EU/UK: Ongoing navigation issues

[ovonrein]

it's so amazing then that happens

Massively satisfying when both car and charger are smoking. Lord knows what it does to the grid. Probably the lights flicker in some nearby village

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[chun]

Massively satisfying when both car and charger are smoking. Lord knows what it does to the grid. Probably the lights flicker in some nearby village

If this is a joke/sarcasm, ignore my comment, but if it's not... it does absolutely nothing to the grid
Most of the energy comes from local battery storage, which is charged at lower rates.
Even more than that, specific to France, last year it had so much surplus of energy generation that they couldn't handle it - the wonders of nuclear energy . Energy grids will do just fine as long as they are still designed by engineers and not activists.

And on the topic, this car was advertised and sold with promises of constant OTA updates and improvements. It is beyond unacceptable that basic functionality is not working anymore, for months, without any update.

And again i bring it up, the more they delay the fix, the higher the chances someone crashes while the navigation shits itself and disables InnoDrive mid use and causes an accident. This should be a recall!

 

[ovonrein]

the energy comes from local battery storage,

The reason why so many HPC do not deliver the headline charge rate. Local battery empty.

 

[Brombaer1971]

Seems to be Area dependent, here in germany you‘re mostly on the good side with charging.

However this is annoyingly offtopic, its about taking way too long to fix that problem.

 

[Kelpie_automotive]

We have 3 Taycans. 1 SS 2020 and 2 CT’s (2023 and 2024). They all have the same issue, unfortunately.

Porsche sold a concept that were supposed to handle OTA updates and thereby also futureproof to some degree.

The PCM is bad. I’ve had several cars with MMIs that is both quick and functioning even beyond 10 years. Just have a look at BMWs iDrive. My BMW F30 with Navi Prof. and BMW i3 still works fantastic. We had a Z4 2019 with iDrive that was more responsive, had apps/internet connection and touch interface. No issues with it at all.

Tesla Model S with MCU2 from 2018 that up to this day works incredibly well.

Audi E-tron 2019 MMI with VAG software that is a lot quicker than the Taycan MMI.

Porsche sold the exact same hardware on the Taycans up to 2024. 1 year old cars are not supposed to have obsolete hardware.

It is to be expected that not it will be out of date someday, but out of date is not the same as not working. Most cars we’ve owned still have a functional MMI, just not all the latest features and updates. Same goes with phones. I have a few old iPhones in a drawer which I’ve had to use from time to time as a backup (broken phone). Even the 2017 iPhone X still functions as intended to this date (I know because I had to use it for 1,5 months waiting for a new phone).

Nothing new about it. The infotainment was always the first thing to age. My 1999 BMW had a built-in car phone. That was cool when it rolled off the production line...

Well, naturally. How could it be any other way? The art would be to optimize software to respect those limitations. I fail to see why that could not be done. But the problem with modern programming environments is that they promote bloat.

 

[Sace]

I think I posted a while back about this but do others also see massive slowdowns when having the map in the drivers displays? Even when I have no active navigation it seems that the UI slows down in periods corresponding when the nav would hang as well.

Luckily I only use the nav when going on summer holidays. This issue appeared during our trip last summer - Maybe Porsche will fix it before this summers trip?

That they now randomly replaces hardware and applies "fixes" that does not permanently fix anything is just sad. I would honestly rather that they admitted "Yep, it's a problem and we don't have a fix yet".

Well, naturally. How could it be any other way? The art would be to optimize software to respect those limitations. I fail to see why that could not be done. But the problem with modern programming environments is that they promote bloat.

Couldn't agree more. I'm working with embedded software and it is a real challenge to work on ressource constrained systems these days. And getting developers with the right skills and mindset is a problem too.

 

[Scandinavian]

Yes are indeed lucky to have a very dense and ultra fast charging network on French motorways. Most of the stops do have 300+ kW chargers. When PIRM works correctly, I always get 250+ kW (I always stop below 10%) and it's so amazing then that happens

I think you are mixing up PIRM and the normal charge planner. PIRM is not needed for normal roadtripping and charge planning. It is an extra option that you can get on top of the standard planner. I do not have it and did try a car with it in the beginning, but found it more of trouble than any help.

