Does anyone know how to disable the legal warning when I start the car? It makes no sense to me that I have to agree to this everytime I start the car. Thanks

If your talking about the Nav screen. Isnt that the truth, a real pain. My F250 is the same way. I'd just assume it go straight to radio if possible

You can buy the lockpick nav bypass module.

My 07 GX does it automatically. I believe when I purchased the latest DVD disc last year, the software included this as its been standard on all the 08-09 Lexus models.

Yeah, if you buy the 7.1 nav update, they changed the I agree screen to a 15 sec. warning screen that then automatically proceeds to your map.

Unfortunately the warning button is still there on your gen4 system, that's found in 2005-2006 GX470's, even with the upgrade to 7.1. Hopefully 8.1 will fix that!