Supersedes Technical Service Bulletin Group 91 number 11-25 dated November 29, 2011. The navigation DVD or other CD/DVD cannot be ejected. There are no DTCs stored in the corresponding module. The eject button is not stuck. When the eject button is pushed, the drive does not sound as if it is trying to eject the CD/DVD. Vehicles with DVD-based navigation systems now have the navigation DVD installed during production. To prevent theft of the DVD during transportation, the eject button of the navigation drive is disabled. The navigation system itself (e.g., route guidance) functions as specified. The eject buttons of vehicles without DVD-based navigation systems are not disabled during production, but could behave as described in the Condition section of this bulletin. The eject button can be enabled through Guided Fault Finding.