I have seen more and more chargers limiting the power, due to more demand for charges. And Ionity is one of the worst ones lately. Feels to me they have not enough power available from the transformers and the local storage is often depleted. And the old Tritium chargers seem to be the worst.

 

[V8Turbo1974]

LOL a year ago when I moved to from a 2014 991.1 Carrera (model launched 2011) and PCM 3.0, I thought I'd arrived in PCM heaven with my MY24 Taycan.... now not so much. LOL

My previous car was a 2008 987.1 Cayman, so I can relate

 

[Scandinavian]

Most probably this issue caused by ARB6 recall. Before that patch, i had no issue

Perhaps but that was not the case for me. The first time that I noticed the issue was when, ironically, I was navigating to an out of town Porsche Centre to get the update installed! This was while on holiday in Sweden and I had received the letter from Porsche, due to my car not being able to do OTA.. I had searched for the particular Porsche Centre in the navigator since it was the first time in that direction. The navigator froze and I missed the exit from a motorway to the workshop. This meant a diversion of some 25 kilometers.

In my case the problem existed before the update for the battery monitoring.

 

[pls1]

My J1.1 is currently at the dealer for exactly this issue with the PCM freezing. I had originally asked them to update from 3882 to 3885 which I believe they did. They called up after a couple of days saying they needed to replace the PCM and do some other updates.

Within a couple of days they had done the work and were driving the car back to me to swap it with the loaner. On the way they called again to say the charging planner was still freezing so they were taking it back to the dealer to investigate.

Kudos to the dealer that they didn't brush it under the carpet and just hand the car back. On the other hand, I'm not holding much hope to a fix anytime soon given other experiences on here!

 

[eddieterry]

I don’t understand why the dealers don’t know that Porsche has not yet got a working solution to this problem - they seem to be just wasting their and our time rather than waiting for the solution.

 

[Leccy61]

Indeed @eddieterry they’ve booked mine in next month for the PCM freeze. I’m only motivated to take it in because “campaign WSS6 Re-programming 12V battery sensor” is being done at the same time.

 

[Leccy61]

I’m on a weekend away trip working around it by using ABRP premium for nav and charge stop planning. Only if the battery needs warming for a charge I’m using the Porsche nav to navigate to the next stop. Shouldn’t have to do this or pay for another planner, but it is doing the job.

Prefer Apple Maps over ARBP for nav, but it’s not bad and the charge planner on premium is intelligent with great filtering and preferences, including preferring chargers that are Octopus Electroverse compatible.

Also discovered that with Fastned you can set the car up for plug and charge and get discounted 71p, which for the UK is pretty good for a non-subscription rate.

 

[ovonrein]

In my case the problem existed before the update for the battery monitoring.

Same here. And on a most recent long round-trip, my nav often crashed on the way out and not once on the way back. Only difference I could tell was that I had received lots of map updates on the outbound leg, none on the leg back. (Thinking about it - since it never crashed on the way back, it also never recalculated the charge plan. Because it crashed all the time on the way out, it needed to calculate many different charge plans. The way back was a mixed blessing. While staying alive meant that turn-by-turn navigation kept up, the Charge Planner did not adjust when its intended charge point dropped to zero availability.)

 

[cityhpper]

I'm on the 3885 since about November 2025. Navigation has not had any freeze situations, but the PCM has done a couple of reboots (driving, but no active route guidance/navigation).

So far, so good. But earlier this week, I did a 200 + 200 km trip, and while navigation instructions and screen updates were spot on, there was another glitch: PCM showed that I would arrive at destination with a higher battery percentage than the current SOC (no charging sessions was planned). In fact, it kept going slowly upwards, as if the car was expecting a 100 km long downwards slope or something.

Anyone else seen this?

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