WST2 OTA update

[skipper]

Got an OTA notification yesterday on my J1 Taycan. I have not seen anyone else posting about the WST2 update.
Can anyone share any insights?

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[FlyingPoint]

Per AI:

The WST2 update you’re seeing is not a single feature but a comprehensive software revision that’s meant to:

• Update the PCM and Connect stack (better navigation/charging tools).
• Fix assorted bugs and improve interface responsiveness.
• Add or refine apps and data views.
• Improve integration of Apple CarPlay/nav instructions in instrument/HUD (where supported).

 

[Jasper4S]

Per AI:

The WST2 update you’re seeing is not a single feature but a comprehensive software revision that’s meant to:

• Update the PCM and Connect stack (better navigation/charging tools).
• Fix assorted bugs and improve interface responsiveness.
• Add or refine apps and data views.
• Improve integration of Apple CarPlay/nav instructions in instrument/HUD (where supported).

Thanks for sharing the info!

Where did you find this? I tried googling this update but found nothing. Can it be that AI is making up things? Happy to know it sources

 

[FlyingPoint]

I use ChatGPT ( paid subscription). I don't think it is being made up as most information is sourced. Much of it came from the Taycan forum. Unfortunately, the search engines are not very good on any of these forums. AI reads everything and summarizes.
FWIW, Google is worthless as a search engine. It just points to irrelevant sites in many cases.

Here is the entire response:

There isn’t a formal public Porsche changelog that spells out exactly what “WST2” means in the context of a Taycan J1 software update — Porsche doesn’t publish detailed release notes for the internal build codes you see in the My Porsche app or in dealer service labels. But based on owner reports from the Taycan community and what tends to get bundled in major J1 software updates, here’s what it likely involves:

What the “J1 WST2” (or similar) update actually does

Owners and forums treating the J1-series (first-generation PCM/software architecture) WST2-type updates describe them as major backend software revisions, not single-function fixes. They typically include:


1. PCM / Infotainment Improvements

• Navigation improvements, new filtering options in the charging planner (e.g., show only high-power chargers). TaycanForum
• Better real-time charging info and planner logic. TaycanForum
• CarPlay nav instructions appearing in the dash/HUD (for some builds). TaycanForum
• Bug fixes in UI behavior and responsiveness. TaycanForum

2. New or Enhanced Apps & Display Features

• A “performance” app showing real-time motor power, battery metrics, dynamics data. TaycanForum

These seem to be part of the newer J1.2 software stack and might require a larger flash rather than a small incremental OTA.

3. Charging Planner and Navigation Enhancements

• Filters for charging stations by power, network, 24/7 availability. TaycanForum
• Improved routing logic and minimum power criteria. TaycanForum

4. Miscellaneous Quality-of-Life Fixes

• Improved emergency number setup. TaycanForum
• Bug fixes here and there (e.g., faster album art refresh, minor UI issues). TaycanForum

Important Notes

• Porsche typically doesn’t document WST2 labels publicly, so internal labels like WST2, WRV3, etc., are build identifiers rather than “feature names.”
• Not all features are guaranteed to show up on every car — some are hardware-dependent or region-dependent.
• J1 (the original Taycan software architecture) doesn’t update as fluidly via OTA as Tesla or Rivian; many larger updates still require a dealer service installation. Reddit

 

[Tooney]

The photo in original post describes the update as "high-voltage battery control unit".
That is an ecu located in the "e-box" on the top of the HV battery.

WST2 is likely to be an update similar to WNW2 for the battery control unit, not for "comprehensive software".

Although there is nothing about WST2 at NHTSA so far, that is not unusual because campaigns often get rolled out in Europe before TSBs are published in US.

 

[Jasper4S]

But... It is cool to see another OTA. J1 is still not forgotten at Porsche HQ

 

[Dee]

Per AI:

The WST2 update you’re seeing is not a single feature but a comprehensive software revision that’s meant to:

• Update the PCM and Connect stack (better navigation/charging tools).
• Fix assorted bugs and improve interface responsiveness.
• Add or refine apps and data views.
• Improve integration of Apple CarPlay/nav instructions in instrument/HUD (where supported).

That doesn't make any sense cuz the OTA update is about the High Voltage battery control unit.
AI isn't to be trusted when it comes to these specific kind of things.

 

[Dee]

I use ChatGPT ( paid subscription). I don't think it is being made up as most information is sourced. Much of it came from the Taycan forum. Unfortunately, the search engines are not very good on any of these forums. AI reads everything and summarizes.
FWIW, Google is worthless as a search engine. It just points to irrelevant sites in many cases.

