If all the Supercharger stalls are in use at a location, it would be nice to get an idea of how long it may be until one is available.
While we can’t guess what an owner may be doing or how long they may take, in most cases, when the car is charged, the owner will return.
The change would allow any Tesla owner with a FOB to press the supercharger cable button on anyone’s car. The inside instrument display would appear, just like when an owner sees it and leaves it up for 30 seconds. That allows another Tesla owner (but only another Tesla owner) to get an idea of when the car should be done charging.
For someone who is really concerned about privacy (I can’t think why), this option might have an option to allow/disallow, but I think that would not be necessary.
A plus would send the owner an SMS or the app a note that someone checked the time left, presumably because they are waiting to get a slot.
Implemented in May-2021. When full, on the map, a clock face appears instead of the available stall count. Selecting it shows a rough estimate of the wait time as Short, Medium, or Long wait time. Presumably, Tesla is detecting how many Tesla cars are nearby the Supercharger when all stalls are in use.
I can see where you are coming from but there should really be better ways to achieve the same and more. For a start, this information should be available for every supercharger that is displayed on the Model S' screen or app, allowing to check in advance without having to physically show up at the supercharger site.