[kccqzy]

How does the car know it should unlock when approached by the right person but not a stranger? It has a Bluetooth connection to the phone. For a rental, the person renting probably doesn't have the Tesla app, and it's not obvious how to use the key card.

None of this is easy for a rental. They are only easy for a person who bought the car and owns it.

[vel0city]

On my car the fobs auto unlock the car when approached, you don't need the phone app. There is nothing similar for Teslas? Just the backup card with it's oddities and your phone? Didn't they have that little toy car remote?

[kccqzy]

They do have that remote but since it doesn't come with the car, you can bet rental companies didn't pay extra to provide customers with that fob.