Assistance Systems Error - Speed Limit Display (warning message)

[Diamondtrons]

Macan 4, with Innodrive.
Since day 1, i have regular intermittent fault messages on the instrument cluster
It comes and goes very randomly but unfortunately every day !
-> Assistance systems error / Speed limit display. Function not available, service necessary (See photos attached)
The front camera, windscreen are all cleaned, with no obstruction.
The car is booked in two weeks with Porsche West London….
Watch the space !
Any similar issues ?
Walt.

 

[nulled]

Did you try holding the volume button for 30sec? It should restart things is what they say.

 

[Diamondtrons]

Yes and no luck

 

[nulled]

My ex-Tesla used to turn off features when sensors or cameras are blocked or dirty or if the sun is shinning directly in them or if it was too dark. It could be something similar?!

 

[adrnlyn]

Me too. Check my other post.
adaptive cruise went out. Happened after charge at quick charge.
does your blind spot monitor work? Mine has never worked.

 

[Diamondtrons]

Hi. We are now at least 2 cars with the same issue. My car is booked in 2 weeks for a service and hopefully they will found out what’s happening. My blind spot monitor is working though.

 

[Pitteken]

This happened to me yesterday. Nothing to do with charging, it was in mid drive after about 75 kms. Solved itself during the ride after about 5 minutes. Not yet happened today. Adaptive cruise was down, but limiter not... also driver monitoring was down (the feature that keeps you "awake")

 

[quaxon]

If there is a problem with the car can you take it to any Porsche dealership or only the one you bought it from? Because I am getting mine from socal but live up in norcal.

 

[tmrqs]

If there is a problem with the car can you take it to any Porsche dealership or only the one you bought it from? Because I am getting mine from socal but live up in norcal.

Any dealership.

 

[p_macan4]

I am having similar issue. From day 1 of the car I have the assistance systems fault. I believe the fault is a result of this driver assistance and possibly to do with not recognising the speed limits. I have this orange lights with car on the dash. It’s very intermittent but causes inability to know the speed limits and then also to use the adaptive cruise control.
the speed limiter works and so does the blind spot monitor.
I’ve reported to my dealer who mentioned others are having similar issues.
im hoping a software update will fix this and quickly!!
Anyone found a fix?

 

[Diamondtrons]

My car is booked with Porsche West London next week for a minimum of 2 days (rental car provided). I will keep you updated !

 

[Diego]

Please let us know so we can update the issue thread and have some kind of “statistics”. Thanks

 

[SteveP]

Just thought I’d drop this note in for some who are wanting to get some more detailed info on this problem.
Yes it’s Software-Based, not Hardware.
Sensor functions are not the issue, it’s the communication networking between all of the systems that is looking most likely.
It’s also down to the car thinking it’s in a different locale/GPS area in which Porsche do not provide assistance systems (can’t confirm exact location).
As the car runs Android Automotive OS, everything is compartmentalised, meaning the location error is only specific (at present) to the process that runs the assistance systems networking, not Navigation, Car Finder processes etc.
A Factory Reset (in the PCM) and re-attaching the MyPorsche Account will fix it for a short period (shutting off the vehicle and locking in between Reset and re-attaching). However will likely raise the issue again within 15 minutes or so once systems start coming back online and carrying out their checks.
IIRC VW had similar problems with the early software builds of their vehicles from 2020 onwards.
Can’t give any more than this at present, but will see if anything arises in the coming weeks.
Will be interesting to hear if anyone else has any more info following on from diagnosis of theirs at a local OPC.

 

[gramorris]

I experienced this on a test drive yesterday from South London. The description from @SteveP matches my experience where it lost the assistance system going out on the A20 and then they came back at the same place on the return leg.

 

[n4v4nod]

Happened to me on Friday... Dropped my son off at school and upon returning to drive home, all assistance features disabled. Lots of warnings on the instrument cluster. Stayed that way until I got home and turned on and off. Hasn't happened since.

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