Proposed change

Tesla has just announced that the old OAuth endpoint is going to be rate limited from August 1st and needs to be replaced. This PR updates the OAuth Application Credential to use the newer endpoint.

home-assistant/alerts.home-assistant.io#668

Fleet API Partner,

Our logs show that your integration is still using https://auth.tesla.com/ for token exchange. As part of our ongoing improvements, we introduced a domain dedicated to Fleet API token exchange with increased rate limits and reliability: https://fleet-auth.prd.vn.cloud.tesla.com/. Please migrate to this domain in the next few weeks to avoid being rate limited.

Action required - Update the domain used for calls to /token endpoints by August 1st, 2025.

No other changes are required - This is a host-only update for token acquisition. Credentials, Fleet API domains, existing authorizations, endpoints, streaming configurations all remain unchanged.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:
• Link to documentation pull request:
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• Link to frontend pull request:

Checklist

• The code change is tested and works locally.
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• Tests have been added to verify that the new code works.

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