New to 4Runners and new to the forum.... I purchased a 2006 Limited, 4wd, V8 last weekend, I was not familiar with all the options available. I believe my 4runner is equipped with Xreas and RAS, but not positive. There is a small button at the top of the center console that is missing, it is no more than 1/2" square, could this be the RAS? Is it intended to be depressed or does the button rotate? I am planning to drive over to the dealer to order a replacement knob or button or whatever it is that is missing but wanted to see if I could get some info from the user here. Also, is it common to abandon the Xreas and RAS systems in favor of a full suspension lift kit? I do want to lift and level the vehicle and would like to run 285/70/17 wheels. Any advise would be appreciated.