Sudden drastic loss of range

Vim Schrotnock

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Sounds almost exactly like the problem that I and a number of other members on this formum have had. You probably have a few bad cells and dropping the charge to below 20% and then recharging was what they told me to do to trigger the error code. I think you’ve done all the right things and your dealer will need to bring in a specialty technician to look at the battery and replace the cell modules or potentially the entire battery.
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Quick update, I drove the car last night and to go 40 miles brought the car from 75% to 19% I charged it overnight and came out this morning to an error "Electrical system error" Park vehicle in a safe place. and the car wont go into drive. I'm waiting on the dealer to get back to me to figure out the next steps.
Nightmare (sorry)!
 

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Quick update, I drove the car last night and to go 40 miles brought the car from 75% to 19% I charged it overnight and came out this morning to an error "Electrical system error" Park vehicle in a safe place. and the car wont go into drive. I'm waiting on the dealer to get back to me to figure out the next steps.
That sounds like some failed modules and perhaps a faulty HV Battery controller. This is exactly the way my car broke down.. Hope you get this fixed quickly
 

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Quick update, I drove the car last night and to go 40 miles brought the car from 75% to 19% I charged it overnight and came out this morning to an error "Electrical system error" Park vehicle in a safe place. and the car wont go into drive. I'm waiting on the dealer to get back to me to figure out the next steps.
Unfortunately that seems to be the only way to trigger the codes. Hope it gets worked out fast for you.
 
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jboardman

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Car has been at the dealer since Wednesday they tell me they will know what's wrong on Monday, They have no loaners cars available so I dont even have a car right now.

I'm probably going to sell it after this, to have a complete failure at 16k miles is just not okay. My Tesla model S went 80k miles before I sold it to a friend and he has over 130k on it with zero issues.
 


Caraholic

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Car has been at the dealer since Wednesday they tell me they will know what's wrong on Monday, They have no loaners cars available so I dont even have a car right now.

I'm probably going to sell it after this, to have a complete failure at 16k miles is just not okay. My Tesla model S went 80k miles before I sold it to a friend and he has over 130k on it with zero issues.
Yes I can understand this, we almost sold ours after our ordeal. Problem is I really do enjoy the car and was able to talk my wife down. Unfortunately the occurrence rate of this seems to be relatively high for full failures. I believe the number is still low in the grand scheme of things but higher than it should be. Wonder what the actual occurrence rate is compared to the 991.1 GT3 engine failures. There are two other huge problems with this for me and that’s repair costs and the only service option is the dealer. Under warranty it doesn’t matter but outside of battery warranty this becomes a huge problem.
 
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jboardman

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Update - getting a loaner tomorrow and they will finally start working on my car, the expect it to take at least 2 weeks.
 


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found out today car has 3 battery modules that need to be replaced. I still don't have a loaner or and ETA on when this will be completed.
Your indications were exactly the same as I experienced, apart from that my car completely stopped with the red failure, just before a long road trip.

Seems a lot of the 2020 cars have this issue, with a few of the modules breaking down.

In Sweden they have or`bandied it so that there are only one or two centres in the country, that can do the repair. The same here in France.

My repair was done in two weeks including all necessary tests and pressure tests etc.

Good luck!
 
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jboardman

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I went to the dealer today to pick up the loaner and they had just finished a 2020 and have THREE others in front of me all with pack failures. The dealer said they have only seen it with 2020s but its a long process per car so Im looking at 3 weeks minimum to get my car back.
 

Vim Schrotnock

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I went to the dealer today to pick up the loaner and they had just finished a 2020 and have THREE others in front of me all with pack failures. The dealer said they have only seen it with 2020s but its a long process per car so Im looking at 3 weeks minimum to get my car back.
Bummer - I feel for you since I had the same problem. One semi-bright spot is you should ask the dealer for the opportunity to speak to the battery technician that they are probably flying in to take care of the modules. I found it very informative, and these guys (only 11 in the country at the time of my repair 6 mo. ago) really know their stuff.
 
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jboardman

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Bummer - I feel for you since I had the same problem. One semi-bright spot is you should ask the dealer for the opportunity to speak to the battery technician that they are probably flying in to take care of the modules. I found it very informative, and these guys (only 11 in the country at the time of my repair 6 mo. ago) really know their stuff.
they have one on staff in Sarasota FL, there is a high concentration of Taycans in the area. They did bring me in shop to see the process that another car was going through.
 

r553

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I have a similar loss of range in my 2020 4S, Performance Plus battery, 32K miles. The dealer says the battery pack has to be removed and sent to a facility in Oklahoma to get repaired. While my car was at the dealer for troubleshooting the battery went completely flat. There were no error messages I could see. It has been very hot in FL.
 

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ehi

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I lost about 15-20% range. service tech says there are no system errors, and says the new tires are probably to blame.

under same ambient conditions I see decreases of
normal mode: 285 -> 245
range mode: 305 -> 250
 

Vim Schrotnock

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I lost about 15-20% range. service tech says there are no system errors, and says the new tires are probably to blame.

under same ambient conditions I see decreases of
normal mode: 285 -> 245
range mode: 305 -> 250
You very well may have a bad battery cell. Take the car down to 10-15% charge and let it sit overnight. If you have a bad cell, this should throw an error code.
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