Nomad's Lexus GX 460 - aka - Land Cruiser Prado 150

 I have a 2013 Lexus GX460 with the premium package (basically a Prado 150 or 5th Gen 4Runner chassis) and while it does have KDSS, locking center diff, traction control, 4-lo etc it does not have the Toyota "Multi Terrain Select" option.  New Module with MTS This module changes the way the traction control system works, tailoring it for various terrain types: Mogul, Rock, Mud and Sand, or Loose Rock. This is a very easy fix though, by just changing the traction module in the dash. A few bolts, screws and dash panels are removed and the module is swapped. Easy as that. There are plenty of writeups online.  About an hour moving slowly and I have a nice upgrade for offroad use. A little intelligent electronic intervention only serves to make the GX460 more capable. As they say: Better to have it and not need it than need it and not have it.  Useful and inexpensive compared to many other options often advertised. 

 Without getting into arguing about Toyota "Lifetime Transmission Fluid" claims, or the ususal debates... Lets just say I read and made my decision based on logic, mechanical knowledge, coupled with experiences of my own and others and my comfort/time/budget levels...  I chose the quick maintenance option of the ATF drain and fill method. Why? It is quick, easy, least intrusive, and introduces nearly no known issues. I have high mileage vehicle: 170k and I have no record of the ATF being serviced before I bought it.  I plan on getting another 100k out of it but with all the other maintenance time I've spent recently I wanted to hold off on a full pan/filter/gasket job. I can tackle all that later. 3-4 drain and fills will swap out a lot of the old fluid and only takes about 30 minutes and uses 2 sockets.  You can do this on a cold vehicle all in 1 day (drive a few miles and let it cool) on consecutive days, or with each oil change or whenever you find time.  Just remember