fLUNX

Same here in Portugal (Europe)
Will check again.. but think that my version is a 4.74.
Tomorrow visit to the dealer.
Carrera GTS 2015 (10000km)... as new...
Are the PCM unit all with Hard drive or some with "dvd"?

Will leave my feedback later
Thank you.

Flávio

btchin

Larry Cable

The PCM in my 2015 GTS started doing the reboot loop a couple of days ago, here are a couple of videos:

https://drive.google.com/open?id=197...6ScLCGsIpugVw9

https://drive.google.com/open?id=1am...ylikeorZOU6F8W

I contacted my dealership (sonnen), they said that there is an known issue with the PCM units, and Porsche are simply
replacing them when this occurs, when a video of the behavior is provided by the customer/dealer ... YMMV

Not sure if you can hear it on one of the videos but you can hear an audible 'click' from the PCM as it cycles, I suspect its either a relay or
the internal disk drive...

WarEagle13

I have a similar problem with my '15 C2S, except mine waits exactly 2 minutes between reboots. It's sitting at the dealer getting a new PCM today.

Larry Cable

seems like it may be not an uncommon problem ...

My unit only started doing it a couple of days ago - seems pretty random, sometimes it works normally other times it doesn't, and sometimes it works for a while, then crashes, and loops, and sometimes successfully restarts!

Dealer is ordering a new unit for installation in the new year.

pls update us on the results of your new install - good luck and happy holidays

WarEagle13

Original PCM refused to update from 4.73 to 4.76 then went into emergency recovery mode. New PCM installed today and all is well. Good luck with your replacement!

Pavegeno928

Had 4.76 while in Germany. Came back to USA and got US maps updated and now I have 4.52. Dealer can't figure out how to get it back. Anyone have any info on this? I have 15 months left on CPO for my 2014. Was hoping a map update will come out to fix the problem, but if not, I will bring it back before the warranty runs out to get 4.76. The dealer has tried to ping Porsche to find out how to get 4.76, but short of reloading the latest maps, which we have done, he doesn't know what to do.

Would appreciate any help.

Larry Cable

cheers I will report once the unit is replaced.

Larry Cable

well the good news is that the replacement PCM was waiting at the dealership - the bad news is that they "forgot" that my PCM had the "exclusive" "Paint to ext color" option ... so now the hunt begins to see how to order
a new PCM in my exterior color (Sapphire Blue Met - which is no longer in the std palette) ...

Also the bad news is that a s/w upgrade did not solve the constant rebooting problem...

just as an FYI, I notice that there is an audible "click" from the PCM just before it shows the Porsche Crest logo splash screen, this noise sounds suspiciously similar to the noise a disk drive makes when resetting after
trying to access a bad block - or its a power relay being tripped (but I would expect to hear that every time a PCM booted)

now I wait to hear if I can get another painted PCM...

Larry Cable

OK, so my 2015 GTS PCM unit has been in a rebooting loop since before the holidays, and I am waiting for my dealership to figure out how to get a replacement PCM unit with the fascia painted to ext color...

The unit is "useless" constantly booting and rebooting - it simply is not function - but...

yesterday driving into the office I was idly sitting in traffic, and for some unknown reason I pressed the parking sensor "off" button above the rear view mirror - and voila! the PCM started working again???

it worked all the way home ... I'm going to monitor the situation to see if this has resolved the issue ... or if its just the gremlins toying with me...

watch this space!

UPDATE: while the rebooting problem has not totally gone away, disabling the parking sensors seems to help the PCM "stay" booted ... weird!

2010panny4S

Happened to my previous Panamera, first was rebooting every 5 mins then shorter times to the point were it kept rebooting every 10-15 secs. Dealer had to replace the PCM. Thank god for warranty.

Porsche911GTS'16

My PCM went cray, cray last fall. All sorts of craziness going on with it. Was like one of my ex-girlfriends. But I digress...

Took it to the dealership and it was swapped out for a brand new one under warranty, including a new six CD changer (as I have Burmester). Works like a charm again.

Larry Cable

yeah I am waiting for a new PCM, unfortunately since I spec'ed my car with the PCM trim painted to the ext color its proving to be elusive to obtain a similar replacement.

here is a video of my PCM rebooting continuously: https://photos.app.goo.gl/DspRpUzczEJe8t1M7

Skiber

rezok

I’m having the same problem regrettably. Car booked for a 4 year major in three weeks. Will get it replaced too I’m thinking based on the replies here.

Randomly cycles and reboots. No Bluetooth and the maps loading screen...