removing radar sensors to transition to a camera-based Autopilot system
Notably, even Tesla says that the vision-only cars will ship with reduced safety features which they’ll backfill later via software update. Given how long they’ve been promising that the FSD beta rollout is right around the corner, I’m not holding my breath.
Tesla says that software update will be provided in the future that will enable these features using vision cameras (previously radar was used).
NHTSA certified the radar solution and it didn't certified whether the vision one is as safe.