Sam7768

Hello All,

I pulled Nav disk from my 2004 GX470 (Manufacturing date 12/03). I read somewhere that 2003/2004 disks were marked either EAST or WEST. Mine has no such marking. So, any help in identifying the Gen of my disk would be greatly appreciated.

chiph9

This Lexus site has a link to a pdf that shows the different generations of nav system.

https://support.lexus.com/s/article/...w-what-ha-8258

The 2003-2004 GX470 has gen 2 and 3 nav systems. The newest data is from 2013.
Honestly, I wouldn't bother updating it - it's just too old to bother. I have the newest (lastest) disc and it will show me being offroad fairly often because it doesn't have the road data.
I would look for a good cellphone mount and use Google or Apple maps.

Funny thing - they still list your disc in the parts system, but you'll choke on the price - $2170

https://www.mylparts.com/oem-parts/l...isc-8627133032

Chip H.

Sam7768

Thank you @Chiph9 for the details. very helpful,

Sanibel

Just bought the newest available dated 2012 for 30 bucks for the pair, east and west!