Have had the GX460 one day 100 miles on it and the nav screen has frozen twice. Had to pull over turn off then turn back on the car. Other then the obvious which is contact dealership any other suggestions

 

you can reboot the nav by holding down the PWR button for the infotainment system. At least thats how it works on the 3IS. You dont have to restart the car

 

Come on over
https://www.clublexus.com/forums/gx-...eneration-219/

 

There is a firmware update available at your Lexus dealer that will fix this problem. I've had the same thing happen on mine and asked the shop foreman about it a couple weeks ago when I had my LS 460 in for service. I will take mine in the next time I have it in for maintenance.

 

is the navi SD card based in the US as it is here in the middle east?