This morning my car seems to have decided to turn the heater on in rather strange fashion.
I seldom pre-heat my car in the morning. Today I thought I would as it's the first day I needed to drive in to work after having received the latest firmware that does battery pre-heat, and I thought I'd see if I'd get the app indicator it had triggered.
When I opened the app on the phone, I was surprised to see the the heat was already on. What's more, the car's temp was 4 degrees above the set point, yet it was still running. I turned it off from the app.
When I got in the car, I found I had burned 50-60 miles of range in the ~9 hours it had been parked. My assumption is that the cabin heat had been on for some time. I don't know if the battery eater was also on, but I did get power/regen limits on my dash, so if the battery had been heating it didn't get fully up to temp.
Possible causes I checked:
- In-car preconditioning setting: It remains set to OFF as I've had it for months
- My instance of Visible Tesla: I checked my scheduled events, and I have no HVAC events scheduled
-The App: Both my wife and I had our phones charging downstairs while we were asleep
None of the above would explain why the heat was running past the setpoint anyway.
I'm wondering if this is a bug associated with the battery warming logic in the latest firmware. Given that the battery still apparently wasn't fully warmed as well as the face that triggering battery preheat is tied to starting the cabin heat, perhaps there's a condition where it forgets to stop the cabin heater and keep running the battery heater.
I haven't reset my center console yet, because I want to see if it happens again. If so I'm going to see if I can determine how much power it's drawing to try and figure out of the battery heater is also running. I suspect mine could have been going for a couple of hours this morning to have burned that much range... ~15KWh or so?
I'm not posting this in the firmware thread because, although I did get 17.50.2 that was a couple of days ago, so I can't directly tie it to that yet.
I seldom pre-heat my car in the morning. Today I thought I would as it's the first day I needed to drive in to work after having received the latest firmware that does battery pre-heat, and I thought I'd see if I'd get the app indicator it had triggered.
When I opened the app on the phone, I was surprised to see the the heat was already on. What's more, the car's temp was 4 degrees above the set point, yet it was still running. I turned it off from the app.
When I got in the car, I found I had burned 50-60 miles of range in the ~9 hours it had been parked. My assumption is that the cabin heat had been on for some time. I don't know if the battery eater was also on, but I did get power/regen limits on my dash, so if the battery had been heating it didn't get fully up to temp.
Possible causes I checked:
- In-car preconditioning setting: It remains set to OFF as I've had it for months
- My instance of Visible Tesla: I checked my scheduled events, and I have no HVAC events scheduled
-The App: Both my wife and I had our phones charging downstairs while we were asleep
None of the above would explain why the heat was running past the setpoint anyway.
I'm wondering if this is a bug associated with the battery warming logic in the latest firmware. Given that the battery still apparently wasn't fully warmed as well as the face that triggering battery preheat is tied to starting the cabin heat, perhaps there's a condition where it forgets to stop the cabin heater and keep running the battery heater.
I haven't reset my center console yet, because I want to see if it happens again. If so I'm going to see if I can determine how much power it's drawing to try and figure out of the battery heater is also running. I suspect mine could have been going for a couple of hours this morning to have burned that much range... ~15KWh or so?
I'm not posting this in the firmware thread because, although I did get 17.50.2 that was a couple of days ago, so I can't directly tie it to that yet.