Here is the entire response:

There isn’t a formal public Porsche changelog that spells out exactly what “WST2” means in the context of a Taycan J1 software update — Porsche doesn’t publish detailed release notes for the internal build codes you see in the My Porsche app or in dealer service labels. But based on owner reports from the Taycan community and what tends to get bundled in major J1 software updates, here’s what it likely involves:

What the “J1 WST2” (or similar) update actually does

Owners and forums treating the J1-series (first-generation PCM/software architecture) WST2-type updates describe them as major backend software revisions, not single-function fixes. They typically include:


1. PCM / Infotainment Improvements

• Navigation improvements, new filtering options in the charging planner (e.g., show only high-power chargers). TaycanForum
• Better real-time charging info and planner logic. TaycanForum
• CarPlay nav instructions appearing in the dash/HUD (for some builds). TaycanForum
• Bug fixes in UI behavior and responsiveness. TaycanForum

2. New or Enhanced Apps & Display Features

• A “performance” app showing real-time motor power, battery metrics, dynamics data. TaycanForum

3. Charging Planner and Navigation Enhancements

• Filters for charging stations by power, network, 24/7 availability. TaycanForum
• Improved routing logic and minimum power criteria. TaycanForum

4. Miscellaneous Quality-of-Life Fixes

• Improved emergency number setup. TaycanForum
• Bug fixes here and there (e.g., faster album art refresh, minor UI issues). TaycanForum

Important Notes

• Porsche typically doesn’t document WST2 labels publicly, so internal labels like WST2, WRV3, etc., are build identifiers rather than “feature names.”
• Not all features are guaranteed to show up on every car — some are hardware-dependent or region-dependent.
• J1 (the original Taycan software architecture) doesn’t update as fluidly via OTA as Tesla or Rivian; many larger updates still require a dealer service installation. Reddit

WST2 is more likely a model year-specific update in the recall campaign ARB6/7.
After the installation you'll have a msg in the PCM which will inform you.
Show us that msg instead of using AI.

 

[FlyingPoint]

I did specify it was AI generated. I have to say that when you have a paid subscription, it is fairly comprehensive as a general rule. That said, it could be all wrong.

Interesting that my NAV module has not calculated arriving state of charge in months. It is stuck on 39% all the time. If I receive this update, maybe it will cure this bug.

 

[tigerbalm]

The photo in original post describes the update as "high-voltage battery control unit".
That is an ecu located in the "e-box" on the top of the HV battery.

WST2 is likely to be an update similar to WNW2 for the battery control unit, not for "comprehensive software".

Although there is nothing about WST2 at NHTSA so far, that is not unusual because campaigns often get rolled out in Europe before TSBs are published in US.

The last line of the screenshot looks like it is describing what the update actually does:

"This update improves the display ...."

Scroll down!!!

 

[Sly_North]

I use ChatGPT ( paid subscription). I don't think it is being made up as most information is sourced. Much of it came from the Taycan forum. Unfortunately, the search engines are not very good on any of these forums. AI reads everything and summarizes.
FWIW, Google is worthless as a search engine. It just points to irrelevant sites in many cases.

Here is the entire response:
[...]

I opened a few of its source links, and none mentioned WST2. In fact, they're about other, older, updates.
This looks like a complete hallucination. The reason I much more trust a search engine over an LLM. LLMs are NOT a valid source of information, their output must always be verified.

 

[Rik_CT4s]

But... It is cool to see another OTA. J1 is still not forgotten at Porsche HQ

Long forgotten, but hey it's Christmas hence this last and final OTA update.

 

[Jasper4S]

I opened a few of its source links, and none mentioned WST2. In fact, they're about other, older, updates.
This looks like a complete hallucination. The reason I much more trust a search engine over an LLM. LLMs are NOT a valid source of information, their output must always be verified.

Fun fact: here in the Netherlands we have a “Word of the Year.” Most of the time it’s some slang that became popular, or a word related to current events, like during the COVID lockdowns.

This year the word was “hallucination.” Not because the word itself is new, but because it’s being used in a new way, exactly as you mentioned: AI hallucinations.

It was chosen to raise awareness that we need to fact-check AI-generated information.

That said, @FlyingPoint did mention Ai, and Ai said "likely".

 

[ovonrein]

Updates to the overwhelmed charging planner / nav would be most welcome...

 

[Dee]

DO THE F****** UPDATE!
I'm dying here!

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