AARIVER Posted October 5, 2016 Share Posted October 5, 2016 I just brought the CD for my 11' IS250 and cant figure out how to update it any videos out there for this model and or instructions? Quote Link to comment Share on other sites More sharing options...
1990LS400 Posted October 6, 2016 Share Posted October 6, 2016 Assuming you are in the U.S., your navigation system can be updated by a Lexus dealer using a master DVD and the proprietary navigation update tool through the USB port. Take a look at http://www.lexusnavigation.com/what-to-order/ Quote Link to comment Share on other sites More sharing options...
bazzle Posted March 9, 2017 Share Posted March 9, 2017 Mine with ML (2011 IS350 F) (Oz model) 2 small holes either side of clock panel under GPS. Insert the 2 screwdriver looking pin tools from the boot tool kit and press in to release spring clips and work until panel pops out. Go to info button on side of GPS, maps, and there will be an eject button. Remove Navi DVD. Replace with newer version. Wait until it loads up. Test. Then replace clock panel. I got my Oz DVD from this site. https://www.gpspower.net/toyota-lexus.html 1 Quote Link to comment Share on other sites More sharing options...
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