I just got the ARB7 OTA update!

[Alib]

First Post (by an attorney): While there are certainly engineering reasons for the update. Let's be clear, there is a significant legal aspect. The supply of Nickel Manganese Cobalt battery modules in a J1 battery pack will soon be exhausted as LG no longer produces them. Porsche will not incur billions of Euros to crack open every battery under warranty, remove and replace defective battery modules, and take days to do so. They intend to gauge battery health before any issues arise. When a problem arises, they will remove the entire battery pack and replace it with a reconditioned pack from third-party companies, which will typically include a mix of J1 and J1.2 battery modules until all the available J1 battery modules are exhausted. They will eventually use the J1.2 battery pack with software limiting access to the usable battery health that was available in the J1 battery pack. This way, the customer base is taken care of, there is still an incentive to purchase a J1.2 Taycan, and Porsche is prepared for the solid-state batteries that are expected to arrive in the coming years. Like Tesla, Porsche may also choose to offer consumers increased range and/or power through an over-the-air software purchase upgrade. However, this will not occur for years until solid-state batteries enter service. As a result, they take care of the 8-year warranty wall of death that has led to anxiety and massive depreciation while preserving their transition to EVs.

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[D00notD00d]

i've had zero OTA updates on any of this and mines a 2022 model year car.
has anyone else actually had this update? is it america only?

UK has also started.

 

[D00notD00d]

First Post (by an attorney): While there are certainly engineering reasons for the update. Let's be clear, there is a significant legal aspect. The supply of Nickel Manganese Cobalt battery modules in a J1 battery pack will soon be exhausted as LG no longer produces them. Porsche will not incur billions of Euros to crack open every battery under warranty, remove and replace defective battery modules, and take days to do so. They intend to gauge battery health before any issues arise. When a problem arises, they will remove the entire battery pack and replace it with a reconditioned pack from third-party companies, which will typically include a mix of J1 and J1.2 battery modules until all the available J1 battery modules are exhausted. They will eventually use the J1.2 battery pack with software limiting access to the usable battery health that was available in the J1 battery pack. This way, the customer base is taken care of, there is still an incentive to purchase a J1.2 Taycan, and Porsche is prepared for the solid-state batteries that are expected to arrive in the coming years. Like Tesla, Porsche may also choose to offer consumers increased range and/or power through an over-the-air software purchase upgrade. However, this will not occur for years until solid-state batteries enter service. As a result, they take care of the 8-year warranty wall of death that has led to anxiety and massive depreciation while preserving their transition to EVs.

As failure is apparently more likely when charging at rapid speeds above 80%, reducing usable capacity could reduce failure incidents. Post BMS monitoring update, it may be worth watching for any range degradation.

 

[snstevens]

First Post (by an attorney): While there are certainly engineering reasons for the update. Let's be clear, there is a significant legal aspect. The supply of Nickel Manganese Cobalt battery modules in a J1 battery pack will soon be exhausted as LG no longer produces them. Porsche will not incur billions of Euros to crack open every battery under warranty, remove and replace defective battery modules, and take days to do so. They intend to gauge battery health before any issues arise. When a problem arises, they will remove the entire battery pack and replace it with a reconditioned pack from third-party companies, which will typically include a mix of J1 and J1.2 battery modules until all the available J1 battery modules are exhausted. They will eventually use the J1.2 battery pack with software limiting access to the usable battery health that was available in the J1 battery pack. This way, the customer base is taken care of, there is still an incentive to purchase a J1.2 Taycan, and Porsche is prepared for the solid-state batteries that are expected to arrive in the coming years. Like Tesla, Porsche may also choose to offer consumers increased range and/or power through an over-the-air software purchase upgrade. However, this will not occur for years until solid-state batteries enter service. As a result, they take care of the 8-year warranty wall of death that has led to anxiety and massive depreciation while preserving their transition to EVs.

I personally see this as a reasonable strategy.

• Monitor starting ASAP.
• Update the BMS software to be smarter and detect anomalies to allow for preventive repairs.
• Provide no cost replacement battery packs when needed.

For those who didn't read the post by @gtm above, shown below is further information on the distinction between ARB6 and ARB7. I agree that this is confusing. Here is my recent history in a nutshell -

• 12/11/24 - Received ARB7 recall notice and contacted my dealer
• 3/22/25 - Installed OTA update to monitor battery health
• 4/25/25 - Received email from Porsche to be sure to enable OTA updates for the update I already installed (Remote Battery Monitoring)
• 4/28/25 - Received confirmation from dealer that Battery Monitoring was active and not showing any issues.
  • The dealer said ARB6 was still active so I checked my VIN online at NHTSA Recall portal it shows ARB6 active, although my original recall was ARB7.
  • Email from dealer
  • 
    
    
  • My takeaway is that the monitoring required by ARB7 is active, but that my battery is still on the list of those that potentially need repairs.
• 5/29/25 - UNRELATED TO ARB6/ARB7 - Purchased the Porsche Extended Warranty 48mo/60,000 (total miles) Platinum coverage for $4,776 USD + tax.

Just for the record, I now charge to 85% at home and sometimes go over 90% at DC Fast Chargers.

------------------------------------
ARB6 vs. ARB7

• ARB6: Applies to vehicles for which Porsche does not have sufficient battery data to assess for anomalies. These cars require in-person diagnostic checks at dealerships.
• ARB7: Applies to vehicles where Porsche has sufficient data (often via over-the-air monitoring) and currently sees no anomalies, but cannot guarantee future safety. These cars are monitored remotely, and owners may be notified if issues are detected.

 

[D00notD00d]

Regarding longevity and residuals, and what’s next after battery recalls.

