991.2 PCM questions / issues
10-02-2016, 04:43 PM
#31
For some reason, this thread reminds me of this bit.
10-03-2016, 02:43 PM
#34
Rennlist Member
I've just finished setting up my myscreen and my car is not loosing the set pages. So your situation is not normal.
This may or may not be parallel but I had a 2012 Cayenne S that no longer let me save new memory settings. It would give me a gong whenever I pressed Set and # but when I would turn the car off then back on it would just go to the previously saved seat setting. I know this has nothing to do with your multimedia myscreen page but it sounds similar to what I had dealt with in terms of setting the car memory. I took it into the dealer and they reset my memory settings through the OBD port. Worked fine since then. You need dealer assistance.
It seems like a few cars have alzheimer's package checked off without us knowing..
Good luck.
Stephen
This may or may not be parallel but I had a 2012 Cayenne S that no longer let me save new memory settings. It would give me a gong whenever I pressed Set and # but when I would turn the car off then back on it would just go to the previously saved seat setting. I know this has nothing to do with your multimedia myscreen page but it sounds similar to what I had dealt with in terms of setting the car memory. I took it into the dealer and they reset my memory settings through the OBD port. Worked fine since then. You need dealer assistance.
It seems like a few cars have alzheimer's package checked off without us knowing..
Good luck.
Stephen
02-28-2017, 07:09 PM
#35
Rennlist Member
Quick update on this. I tried to do the reset as ipse dixit suggested and it did work... for a few days... now it lost the contacts again. So it looks like it will be a trip to the dealer which I have been trying to avoid because it will be a nightmare trying to explain the situation on a car they have no experience with (yet).... will report back once I go..
03-02-2017, 11:55 AM
#37
03-22-2017, 11:12 AM
#38
Instructor
PCM update nightmare
The PCM software was updated on my 991.2 C2S last week as part of first year service. A lot of things have gone crazy since; reverse camera won't come on, am unable to save any settings (display, seat, etc.), system says defective SIM card even though there is no SIM card (once the error message pops up, PCM is as good as dead as you cannot navigate away to anything until u switch engine off, lock car and restart after few hours), the car is running google maps / broadcasting wi-fi without SIM card, etc. Dealership was unable to fix the issue by 're-flashing' (their words) the firmware and they have contacted Porsche NA for guidance. I'll update once everything is fixed. Those of you about to give your car for a PCM update, please check with the dealership if they have had any issues before doing it.