Nav upgrade Help...
Happy new year first,
I got a new Navigation Denso disk ver 6.1 (2006) the ol one was 2005 for my 06 RXH, when I put that disk it says it is not suitable, which cant be...
Is there a specific prosedure that I should follow?
Thanks
I have my 400h one year ago in August, 18,000 miles.
I replaced my disk once, don't remember the version, it did not change much that I could see. It did show up as the new disk. The information is on the nav screen unded dvd
PT219-GEN04-01
I'm thinking about upgrading my 2006 RX400h Navigation DVD. Any big changes with the latest Generation 4 v6.1 DVD?
You can find the installation procedure here ....
http://lexus-parts.com/partdetail.as...oduct%20Notes:



