I'm still searching for a updated NAV DVD (2017 - 2018). The Dealer was no help. I found a Lexus website where you could order one but it turned out to be only European or Russian version. Where can I find one ??? HELP !! Got one off ebay and it didn't work ..... The part # on the current DVD is 86271-53023 below that # 464210-1160 U33 D Data Version 08.1