Remote_start failed

[Mark612]

We run this command every morning. Remote start. About 25% of the time the car does not start and we get this error:

_File "/usr/src/homeassistant/homeassistant/components/button/init.py", line 132, in async_press_action
await self.async_press()
File "/config/custom_components/subaru/button.py", line 146, in async_press
await async_call_remote_service(
...<6 lines>...
)
File "/config/custom_components/subaru/remote_service.py", line 111, in async_call_remote_service
raise HomeAssistantError(f"Service {cmd} failed for {car_name}: {err_msg}")
homeassistant.exceptions.HomeAssistantError: Service remote_start failed for xxxxxxxxx: Remote service request completion message never received

[jamietre]

I've only started using this in the last few weeks, but it has been reliable until yesterday. Since then all remote starts have failed with this error. Seems like a different issue, but since this was just opened adding detail here.

homeassistant.exceptions.HomeAssistantError: Service remote_start failed for <redacted>: HTTP 500: 
{
  "httpCode":500,
  "errorCode":"error",
  "errorMessage":"java.lang.NullPointerException - null"
} 

RequestInfo(
  url=URL('https://mobileapi.prod.subarucs.com/g2v30/service/g2/engineStart/execute.json'), method='POST',
  headers=<CIMultiDictProxy(
    'Host': 'mobileapi.prod.subarucs.com',
    'User-Agent': 'Mozilla/5.0 (Linux; Android 10; Android SDK built for x86 Build/QSR1.191030.002; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/74.0.3729.185 Mobile Safari/537.36', 
    'Origin': 'file://', 
    'X-Requested-With': 'com.subaru.telematics.app.remote', 
    'Accept-Language': 'en-US,en;q=0.9', 
    'Accept-Encoding': 'gzip, deflate', 
    'Accept': '*/*', 
    'Cookie': 'JSESSIONID=<redacted>; X-Oracle-BMC-LBS-Route=<redacted>', 
    'Content-Length': '468', 
    'Content-Type': 'application/json')>, 
    real_url=URL('https://mobileapi.prod.subarucs.com/g2v30/service/g2/engineStart/execute.json')
  )

[rstremke]

Also had remote start failures all day, today. Tried at least a dozen different times in the past 12 hours just to check. Seems like a nondescript error. Even the logs aren't very verbose. Remote start works fine via the mySubaru iOS app on my phone.

"Service remote_start failed for Ryans Outback: aiohttp.ClientConnectionError"

[Mark612]

They may be making changes.

https://techcrunch.com/2025/01/23/hackers-found-a-way-to-remotely-unlock-start-and-track-millions-of-subarus/

[jamietre]

They may be making changes.

Yeah, though the android app has not been updated since November 2024. That doesn't mean it's impossible they improved some security mechanism without updating the app (like maybe a token expires frequently that didn't used to?) but still strange.

[stboch]

I have remote started several times over the last week, a no issues here. can you submit a diagnostic?

[jamietre]

I have remote started several times over the last week, a no issues here. can you submit a diagnostic?

Be glad to - do you have a pointer to how to do this? This would be my first.

[rstremke]

Probably not diagnostically useful, but just as another data point: I have two Subarus and all their status entities have been unavailable since yesterday. Tire pressure, range, average mileage, etc. They're still all visible on the mySubaru app - just like remote start for me.

If there are any logs I produce to assist, please let me know.

[stboch]

Under the triple dots in the subaru integration you should see download diagnostics.

[rstremke]

config_entry-subaru-fd3e48070efe4d16013fc03e0f5e57ed.json

[jamietre]

Of course when I tried it now it worked fine 😖 It doesn't seem like the error log file includes anything earlier than today. If it happens again I'll definitely grab the diagnostics.

[rstremke]

Everything appears to be working again for me. Diagnostics, remote start, lock/unlock, etc. Didn't even restart HA, so assume it was something on Subaru's side.

[stboch]

Glad it's working. In my past experience the API is buggy at times. I have auto lock automations built in and added logic to check for the errors to ensure the command was executed.

[rstremke]

Glad it's working. In my past experience the API is buggy at times. I have auto lock automations built in and added logic to check for the errors to ensure the command was executed.

Any chance you'd share the logic/code to confirm command execution? Been looking for something like that myself.

[stboch]

You need to create a helper so that the status doesn't get changed when the script fails, then monitor for the completion of the script, if the status is still on the lock event still failed. I don't track what the reason for failure is...
Automation:
`alias: Auto Lock Stevens CarI
description: ""
mode: single
triggers:

• at:
  • "22:02:06"
  • "00:42:08"
    trigger: time
    conditions: []
    actions:
• action: input_boolean.turn_on
  metadata: {}
  data: {}
  target:
  entity_id: input_boolean.subaru_status
• action: script.turn_on
  target:
  entity_id: script.lock_stevens_car
  data: {}
• wait_template: "{{ is_state('script.lock_stevens_car', 'off') }}"
  continue_on_timeout: true
• condition: state
  entity_id: input_boolean.subaru_status
  state: "on"
• delay:
  hours: 0
  minutes: 2
  seconds: 0
• action: script.turn_on
  target:
  entity_id: script.lock_stevens_car
  data: {}
  `
  Script:
  alias: Lock Stevens Car
  sequence:
• device_id: xxxxxxxxxxxxxxxxxxxxxxxxxxx
  domain: lock
  entity_id: lock.stevens_door_locks
  type: lock
• action: input_boolean.turn_off
  metadata: {}
  data: {}
  target:
  entity_id: input_boolean.subaru_status
  mode: single
  icon: mdi:lock

[rhoskins61]

Briefly and just for info, I updated HA to 2025.2 and Remote Start failed. I checked a diagnostic log and it did indicate that that latest version would break the integration. I rolled back HA to 2025.1.x and it started working again.

So, I guess the integration needs an update?

[G-Two]

@rhoskins61 what version of this integration are you using? I am using 0.7.16 under HA 2025.2.1 and have not seen any broken integration messages.

[rhoskins61]

@rhoskins61 what version of this integration are you using? I am using 0.7.16 under HA 2025.2.1 and have not seen any broken integration messages.

You are correct. Didn't receive an auto-update, but performed a manual integration update and everything is back to normal.

Thanks!