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I tried taking pictures but couldn't get anything. I have two areas which looks like bubbles when the screen is off, but they also look like they could be light sensors. One is the bottom middle of the screen and other left middle of screen.
Press and holding the volume button turns off the PCM completely, anything controlled by the PCM shuts off too (A/C, radio, etc.)
There is an icon (see pic) that allows you to turn off the PCM display anytime and leaves everything on (A/C, radio, etc.) .
You may have to reconfigure your PCM display to get it on the display. Mine was hidden in another display configuration and I had to move it around to get it on my actual display. It's in the manual on how to do this and it's a PITA. This is a '21 C4S.
It's quite nice to turn off the display while driving at night, actually, the daytime too. The display will turn on again when you touch it or turn the console volume ****. Steering wheel ***** don't affect when it's off.
Next, have to kill the overhead light that's on at night.
Press and holding the volume button turns off the PCM completely, anything controlled by the PCM shuts off too (A/C, radio, etc.)
There is an icon (see pic) that allows you to turn off the PCM display anytime and leaves everything on (A/C, radio, etc.) .
You may have to reconfigure your PCM display to get it on the display. Mine was hidden in another display configuration and I had to move it around to get it on my actual display. It's in the manual on how to do this and it's a PITA. This is a '21 C4S.
It's quite nice to turn off the display while driving at night, actually, the daytime too. The display will turn on again when you touch it or turn the console volume ****. Steering wheel ***** don't affect when it's off.
Next, have to kill the overhead light that's on at night.
I have a different PCM, a '23. Where in the manual? I found it in the system but it's too deep to get to when driving.
Originally Posted by adrianp89
One is the bottom middle of the screen and other left middle of screen.
You can probably find your manual on My Porsche. I have a paper manual included with my '21 car. You'll either need a paper manual or a laptop to access My Porsche and configure the PCM. Going to be about impossible to read the manual on your PCM and configure your PCM at the same time.
Go to and login to My Porsche. Search for Manuals. When your Manual comes up, got to PCM, configure widgets and read the instructions. It's loads of fun, good luck. I don't have a clue on a '23 car.
I tried taking pictures but couldn't get anything. I have two areas which looks like bubbles when the screen is off, but they also look like they could be light sensors. One is the bottom middle of the screen and other left middle of screen.
Have you removed the plastic film from the PCM screen!
09-19-2023, 03:28 PM
PCM Screen Bubbles or Sensors?
Only twice though.
