67 Miles To 0 Miles In One Hour In The Driveway

[ltgfrk]

Had our P85 since Jan 2013 and I’ve never seen anything like this. Early this afternoon I checked on it via the app and saw there was a software update available, so I installed it then. At that point the car had 67 miles of range. After the update was complete, still 67 miles. Went to meet my wife at the supercharger nearby and when I got in, it was on 0. Never having been in that situation I thought I could move it to where I could plug it into one of my 48 am charger's. The car let me put it into reverse so I could roll out into the street and that was it. Plugged it into a 110v 2 hours ago but it’s certainly being drained faster than the energy going into it, as it’s still on 0 while showing that it’s charging at 110v/12 amps. Has anyone heard of anything like this? The worst part is that the wait to speak with someone is more than an hour, although this is not a surprise as we’ve seen Tesla service go from fantastic to atrocious over the years.

 

[gde_eu]

Never heard about that but did you try a reboot ? The software is maybe stuck in a power hungry cycle indeed using more power that the plug can provide.

 

[ltgfrk]

Never heard about that but did you try a reboot ? The software is maybe stuck in a power hungry cycle indeed using more power that the plug can provide.

Tried that. The car would not reboot.

 

[gde_eu]

Try holding the two wheel for a "very" long time. If the car is in an infinite loop it can take a while to react. Is the screen responsive ? If yes, did you try the power shutdown from the menu ?

 

[ltgfrk]

Try holding the two wheel for a "very" long time. If the car is in an infinite loop it can take a while to react. Is the screen responsive ? If yes, did you try the power shutdown from the menu ?

Tried both. Tried holding the two wheel buttons for 3-4 minutes. Nothing.

 

[croman]

Does your MCU power on? If so you can select the "power off" option in the menus and then turn it on with the brake pedal later after 2-3 min.

 

[ltgfrk]

We managed to get the car in the driveway and onto the 40 amp charger. It went well for the first half an hour or so but the charging slowed. The Remote Tesla app was reporting that it’s a 46kwh battery..... and dropping. The charging was completed, per the Tesla app, at 13 miles. We will see what Tesla says.

 

[Sig72]

Holy crap. What software update number? P85 owners may want to avoid it

 

[Uncle Paul]

Sounds like some problem with your charging system. Call Tesla. Perhaps they can remote diagnose/repair.

 

[ltgfrk]

Holy crap. What software update number? P85 owners may want to avoid it

2019.32.2.1 but I think the software update and the battery problems were just a coincidence. The car is now a brick even though it was plugged in all night.

 

[Seattle]

Could be the mmc flash memory dieing. Mine died at about 4.5 years, I had to get a new mcu.

 

[murphyS90D]

My 2016 S90D dropped to 100 miles maximum while sitting in my garage with 920 miles on the odometer. They came and loaded it onto a trailer and after analysis at the SvC installed a new battery in the car. It took a week for the new battery to be shipped to the east coast.

 

[ltgfrk]

My 2016 S90D dropped to 100 miles maximum while sitting in my garage with 920 miles on the odometer. They came and loaded it onto a trailer and after analysis at the SvC installed a new battery in the car. It took a week for the new battery to be shipped to the east coast.

Mine ended up being the battery as well and it’s also supposed to be 1 week to get the battery to the east coast, which is tomorrow. It'll be interesting to see what size they put in it.