Right now none of the native clients support SSO. It is a frequently requested feature but, unfortunately, it doesn’t look like it will be implemented any time soon. As with many OSS projects it is probably a case of “you want it, you build it” - but nobody has actually stepped up.

For web access, stick it behind a reverse proxy and use something like Authentik/Authelia/SSO provider of your choice to secure it.

For full access including native clients, set up a VPN.

Oh fuck me, HOW in like 25 years did I not get that pun?!

Something to note: Tesla has two vehicle APIs, the Fleet API for commercial accounts and the Owner API for individuals. This change currently only impacts the Fleet API.

If you are an individual owner who accesses your vehicle data from the Owner API (usually via a self hosted tool like TeslaMate), this does not affect you. Yet.