One problem related to software has been reported for the 2009 Volkswagen CC. The most recently reported issues are listed below.
Yesterday I took my vehicle to the vw dealership to be serviced because the epc and engine lights were on. I had to have 3 ignition coils and 4 spark plugs replaced on my vehicle at the vw dealership and the computer software updated. Today the engine light came back on. The epc light came on but went off after I turned the car off and restarted it. The car had trouble starting and lost power as I was driving on a city street. The car shuddered a bit as I was driving on a city street.