As failure is apparently more likely when charging at rapid speeds above 80%, reducing usable capacity could reduce failure incidents. Post BMS monitoring update, it may be worth watching for any range degradation.

Europe & the UK has now changed Porsche Approved warranty scope to include follow on cover after 8 years for HV battery manufacturing defects, whilst excluding normal ageing/wear and tear. What constitutes normal is unclear.

It is reasonable to assume that failure of a limited number of cells/modules whilst others remain healthy is not normal wear and tear and is evidence of premature failure/a manufacturing defect.
My experience of a random PSCB premature failure, contrary to claimed durability/longevity benefits, whilst other disc surfaces remain healthy, is that Porsche warranty administrators cannot be relied to make decisions on a ‘reasonable doubt’ or engineering basis. But the logic used seems inconsistent. On my 911, a set of shock absorbers was replaced under the extended warranty because a single shock absorber was defective.

Another unknown is what constitutes normal wear and tear and what follow on warranty cover is provided for PHEV/EV components such as propulsion motors, controllers, inverters, charging systems, the BMS, thermal cooling etc. Failure of such components could be just as expensive as replacing an individual HV Battery Module, and just as impactful upon residuals/economic repair. Porsche has a monopoly on repair costs and expertise.

Currently in Europe/the UK Porsche dealers are content to retail high mileage ICE cars above 10 years old. Cars can be warranted up to 15 years old. That underpins residuals and therefore customer retention/brand loyalty. As well as this used sales revenue, warranty repair work is also a significant dealer revenue stream.
Will Porsche dealers want to retail EVs above 6 years old? If not that will have an adverse effect on residuals relative to their ICE cars. My 7 old Cayenne has depreciated much less than my 4 year old Taycan.

 

[Alib]

A modern EV is a computer on wheels that generates a lot of data. It all goes back to the Volkswagen Group, which manages the fleet of its EVs. All that data is not just about battery health or even wear and tear; it is also about individual drivers. You must relinquish a certain amount of your privacy rights to be monitored. You are essentially the guinea pig as they build a profile around not just the vehicle but how you interact with it. Never forget that this is a business and bean counters are making decisions. The data you provide may be beneficial to the process, but it may also be a double-edged sword that can cause harm.

 

[TaYcanAficionado]

Apart from the 2021 taycan 4S, I also own a 2019 jaguar i-pace; a similar update was rolled out around two years ago (was around June 2023, if I recall) for the i-pace and what it did was to check the battery more thoroughly and report problems with modules. If it did find any bad module(s) , it automatically limited charging to 72%. The i-pace was also using LG modules like the taycan.

It's an educated guess that the "new" taycan software does pretty much the same thing, i.e. check the battery more thoroughly and if anything is not as it should be, it will immediately limit charging to 80% and "send" you to the dealer to replace bad modules.

By the way, when the above happened to my i-pace, two modules were flagged as "bad", I got them replaced free of charge at the dealership and the car has been trouble-free for over 18 months now; 55k miles driven so far.

Despite the modules being somewhat different in the taycan and the i-pace (although they are both NMC pouch cells, so not THAT different), to calm people down, my i-pace experience is that the problem might not be as bad as people tend to think. There have indeed been some bad cell batches from LG and once these are found out and get replaced, you should be good to go.

What I know from several i-pace owners through the forums was that the software tended to identify bad cells when charging to 100% - not so on lower SoC. ASSUMING that we are dealing with a similar situation with the taycan, my advice would be to charge enough times to 100% after the new software is installed and check whether you get any error messages. If you charge 4-5 times to 100% and don't get any flags, you can assume that your battery is fine.

By the way, having both cars in my garage, I can say that the jaguar i-pace is still a tremendous machine, despite the bad publicity because of the LG battery problem. I actually enjoy driving both of them.

 

[Brombaer1971]

Why not simply wait what happens ?

 

[gatorfast]

How does one know if your car is able to receive an OTA? Do I need some sort of wifi or other data connection/service?

 

[hifi239]

As a result, they take care of the 8-year warranty wall of death that has led to anxiety and massive depreciation while preserving their transition to EVs.

Can we all please agree never again to use the phrase "8-year warranty wall of death"
But seriously, isn't this a safety recall to prevent battery fires? Would not the replacements then continue after 8 years - pretty much forever for vehicles with J1.1 battery modules that are still on the road?

 

[ChrisLA]

Hey my ARB7 recall is now removed from the recall site!

Nothing on there but the passenger seat thing now.

There's a recall site, customized to each vehicle? How do I access it?

Thanks,
- Chris

 

[ChrisLA]

There's a recall site, customized to each vehicle? How do I access it?

Thanks,
- Chris

Ah, just to answer my own question, and in case anyone else was wondering...

https://recall.porsche.com/prod/pag/vinrecalllookup_V3.nsf/VIN?ReadForm&c=usa

 

[snstevens]

How does one know if your car is able to receive an OTA? Do I need some sort of wifi or other data connection/service?

Use your My Porsche app; click on vehicle details, then Functions;

How does one know if your car is able to receive an OTA? Do I need some sort of wifi or other data connection/service?

Use the "My Porsche" app.

• Click on "Vehicle details"
• Click on "Functions"
• Scroll to bottom and click on "Online software update". Check that the switch is turned ON.

 

[Jagu]

The dealer installed my update last week while installing my $4000 windshield. lol.

 

[gatorfast]

Use your My Porsche app; click on vehicle details, then Functions;

Use the "My Porsche" app.

• Click on "Vehicle details"
• Click on "Functions"
• Scroll to bottom and click on "Online software update". Check that the switch is turned ON.

Appreciate the info. I do not see that option listed for me in the My Porsche app so perhaps my vehicle does not have that capability?

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