Electrical System Error - 11 failed battery modules in 2021 Taycan under 10K miles

[blexfire]

Hi there, first time posting since delving into researching this issue after it popping up on my Taycan about two weeks ago.

Adding to the voices of those that also suffered from this problem. One day I get into my car to go for a drive and I get the red ring of death: electric system error, car will not drive. Dealership diagnosed the error as faults U112300, UCell_UL_Failure_HV_Battery. Noted that 11 modules are failed. I didn't notice any range hit, but I'll admit that I haven't driven it much recently.

Pretty disappointed this has happened with such little mileage on this car, but I am pleased with how quick everything was solved. It was 13 days from calling my local Porsche dealer, to their pickup, whole pack replacement, and subsequent drop off in my driveway.

They said they were going to replace my EVSE but never did that. The invoice stated ABP6 - Supply cable with NEMA power plug but that's something I guess I need to call them about.

Overall, pretty disappointed in Porsche engineering here. I thought I maybe was just unlucky but it seems this is a pretty widespread issue with the Taycan. I have a 2017 Tesla Model X, my daughter has a 2019 Model 3, and my elderly parents are in a 2020 Model Y and although we've had trim issues, the batteries and drivetrain remain reliable. I thought I was going with the safe option by sticking with Porsche after years of 911 and Cayenne ownership, but this looks like it'll be my last.

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[Hirschaj]

Pretty disappointed this has happened with such little mileage on this car, but I am pleased with how quick everything was solved. It was 13 days from calling my local Porsche dealer, to their pickup, whole pack replacement, and subsequent drop off in my driveway.

It sucks that this happened to your car, but it's great to hear how quickly they fixed it. One thing about electronics is that they tend to either fail quickly or last for a really long time.

Overall, pretty disappointed in Porsche engineering here. I thought I maybe was just unlucky but it seems this is a pretty widespread issue with the Taycan.

I think you are misinterpreting whatever data you are looking at. This is not a "pretty widespread issue with the Taycan". Even judging based on the percentages from this forum alone (where many people who have the issue will end up, just like you), it's not that common.

 

[buruburu]

Did they replace the entire battery or replace specific modules? I've been waiting for 3 months for my battery repair. Apparently, there's an utter lack of battery specialist that can perform the work in the Pacific Northwest and we're just waiting perpetually with no ETA on when that will happen.

 

[Scandinavian]

It sucks that this happened to your car, but it's great to hear how quickly they fixed it. One thing about electronics is that they tend to either fail quickly or last for a really long time.


I think you are misinterpreting whatever data you are looking at. This is not a "pretty widespread issue with the Taycan". Even judging based on the percentages from this forum alone (where many people who have the issue will end up, just like you), it's not that common.

The problem is maybe not very widespread, but it is not uncommon either. It is more frequent than we think though. My local service centre have had quite a few of their cars return with the failure. And they are no longer allowed to do the repair locally, but the cars will be shipped to one of two centres in France.

In Sweden there was a similar arrangement with just a few centres specialising on the repairs. Changing modules in the battery requires quite Large areas to have the car and then the batteries for repair and testing, charging etc.

So it is not uncommon for long waiting times for the qualified technicians to perform the work. Once time slots and parts are available they do a turn around of less than two weeks. And there is a lot of processes to go through.

 

[Caraholic]

It sucks that this happened to your car, but it's great to hear how quickly they fixed it. One thing about electronics is that they tend to either fail quickly or last for a really long time.


I think you are misinterpreting whatever data you are looking at. This is not a "pretty widespread issue with the Taycan". Even judging based on the percentages from this forum alone (where many people who have the issue will end up, just like you), it's not that common.

I believ this happens a lot more then you think. Even the forum poll, out of everyone that voted it’s a 42% failure rate. Now I don’t believe it is anywhere near that high but it’s a lot higher then acceptable.

 

[Capt Mike]

One question to all - are the dealers providing good loaner cars durimg those times the cars are under repair. I currently have a 2024 Macan that I can use until the Taycan is repaired.

 

[Hirschaj]

I believ this happens a lot more then you think. Even the forum poll, out of everyone that voted it’s a 42% failure rate. Now I don’t believe it is anywhere near that high but it’s a lot higher then acceptable.

It's certainly possible that it happens more than I think it does, but nobody besides Porsche has that data. If you're referring to this poll with 63 responses then that is a very poor measure of how widespread battery problems are with the Taycan given how many are actually out on the roads.. https://www.taycanforum.com/forum/threads/dreaded-red-electrical-system-error-poll.17184/

Even the anecdotes from a few people about how many Taycans are lined up in front of them waiting for someone with the technical skills to do a battery repair make me wonder if that's a function of how many people are qualified to do the repair and the delays involved with sending them everywhere to do the work.

