My '09 997S has XM radio. I'm still in a free trial period that came with the car when I bought it CPO'd from a dealer in April.

I'm trying to track down what is either a PCM-related problem or an XM problem, but I'm not sure which. When I toggle the steering wheel stalk to display "audio" on the small instrument cluster display, I sometimes get a list of the XM stations stored to favorites. Other times, I get just a blank screen. I l've tried re-authorizing the XM radio, turning off the PCM, and going into the display option settings to see if I can figure out how to resolve this glitch, but have had no luck.

Has anyone else run into a similar problem? As always, any advice would be much appreciated.

 

My XM was very flaky too on my 07 997.1TT. Some days it would work and some days nothing. I just stop using it. I have heard and read that since my car was NOT suppose to come with XM the dealer won't support it. The Cayenna XM tuner was/is used and Porsche won't support it any more because of all the issues.

 

I've had no issues with the XM tuner specifically.
The OBC (on board computer) instrument cluster display typically shows the station name of the tuned XM station, or the call letters of an FM station I think, and then the useless track # of a CD/DVD, etc.

I have seen on occasions, where that display will scroll song or artist names, but that was when I was listening to FM radio. I think that results from an intermittent glitch in how the radio extracts the digital data (station call letters, song title etc) from the radio signal and the artist or title data was temporarily ending up in the 'station call sign' field of the data stream the computer saw.

Maybe thats whats going on in your case as well... though with XM, being it is all digital, I'd not expect that sort of flakiness (vs the analog FM signal decoding).

Do you get the XM station name of the tuned station showing in the OBC display in the cluster?

 

Thanks, Minok. I get the name of the XM station on the instrument cluster in the middle section. But, when you push the control stalk forward to where it displays various options such as "settings," "oil," "navi," etc., and select "audio," I frequently don't get anything on the bottom 1/3 of the display when the audio source is set to XM. By comparison, when the audio source is set to iPod, I get a display of the iPod content that I can scroll. The same for FM. It only works sometimes when the source is XM.

 

I'll check mine when I get home. That sort of additional data depends a great deal on the data begin provided by the audio source. If you pull up the detail info on the XM source in the PCM, does it display the data you are looking for (typically title and artist of a song)?

 

Yup. The PCM displays all info flawlessly. It's just the instrument cluster display that sometimes does and doesn't display info.

 

I just got back from the dealer for some warranty work. One of the items I had them look at was the intermittent non display of XM info when selecting Audio using the control stalk. They didn't have a fix.

I have a 2009 Cayman, we checked two other used 2009 on the lot that had XM they all did NOT display the XM info after selecting audio. I plan to take some pictures/video next time it does work to show the dealer, they thought I was nuts when I said it did display sometimes.

Once I have that I plan to escalate to see if anything can be done.

 

Sounds like my problem, exactly. My guess is that it's a Sirius/XM issue, because the display works as it should with every other audio source.

 

Here's a picture of what the instrument cluster center display shows for the XM audio source when it's working properly. Most of the time, however, instead of displaying the channels, the display is just black.

 

That is the display I am getting too when I select Audio in the OBC display.. the list of stations to choose from (to allow selecting a station with the stalk rather than having to look over at and operate the PCM). As I use the voice control option to select source and station, I've never used that mechanism so I cannot say if its always been working. At the very least I would expect the default test station to be listed, right?

 

I rarely use the center stalk to change channels (I keep my XM on pretty much 1 channel all the time) but when I have it's always shown the station names like in your picture. 997.2 C2

BTW, I'm in the LBC too.... Belmont Shore.

 

I just checked my 09 C2S and it is blank too when in the XM mode. Other bands seem to work fine. I know it used to work in XM.