Quitting the Game During the Update Installation Process (Valid Only for Update 1.11 or Older)
If you quit the game during the installation process of a Gran Turismo 6 update (by pressing the PS button or any other way) the installation may fail. Please make sure not to end the game by pressing the PS button during the installation of an update.
If the installation fails due to the above mentioned situation, the data can sometimes be restored by restarting the game or by deleting the installed Game Data files from the "Game Data Utility" folder in the PS3™ XMB. For details, please refer to the "Related Links" at the bottom of the page.
This issue only occurs during the installation of "Update 1.11" or older. After the installation of "Update 1.12", planned to be released in September 2014, this issue will no longer occur.