A few questions as I narrow down the the model/year I am looking to buy. Thinking 20012-2015.

What year did the GX transition to the timing chain vs the timing belt?
Also what year did the keyless entry transition to the push button start?
I am also most interested in the non-air suspension version.What was the first year that this feature was not a standard option?

Any other thoughts bee\tween model/years is welcome/

Thanks in advance.

 

I believe the answer to all of your questions (except the air suspension) is 2010.

 

I don't believe air suspension has ever been standard, at least not on the 460. I want to say it's only on the Premium model through 2013 and Luxury model 14+.

 

Both of these are correct. So long as you buy a GX 460, which debuted for the 2010 model year, you'll get push button start and a timing chain. If you get a base model 2010-2013 or a base/premium model 2014+ you won't have air suspension. The 2010-2013 premium model and the 2014+ luxury model will have air suspension. You can always look for the height and damper adjustment buttons around the shifter if you aren't sure.