EU/UK: Ongoing navigation issues

[Brombaer1971]

Last time I heard a Porsche service rate in germany it was 310€/h which is around 370US$/h. Still that math multiplies. Not having proper OTA is expensive.

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[Argo]

I now have experienced this navigation issue, so I mailed Porsche connect Switzerland.
Here is their reply.

There is also a web page on this issue:
https://ask.porsche.com/ch/en-CH/2g-3g-network-shutdown/

I did not yet try the proposed phone hotspot fix, although that's a poor solution.
I hope they can get a software fix or a SIM swap made asap, as I'm paying for Porsche Connect, and I would like to use navigation and charge planning occasionally....

 

[chun]

I now have experienced this navigation issue, so I mailed Porsche connect Switzerland.
Here is their reply.

There is also a web page on this issue:
https://ask.porsche.com/ch/en-CH/2g-3g-network-shutdown/

I did not yet try the proposed phone hotspot fix, although that's a poor solution.
I hope they can get a software fix or a SIM swap made asap, as I'm paying for Porsche Connect, and I would like to use navigation and charge planning occasionally....

It’s not related to the lack of 2g/3g
I am getting it while having full LTE connection, with music playing just fine.

This issue is 8 months old at this point; and they still pretend

They will probably waste your time 2-3 more months before going: “ah, you are one of 2 people in the whole world with this issue, but rest assured we are working on it”

Btw, navigation is supposed to work while offline as per porsche manual

 

[Argo]

It’s not related to the lack of 2g/3g
I am getting it while having full LTE connection, with music playing just fine.

This issue is 8 months old at this point; and they still pretend

They will probably waste your time 2-3 more months before going: “ah, you are one of 2 people in the whole world with this issue, but rest assured we are working on it”

Btw, navigation is supposed to work while offline as per porsche manual

Puzzling given the reply from Porsche and the advisory webpage.
Swisscom, SALT, Sunrise, Yallo, Galaxus Mobile etc all discontinued 3G as of end 2025.
Which Swiss service are you using in your 2020 Taycan with its installed 3G connection?
There may be some 3G cellular connections remaining but not for much longer.

BTW, it seems in my car that the charge planner and traffic advisory are live functions not offline, the turn by turn HUD map also seems live.....

Pleased to hear any rational alternative solutions, in short I'd just like my navigation back

 

[chun]

Puzzling given the reply from Porsche and the advisory webpage.
Swisscom, SALT, Sunrise, Yallo, Galaxus Mobile etc all discontinued 3G as of end 2025.
Which Swiss service are you using in your 2020 Taycan with its installed 3G connection?
There may be some 3G cellular connections remaining but not for much longer.

BTW, it seems in my car that the charge planner and traffic advisory are live functions not offline, the turn by turn HUD map also seems live.....

Pleased to hear any rational alternative solutions, in short I'd just like my navigation back

LTE is a 4G technology. Taycans use LTE in switzerland, and always have.

The reply from porsche is standard deflecting, and the advisory webpage, while true, it's unrelated and with close to 0 impact for taycans, as they are capable of LTE/4G connections, and have used that since 2019.

Unless your taycan is a old Cayenne cosplaying, which does not have 4g support , it would have close to 0 impact for you, especially within switzerland, which has close to 100% coverge - with Swisscom claiming 99% 5g coverage in switzerland, and others claiming 99% 4g and above 90% of 5g.

The issue is completely unrelated to connectivity. The naivgation is capable of planning a route with the already cached info while completely offline; it will of course not account for occupancy at chargers or such while completely offline, but it can create a route no problem.

As a temporary solution, you can put your car in privacy mode, and then reset it to default settings, which will delete all of your settings. Then you can put it back online, and functionality will return to your navigaton for a while.
Or you can turn off charging planner, and your turn by turn navigation should work fine, but you will have to plan your routes in smaller steps by yourself, navigating to each charger one at a time.

 

[Argo]

Well lets see what the fix is.
There seem to be enough of us with navigation issues and Porsche is well aware.
I certainly hope it's sorted out by summer when I shall be driving/ exploring more and needing to plan charging.

 

[Jasper4S]

I had the 3g issue @Argo. A service visit to your Porsche Center is needed. They fixed mine by reapplying the PCM update. They said this issue is related to the navigation issues. Probably the communication module is corrupted.

 

[Leatherneck]

Since last week, I have been experiencing the same navigation problem as TS. I have a GTS (sedan) that was delivered in January 2024. The problems occurred immediately after my first regular service (2 years/30,000 km) a week ago, during which, among other things, the heater was replaced under warranty and a problem with the 12V battery sensor was supposedly fixed (because after standing still, it occasionally indicated that the battery voltage was too low). A software update (WSJ8) was also performed. I believe the navigation problem was caused by one or more of the above repairs. My dealer says they have brought the problem to Porsche's attention and are waiting for a solution. Until then, I am using Waze via Carplay.