 

[buruburu]

One question to all - are the dealers providing good loaner cars durimg those times the cars are under repair. I currently have a 2024 Macan that I can use until the Taycan is repaired.

Been in a base Macan with giantic loaner vehicle stickers on both side of the vehicle for the past 3 months now. The part that has been infuriating me has been the endless reasons and lack of any ETAs on next steps. 1) no timeline on when to get the 2 modules in, 2) we're also going to have to replace HV technicians gloves, 3) we're going to have replace out HV technician suits, 4) we're waiting on battery specialist from PCNA, to train our technicians, 5) other dealership has more vehicles waiting so they are getting prioritized, 6) 2 online contact to PCNA goes unanswered, 7) first call to PCNA goes into the void cause they contacted the wrong dealership regarding my case and then no call back.

We're now at the 2nd call which finally got me to a case specialist after the first line PCNA CSR couldn't do anything regarding my case, and then when I had talked with the specialist, they wanted 3-4 more weeks to get back to me.

I've been having a pretty unfortunate fun time with this one, but hey, at least Porsche Dealership gets to have me as a mobile advertisement board.

*sigh.. just frustrated now....

 

[Cwood#44]

One question to all - are the dealers providing good loaner cars durimg those times the cars are under repair. I currently have a 2024 Macan that I can use until the Taycan is repaired.

My High Voltage Charger pooched. 2-3 weeks for the part(s) wait time, but they gave me a 2024 Cayenne loaner. Likely will cover fuel costs while my car is in the shop.

 

[PartTimer]

Hi there, first time posting since delving into researching this issue after it popping up on my Taycan about two weeks ago.

Adding to the voices of those that also suffered from this problem. One day I get into my car to go for a drive and I get the red ring of death: electric system error, car will not drive. Dealership diagnosed the error as faults U112300, UCell_UL_Failure_HV_Battery. Noted that 11 modules are failed. I didn't notice any range hit, but I'll admit that I haven't driven it much recently.

Pretty disappointed this has happened with such little mileage on this car, but I am pleased with how quick everything was solved. It was 13 days from calling my local Porsche dealer, to their pickup, whole pack replacement, and subsequent drop off in my driveway.

They said they were going to replace my EVSE but never did that. The invoice stated ABP6 - Supply cable with NEMA power plug but that's something I guess I need to call them about.

Overall, pretty disappointed in Porsche engineering here. I thought I maybe was just unlucky but it seems this is a pretty widespread issue with the Taycan. I have a 2017 Tesla Model X, my daughter has a 2019 Model 3, and my elderly parents are in a 2020 Model Y and although we've had trim issues, the batteries and drivetrain remain reliable. I thought I was going with the safe option by sticking with Porsche after years of 911 and Cayenne ownership, but this looks like it'll be my last.

Your 13 day turnaround time is impressive. Per other comments on this thread

Hi there, first time posting since delving into researching this issue after it popping up on my Taycan about two weeks ago.

Adding to the voices of those that also suffered from this problem. One day I get into my car to go for a drive and I get the red ring of death: electric system error, car will not drive. Dealership diagnosed the error as faults U112300, UCell_UL_Failure_HV_Battery. Noted that 11 modules are failed. I didn't notice any range hit, but I'll admit that I haven't driven it much recently.

Pretty disappointed this has happened with such little mileage on this car, but I am pleased with how quick everything was solved. It was 13 days from calling my local Porsche dealer, to their pickup, whole pack replacement, and subsequent drop off in my driveway.

They said they were going to replace my EVSE but never did that. The invoice stated ABP6 - Supply cable with NEMA power plug but that's something I guess I need to call them about.

Overall, pretty disappointed in Porsche engineering here. I thought I maybe was just unlucky but it seems this is a pretty widespread issue with the Taycan. I have a 2017 Tesla Model X, my daughter has a 2019 Model 3, and my elderly parents are in a 2020 Model Y and although we've had trim issues, the batteries and drivetrain remain reliable. I thought I was going with the safe option by sticking with Porsche after years of 911 and Cayenne ownership, but this looks like it'll be my last.

Your 13 day turnaround time on fix is very impressive. I had this same issue and it was 8 weeks before I got the car back.
porsche told me they had never seen the issue before (yeah- right!!) and like others on this thread have mentioned it had to be sent off to a specialist centre (in Reading UK) to be fixed.
My loan car - a delightful Audi A5 diesel. Not exactly living the green dream!
If it happens again I’ll be far more pushy on loan car and associated running costs.

