Porsche Macan PCM stereo only plays from subwoofer after replacement on Porsche Macan

Some Porsche Macan owners report experiencing issues with the PCM stereo system, where audio only plays from the subwoofer after a replacement. These problems may stem from the PCM unit itself or a software update that occurred during the replacement process. Some users have noted that the PCM update issued by Sirius XM Radio has caused functional issues in various Porsche vehicles, including random shutdowns of the PCM unit. Additionally, there have been settlements regarding PCM issues affecting specific Porsche models from 2010 to 2016, which could be relevant. Solutions for these PCM-related problems can vary, ranging from software updates to complete PCM unit replacements, and in some instances, dealers have even suggested replacing the transmission to resolve known PCM issues. It is advisable for owners to verify whether the issue began after the PCM replacement or software update, check for applicable recalls or settlements, and consult with a Porsche dealer or reputable repair shop for effective diagnosis and resolution.