EU/UK: Ongoing navigation issues

[chun]

I have all of the above issues with the navigator hanging and being extremely slow for some time now. Yesterday and today I also experienced a new issue when navigating on a longer road trip of about 900 km. The PCM plans and navigates to Ionity chargers, that have been in place since 2020. So no new chargers or location. However I noticed that the navigator stated I had 1minute to drive to the charger but the distance was 0m! So I was in place and charged.

The battery had been preheated to about 40 C. And the weather was absolutely terrible, very high winds with gusts up to 120 km/h, squalls of rain and very wet .speed was restricted as visibilty was very bad. So we never switched the car off or exited and locked the car, just sat there waiting. The first leg had consumed 28 kWh/100 km for about 150 km. The second leg after the charging stop consumed closer to 30 kWh/100 km and it looked like the preheating had not stopped at all. The battery temp was over 43 C for the leg see below.

It looked as the PCM was overloaded and did something else. It did not react to deleting the nextwaypoint. The instructions in the right tube froze constantly and did not react for over 8 km at 130 km/h driving ! I did Not get any advice to take the exit,on screen or verbally ( they were all well signposted so no issue). And then suddenly PCM came back in action. Seems like the processor is out of power or gets into a loop.

Most of my problems have started getting really bad after the recallto get the new battery surveillance SW installed??

Any one else experience these issues?

I reported this issue also, when I still had the navigation problems.

What happens is that the navigation resets/forgets the route, and the per-heating of the battery remains enabled indefinitely. I have seen my battery reach 60C + because of it.
The solution is to lock the car and go away with the key from it for 10-15 mins.

All TIs related to possible solutions for this issue seem to be only for 2020-2021 cars, for whatever reason. But the issue is clearly not a 2020-2021 cars issue only.

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[pioneer_nl]

Headlight SW fix, forgot about the other one. Recalls are unrelated

I have an appointment on 27 November. Have you already received a response or schedule an appointment?

 

[Jasper4S]

I have an appointment on 27 November. Have you already received a response or schedule an appointment?

Nothing sorry

 

[Jasper4S]

I finally got the update from my Porsche Center… they escalated the issue to Porsche because many other owners have the same issue.

I’m a bit suprised because I thought it was already escalated to Porsche.

I also finally got a reply from Porsche Connect Services tech team. They want more time to investigate (I asked for a refund of Porsche Connect and FoD’s).

Any one else with better news or a good solution?

 

[chun]

I finally got the update from my Porsche Center… they escalated the issue to Porsche because many other owners have the same issue.

I’m a bit suprised because I thought it was already escalated to Porsche.

I also finally got a reply from Porsche Connect Services tech team. They want more time to investigate (I asked for a refund of Porsche Connect and FoD’s).

Any one else with better news or a good solution?

Mine remains fixed post ECU updates. Not sure which one did it, but according to them, they updated them all.

So likely some conbination of ECU software versions causes it, and would explain why not everyone has it.

 

[Jasper4S]

Mine remains fixed post ECU updates. Not sure which one did it, but according to them, they updated them all.

So likely some conbination of ECU software versions causes it, and would explain why not everyone has it.

I asked about it, it was professionally ignored by my service center. They do not bite at all. Probably they are clueless and not eager to spend any more time on the issue before Porsche AG responds to the escalation. My SA is a really nice guy, so not going to push as it is out of his hands right now.

 

[Dabz]

I’ve just completed a 2hr journey in the dark and wet, unfamiliar roads and the navigation crashed on me 18 times. It’s beyond a joke now

 

[Rik_CT4s]

Could it been solved or anything to do with the latest nav update? I just received my car back from the dealer because I had an issue with the driver window (mechanism faulty, replaced under Approved), but also asked for the nav update and got the latest nav version installed. Not sure if that helps, but perhaps worth comparing which versions you are on.
I didn't experience the problems as described by others.
Turbo S CT MY22.

 

[The Riddler]

Mine doing the same thing this week. Satnav to pick my daughter up from a gig venue in SE London, so rather needed the turn by turn guidance. Crashed continuously and then finally gave up altogether, losing the map completely. Had to switch to Waze. Heating seems to have packed up too but difficult to tell in 16 degree November…

 

[Jasper4S]

Today was a very bad day. Seemed worse than other days.

 

[Rik_CT4s]

Today was a very bad day. Seemed worse than other days.

Back to the Stealership immediately! I know a guy R.S. who is able to solve almost everything.

 

[Dabz]

Today was a very bad day. Seemed worse than other days.

The fact this was my worst experience too suggests maybe it’s a server issue? Though seems odd that navigation would require a connection other than for traffic/charging updates.

After posting last night I had a further map update but by then I was arriving at my destination so haven’t driven since

 

[Brombaer1971]

You‘ll get small maps updates all the time while traveling longer distances. If it would be just a server side issue I would be seriously surprised because it is going on for too long.

 

[Scandinavian]

You‘ll get small maps updates all the time while traveling longer distances. If it would be just a server side issue I would be seriously surprised because it is going on for too long.

My issue is that the navigation instructions in the driver display as well as the main map freezes. Also voice instructions. And even more strange is that they seem to freeze at different times.

Yesterday my instructions in the driver display, right tube, froze, showing 30 meters to the exit from a round about, while the center display with the map showed 20 meters! And both were wrong since I already had take. The exit a couple of hundred meters earlier. It started working again at the next turn instruction when the voice command came on.

However the main map in the centre display is active and shows the position correctly?

We managed to capture a similar instance a few days ago. Exiting out from a charging stop to the main motorway, the turn by turn instructions froze. And while the map display showed the correct position on the motorway at 100 km/h.

 

[chun]

My issue is that the navigation instructions in the driver display as well as the main map freezes. Also voice instructions. And even more strange is that they seem to freeze at different times.

Yesterday my instructions in the driver display, right tube, froze, showing 30 meters to the exit from a round about, while the center display with the map showed 20 meters! And both were wrong since I already had take. The exit a couple of hundred meters earlier. It started working again at the next turn instruction when the voice command came on.

However the main map in the centre display is active and shows the position correctly?

We managed to capture a similar instance a few days ago. Exiting out from a charging stop to the main motorway, the turn by turn instructions froze. And while the map display showed the correct position on the motorway at 100 km/h.

Yours is a 2020 taycan, from what I remember.
So you can take it to the dealer and request this campaign: https://static.nhtsa.gov/odi/tsbs/2025/MC-11023001-0001.pdf (this bulletin was updated on 29 Aug 2025) which should fix it, and they have no excuse not to do it.

So far both me & my buddy that had the issue, got it solved by getting the cars ECUs to be updated. Not sure which one did it, as they spent 2 days doing software updates on it, and updated everything - his is a 2023 car, so not sure if the exact same updates were applied, but both were done by the same dealership/service.

They also quite clearly state that you can't just update one or two ECUs, as they have dependencies between them, and most need to be updated.

Depending on the software version of the individual control units in the vehicle system, other control units must also be re-programmed or coded.

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