Porsche Communication Management (PCM) Infotainment Constantly Reboots After Update
- A 2021 PCM software update is causing the units to constantly reboot.
- The reboot cycles drain the car's battery and can destroy the infotainment system's harddrive.
- The update was for Sirius satellite radio but affects owners that aren't even subscribed to that service.
In May of 2020 some Porsche owners were sent software updates to their infotainment systems that caused the units to constantly reboot. The update was realted to Siruius satellite radio, but even owners not subscribed to the sevice started experiencing problems.
According to a class-action lawsuit the problem happened to any Porsche vehicle equipped with an XM radio antenna and Porsche Communication Management (PCM) system 3.0 or 3.1 that received the Update.
Damage Caused by Constant Reboot Cycles ∞
The endless reboots are annoying and can cause a loud static noise during each start-up. But beyond those annoyances, there are concerns about drained batteries since the system continues to reboot even once the car is turned off.
And the constant reboot cycles can damage the system's internal hard-drive, meaning the owner is on the hook to replace the entire PCM unit at a cost over $2000.
Resetting the PCM ∞
Some owners have had success getting rid of the reboots by manually resetting the PCM system. Warning: this will remove all your information from the system, including any saved music, stations, or phone information.
- Soft reset by pressing and holding the INFO button for 10 seconds and wait for reboot
- To get to car options press the CAR button followed by OPTION button
- To reset the PCM select SET PCM system > Reset PCM > Vehicle Handover and confirm the two warnings.
Lawsuits Regarding This Problem
Lawsuits about this problem have already been filed in court. Many times these are class-action suits that look to cover a group of owners in a particular area. Click on the lawsuit for more information and to see if you're eligible to receive any potential settlements.
Bowen vs. Porsche Cars N.A., Inc.
Case Filed
A Porsche infotainment system lawsuit alleges the Porsche Communication Management (PCM) units received software updates that caused permanent damage to the units. The alleged damage was caused on or about May 21, 2020 and allegedly causes the communication units to constantly activate and deactivate.