TSB: TOYOTA MODELS EQUIPPED WITH PREMIUM HDD NAVIGATION (AVN/AW-EMV) SYSTEM WILL PERIODICALLY REQUIRE AN UPDATE TO THE GRACENOTE DATABASE. GRACENOTE INCLUDES DETAILED INFORMATION FOR SONGS (EG., GENRE, ARTIST, SONG, TITLE, ALBUM NAME, ETC.). THE GRACENOTE UPDATE WILL BE INCLUDED ON THE "USB DRIVE NAVIGATION MAP UPDATE" SST. A GRACENOTE UPDATE MUST BE PERFORMED BEFORE A NAVIGATION MAP UPDATE. A NAVIGATION MAP UPDATE IS NOT REQUIRED TO COMPLETE THE GRACENOTE UPDATE. USE THE PROCESS DESCRIBED IN THIS BULLETIN TO PERFORM THE UPDATE.