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PCM Startup

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Old 03-31-2021, 10:01 PM
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mobilis
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Default PCM Startup

Is anyone experiencing a good 45secs to 90secs delay for the PCM screen to be available functionally on ignition? I am, and it’s replete with spinning circles. The real annoyance is homelink is also unavailable so I can’t close my garage door until the screen initializes and the action is available. It seems to happen when the car is turned off for >1 hour.

If anyone else has faced it and has successfully solved it, I would love your tips.



Last edited by mobilis; 03-31-2021 at 10:06 PM.
Old 03-31-2021, 10:08 PM
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detansinn
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Yes, normal. It starts booting once you open either door. So, if you sequence things right, you will have a shorter wait.
Old 03-31-2021, 10:11 PM
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mobilis
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I see, thank you. Is that true without the ignition turned on?

This is so annoying. I miss the old PCM and the homelink buttons
Old 03-31-2021, 10:20 PM
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detansinn
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Originally Posted by mobilis
I see, thank you. Is that true without the ignition turned on?

This is so annoying. I miss the old PCM and the homelink buttons
yes, just opening the doors starts its wake from sleep.
Old 03-31-2021, 10:23 PM
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mobilis
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Thank you @detansinn

Note to self: Remember Vonnegut - Enjoy the little things in life because one day you`ll look back and realize they were the big things 😀
Old 03-31-2021, 10:43 PM
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Carrera3:16
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I’ve noticed this too a couple time. Definitely not the norm...maybe once every 3 days.
Old 03-31-2021, 10:49 PM
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mferris
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I’ve noticed unlocking the car with the remote, even if not locked, also speeds the process. Waiting in my driveway at noisy high idle for the PCM to boot so I can close the door is definitely one of the little things that matter to my neighbors.
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Old 03-31-2021, 10:51 PM
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gcurnew
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Mine takes about 30 seconds to boot. I hit the "unlock" button from about 50 feet away, take my sweet time walking to the car, climb in, tuck my face mask in a cubby, belt up, check mirrors and it's generally ready to go. If it's not, I swear at it a couple of times and it seems to respond within a few seconds.
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Old 03-31-2021, 10:59 PM
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rk-d
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Yep. 30 sec for me. Total PITA. I'm hoping the 2022 is better.
Old 03-31-2021, 11:02 PM
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I already learned to hate those spinning circles in my Panamera. It's a pathetic usability/design failure. I've chosen to refuse to put up with it. When the 992 arrived I just clipped a garage door clicker on the visor and didn't even bother with homelink. Now I can just enjoy the car instead of being mad at it.
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Old 03-31-2021, 11:11 PM
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Hit unlock as soon as you pick up the key fob and by the time you get in, buckle up, it should be ready within a few seconds. The range of the remote is is pretty far.
Old 04-01-2021, 12:05 AM
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mobilis
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I leave my remote in the car when in my garage. I have to remember to carry it in
Old 04-01-2021, 12:54 AM
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It is normal... and absolutely awful. The 992 is an incredible revision of the 911 but the tech is trash; equivalent to most European cars sans BMW right now. I purchased a new 2021 Macan S for my wife in December and the wait is well over a minute until everything clicks on for the PCM.

When my 911 was in service recently the dealership lent me a Taycan for an afternoon. The car was incredible but the tech was about the same... aggravating. Tesla as a company drives me nuts but their software atleast boots up within 5 seconds.
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