PCM unit restarting every 2-3 minutes
05-27-2020, 03:52 PM
#32
2nd Gear
Join Date: May 2020
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It’s XM.
I called the dealer and was told it’s an XM radio hiccup. They walked me through the PCM rebooting process and now all is great! It starts with holding the info button on the radio for a few seconds and then press the car button on the radio. Sorry I can’t remember the next sequences but I recall they’re pretty intuitive.
05-27-2020, 07:31 PM
#33
Burning Brakes
I called the dealer and was told it’s an XM radio hiccup. They walked me through the PCM rebooting process and now all is great! It starts with holding the info button on the radio for a few seconds and then press the car button on the radio. Sorry I can’t remember the next sequences but I recall they’re pretty intuitive.
The following 2 users liked this post by CRoger:
diamond-back (05-31-2020),
spotcheem (05-29-2020)
05-28-2020, 08:38 PM
#35
thanks for this!
mine just started acting up today, every 3-5 min it would reboot. I do have XM as well.
Version 3.43.
Followed the process, see if it works.
appreciate this forum!
just noticed this was in the cayenne forum (i have a 911) but PCM all the same
mine just started acting up today, every 3-5 min it would reboot. I do have XM as well.
Version 3.43.
Followed the process, see if it works.
appreciate this forum!
just noticed this was in the cayenne forum (i have a 911) but PCM all the same
Last edited by cclcal; 05-28-2020 at 08:41 PM. Reason: additional info
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diamond-back (05-31-2020)
05-29-2020, 09:25 AM
#36
Thank you CRoger so much for taking the time and effort to post this! Absolutely spot on! Fixed my problem that I thought for sure would cost hundreds at the dealer. My wife is ecstatic!! You are the sheriff!
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08-26-2020, 02:59 AM
#39
1st Gear
Join Date: Aug 2020
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Same issue here. Started the reboot reboot reboot on Tuesday of this week. I called the dealer and they confirmed it appears to be linked to Sirius XM. I was told Porsche is aware and has a software fix. Mine goes in next Tuesday for the update and hopefully that solves it. Just purchased last Friday ('11 base version but has virtually every option but PASM) so this was making me nervous.
The same problem happened to me, my 2009 Cayenne. It turns off every minute and works on its own. The sound never exists. If you find a solution, please help.
08-01-2021, 07:49 PM
#40
1st Gear
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My 2015. 911 carerra is doing the same thing.
I just had my Cayenne detailed (same guy I’ve been using for years and he’s very fastidious) and the PCM unit is now shutting down and immediately restarting from the Porsche Logo/white screen every two or three minutes. I’m pretty certain he didn’t have anything to do with it. He says he didn’t spray directly onto the unit. He didn’t have the keys either. I’m pretty satisfied its just a coincidence.
Its now also difficult at times to switch between AM/SiriusXM or between stations (buttons not responding or responding slowly) though this is much more intermittent than the constant restarting.
Has anyone else had this issue??
Its now also difficult at times to switch between AM/SiriusXM or between stations (buttons not responding or responding slowly) though this is much more intermittent than the constant restarting.
Has anyone else had this issue??
Nothing happened, just started shutting down, the Porsche badge shows then back to where it was and and in a few minutes the same thing over and over. Has anybody heard of a fix or what is causing it?