Car won't sleep - 1% Phantom drain per hr

marsarbu said:

This is the 2nd time it happened in a month, the car refuses to sleep. It keeps humming quietly - the sound that it makes after you lock it and walk away. Also, when I open the mobile app it's already connected, usually it takes 5 - 10 seconds.

No, I don't have the phone or key next to it, temperature is around 72F, I don't do anything different. As a result, it drew 9 kw in 24 hours of being parked.

Any ideas?

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marsarbu said:

This is the 2nd time it happened in a month, the car refuses to sleep. It keeps humming quietly - the sound that it makes after you lock it and walk away. Also, when I open the mobile app it's already connected, usually it takes 5 - 10 seconds.

No, I don't have the phone or key next to it, temperature is around 72F, I don't do anything different. As a result, it drew 9 kw in 24 hours of being parked.

Any ideas?

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borski said:

Did you turn keep mode or creature comfort on by accident? Or lose a key fob in the car?

The only time this happened to me, I eventually found my wife’s key fob in the rear footwell, haha

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marsarbu said:

Neither. Wife's key is in the house, no stand-by modes turned on. I turned the WiFi off as well, did a logo reset, nothing.

The interior is also warm, from whatever process is going on. I hope it doesn't catch on fire. That would be the ultimate bug

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marsarbu said:

I logged in, I can see the gRPC json, not sure what to look for tho. Never used this tool before.View attachment 29550View attachment 29551View attachment 29552

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marsarbu said:

Nope, 70F.

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borski said:

And it’s been doing this for 24 hours? If so, time to call service.

(Aside: one of the useful things of setting up Home Assistant is passive data logging. You’d be able to show graphs of battery temps over this time period, etc. I use this all the time to see if the car has fallen asleep or not if I’m doing a reset, when debugging, etc)

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Amrit said:

...constant humming noise from the car and it's draining about 25-30 miles of range overnight.

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Tâm said:

Thermoregulating your main battery costs lots of energy. Is your parking place hot?

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marsarbu said:

No, it's 68 F now outside. There's something wrong with the car. In 24 hours the range went from 470 to 405 miles.

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suchluke said:

I did notice similar behavior with my car where the car would not go fully to sleep on multiple occasions. My theory after observing and trying to narrow it down that this is related to the most recent phone app update. I am using android app version 2.4.0 (3885). When I fully open the phone app and wake up the car in several occasions car would not go to sleep. I also notice that the app would change phone battery to "unrestricted". I think because of that plus the phone being in close proximity to the car it keeps the car in monitor state causing battery to drain. Only after I force stop the phone app and change the setting to restricted for battery management the car would go to sleep. I have passive unlock disabled in the car. Using key fob or pressing door handle to unlock.

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pyle112 said:

I wonder if this is related to the incessant charging notifications. If the car keeps waking up then that explains the cadence.
Thread 'Charging notifications incessant' https://lucidowners.com/threads/charging-notifications-incessant.12527/

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