Yesterday, I suddenly had problems charging at home (continuous error message, on both the right and left ports) and the Porsche app kept spinning. After driving about 50 km, these problems disappeared and the navigation problem also seems to be gone. Has anyone had the same experience?

 

[Gru]

Hi all, I was not following this thread completely as I didn't had the issue.
But I'm back from a short ski trip and the navigation gave us a hard time but not exactly the same problem as the OP.

The navigation would work for a while and then I would receive a message saying charging the map as I often have during long trips but the map is then a black screen and when it comes back, there is no more nav. I have to wait a bit and reenter the destination.
I did it 20 times on the way down, continued even after the car was stopped for a while. I had to reboot via the 2 fingers from time to time.
And yesterday, on the way back home, it was sometimes crashing every 5 min then ok for 10 then crash again.
A friend had Waze at the same time because we missed an exit at first but then the preheating of the battery was not functioning and the first stops were longer....
I thought it was maybe because we were crossing Switzerland but we had the same after in France and it only stopped when we were around Luxembourg.
The last 2 hours went fine without any crashes anymore.

What is the consensus here? Should I contact the Porsche assistance then at least I have a replacement car under warranty or should I contact the dealer and see if there some some updates.
What is the latest update and can I check it myself in the PCM?

I'm travelling again in 2 weeks but this time with my wife and she'll be less calm then my friends if this keeps on happening.

I haven't driven long trips since the end of last summer, where it was working fine for a 2000 km trip.
I recently drove from Belgium to Switzerland, and I experienced what happened in the +50 pages of this thread.
I needed the charge planner for preheating at stops (3) I choose for the trip.
The only "easy" solution I found was to set up the trip / stops in the Porsche app on the phone , and send it back to the car after each Navigation crash.
It reduces stress for the copilot....

 

[ovonrein]

set up the trip / stops in the Porsche app on the phone , and send it back to the car after each Navigation crash.

Great idea.

 

[Leccy61]

Yep, I did similar, charge stop to charge stop navigation.

 

[FredC057]

It’s crashing still to do just 15 min drive to the office when I normally don’t use the pcm navigation but I had to try

 

[Leccy61]

It’s crashing still to do just 15 min drive to the office when I normally don’t use the pcm navigation but I had to try

Surely if you go into Nav settings in the PCM and toggle the charge planner function off, it will not do that and be normal nav?

 

[eddieterry]

Yes - that works for me.

 

[clivep]

I have just completed a trip to the Alps and have suffered the same navigation problems: "Navigation Data Loading" and then all current navigation is lost plus when I input the destination again, the previous charging stop data is still visible and the new stop is only shown in Route Overview (but does not include charger availability data which is vital). I suffered this blackout about 30 times each way and had to do a two finger reboot many times while driving to remove the outdated information and start navigation again (only to see it disappear sometimes within minutes). I cannot be certain but I think the problem occurred in UK as well as Europe.

I only received a small number of "Map Data Updated" messages on this journey which is suspicious - they seem to have been replaced/overwritten by the Navigation Data Loading message. I suspect that the SIm card (LTE/4G MY21) is now overloaded and this is causing the problem (see below re battery monitoring).

I have never found charge planning sufficiently sophisticated to be useful on long journeys (which have included the Lofoten Islands, Mediterranean and many alpine trips) so I generally use Ionity and set intermediate stops at the next charging point with an 80% target (though even then sometimes the charge planner chooses a 50kW nearby!). HOWEVER charge planning is important to preheat the battery for ultra rapid charging on long journeys so I had to reset the PCM about 30km out from each stop to be sure of achieving this.

I also have Innodrive and this is ineffective (eg for reducing speed limit automatically) when the navigation data is lost.

There was also a very noticeable lag in navigation instructions and data loading. I have occasionally suffered this problem but not on the scale of this experience.

It may be a coincidence but this is the first long journey using recharging that I have completed since the OTA update for battery monitoring. I have noticed that the ultra rapid charging algorithm has also noticeably changed (often slower starting but maintains higher charge rates until 80%).

I am sending a report to Porsche UK (who are normally useless) as well as Edinburgh Porsche (who are normally very good) to obtain their feedback. If necessary it will have to go to Edinburgh for investigation under warranty and I will be asking for my PCM contract to be credited for this period (along with a credit for the loss of Innodrive functionality). Were Porsche to issue a notice advising of a general problem, I would be more prepared to be patient.

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