 

[raharris]

Regarding : ABP6 - Supply cable with NEMA power plug

They don't have the cables yet; my latest service and heater replacement have that listed as well and its not closed.

 

[gtm]

Been in a base Macan with giantic loaner vehicle stickers on both side of the vehicle for the past 3 months now. The part that has been infuriating me has been the endless reasons and lack of any ETAs on next steps. 1) no timeline on when to get the 2 modules in, 2) we're also going to have to replace HV technicians gloves, 3) we're going to have replace out HV technician suits, 4) we're waiting on battery specialist from PCNA, to train our technicians, 5) other dealership has more vehicles waiting so they are getting prioritized, 6) 2 online contact to PCNA goes unanswered, 7) first call to PCNA goes into the void cause they contacted the wrong dealership regarding my case and then no call back.

We're now at the 2nd call which finally got me to a case specialist after the first line PCNA CSR couldn't do anything regarding my case, and then when I had talked with the specialist, they wanted 3-4 more weeks to get back to me.

I've been having a pretty unfortunate fun time with this one, but hey, at least Porsche Dealership gets to have me as a mobile advertisement board.

*sigh.. just frustrated now....

Three months is more than a little excessive. Time to look into Lemon Law terms in your state. Might get you some attention if you tell Porsche you want to go that route. Might incentivize Porsche to develop an adequate staff and battery inventory if enough people force them to buy back cars. I suppose you can look on the bright side. You will have a very low mileage car, but somehow I doubt you, or any of us, bought a Taycan to have it sit at the dealer's service center.

 

[RoseyPSU]

One question to all - are the dealers providing good loaner cars durimg those times the cars are under repair. I currently have a 2024 Macan that I can use until the Taycan is repaired.

I had to wait for a battery replacement in early 2023. About 4 months in all. Dealer had me in a Panamera 4 the entire time.

 

[buruburu]

Three months is more than a little excessive. Time to look into Lemon Law terms in your state. Might get you some attention if you tell Porsche you want to go that route. Might incentivize Porsche to develop an adequate staff and battery inventory if enough people force them to buy back cars. I suppose you can look on the bright side. You will have a very low mileage car, but somehow I doubt you, or any of us, bought a Taycan to have it sit at the dealer's service center.

Lemon law doesn't apply in my situation due to the length of time and mileage that I have on the car. Trust me, I've already initiated the discussion of a goodwill repurchase, but got stone walled. Been spending the past week basically managing the Dealership and PCNA to get things resolved and had in conversations w/ both parties to set goals and expectations to get the car repaired.

It's been an unfortunate clusterfuck all around and I got to hear from all parties their side of the story. It still annoys me to no end the canned responses that PCNA's specialist gives, their process, and their lack of ability to be efficient in starting multiple actions in parallel. Only goodwill so far that has been extended is a loaner vehicle, compensation to cover my car registration, and a promise that they will do a retrospective on what went wrong AFTER the car has been a repaired and then MAYBE additional goodwill.

The saddest part for me is that given my situation where I now have more understanding in where Porsche is at in their ability and process to support the Taycan, I really can no longer be a proponent of the vehicle.

 

[gtm]

Lemon law doesn't apply in my situation due to the length of time and mileage that I have on the car. Trust me, I've already initiated the discussion of a goodwill repurchase, but got stone walled. Been spending the past week basically managing the Dealership and PCNA to get the resolved and had in conversations w/ both parties to set goals and expectations to get the car repaired.

It's been an unfortunate clusterfuck all around and I got to hear from all parties their side of the story. It still annoys me to no end the canned responses that PCNA's specialist gives, their process, and their lack of ability to be efficient in starting multiple actions in parallel. Only goodwill so far that has been extended is a loaner vehicle, compensation to cover my car registration, and a promise that they will do a retrospective on what went wrong AFTER the car has been a repaired and then MAYBE additional goodwill.

The saddest part for me is that given my situation where I now have more understanding in where Porsche is at in their ability and process to support the Taycan, I really can no longer be a proponent of the vehicle.

Situations like yours suck and Porsche, selling the whole "upmarket, premium" experience, should be ashamed. But they probably aren't. "We can't find and train personnel." B.S. "We can't source enough batteries." B.S. At least they could be honest with you and not give you what seems to be a whole lot of runaround. At the very minimum put you in the model you bought while you wait for a fix. A rolling advertisement Macan is certainly not what you bought.

Wishing you some good luck and a quick resolution to your 3 months in battery hell.

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