Tesla Fleet: Unable to set state of seat heaters

[dr-carrot]

The problem

When attempting to change the level of any seat heater, I get the following error and the seat heater level does not change: Failed to perform the action select/select_option. Assignment not allowed to message field "CAR_SEAT_FRONT_RIGHT" in protocol message object.

What version of Home Assistant Core has the issue?

core-2024.12.5

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant Container

Integration causing the issue

Tesla Fleet

Link to integration documentation on our website

https://www.home-assistant.io/integrations/tesla_fleet/

Diagnostics information

config_entry-tesla_fleet-01JEWAAFX56P4JTYGSN9043CZA.json

Example YAML snippet

No response

Anything in the logs that might be useful for us?

Logger: homeassistant.components.websocket_api.http.connection
Source: components/websocket_api/commands.py:245
integration: Home Assistant WebSocket API (documentation, issues)
First occurred: 2:54:59 PM (1 occurrences)
Last logged: 2:54:59 PM

[139878588038688] Unexpected exception
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/websocket_api/commands.py", line 245, in handle_call_service
    response = await hass.services.async_call(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    ...<7 lines>...
    )
    ^
  File "/usr/src/homeassistant/homeassistant/core.py", line 2802, in async_call
    response_data = await coro
                    ^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/core.py", line 2845, in _execute_service
    return await target(service_call)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 1007, in entity_service_call
    single_response = await _handle_entity_call(
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^
        hass, entity, func, data, call.context
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 1079, in _handle_entity_call
    result = await task
             ^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/select/__init__.py", line 188, in async_handle_select_option
    await self.async_select_option(option)
  File "/usr/src/homeassistant/homeassistant/components/tesla_fleet/select.py", line 153, in async_select_option
    await handle_vehicle_command(
        self.api.remote_seat_heater_request(self.entity_description.position, level)
    )
  File "/usr/src/homeassistant/homeassistant/components/tesla_fleet/helpers.py", line 52, in handle_vehicle_command
    result = await handle_command(command)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/tesla_fleet/helpers.py", line 39, in handle_command
    result = await command
             ^^^^^^^^^^^^^
  File "/usr/local/lib/python3.13/site-packages/tesla_fleet_api/vehiclesigned.py", line 608, in remote_seat_heater_request
    heater_action.CAR_SEAT_FRONT_LEFT = Void()
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: Assignment not allowed to message field "CAR_SEAT_FRONT_LEFT" in protocol message object.

Additional information

No response

[home-assistant]

Hey there @Bre77, mind taking a look at this issue as it has been labeled with an integration (tesla_fleet) you are listed as a code owner for? Thanks!

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tesla_fleet documentation
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[dr-carrot]

I'm not super familiar with python, but it kind of seem the issue is occurring with protobuf here.

[Bre77]

Seat heaters are always annoying. I fully expect this is an issue with the library, and you are probably right about the protobuf as I havent updated it in a bit.

[dr-carrot]

I couldn't resist digging deeper. It seems to me like it's a mutability issue with protobuf. I got it to work by hard coding in the package:

heater_action = HvacSeatHeaterActions.HvacSeatHeaterAction(CAR_SEAT_FRONT_LEFT=Void(),SEAT_HEATER_HIGH=Void())
       seat_position=-1
       seat_heater_level=-1```