The recall has been removed from nhtsa's site. Also, why is it completely impossible to search for recalls except by specifying a VIN, or make and model and model year and model AND keywords? The system seems expressly designed to discourage or prevent someone from seeing all recalls for a particular model or series, like, say, if they're shopping around and want to see which vehicles have had the most recalls.
It is truly amazing that Tesla has managed to fuck up what is (and must be) the simplest and most reliable part of a semi truck.
Wanna bet that instead of the thing on the dash being a mechanical valve, it's actually a button that actuates an electronic valve elsewhere, because some idiot Tesla engineer thought it would be smarter?