KC,
I agree with Ken, is it possible to get a software upgrade on my 2010 Tahoe to get better MPG? mine built Nov 2009

Thanks
Guss

 

Ken, Guss,

In an ideal world, every new improvement would be backwards compatible to 08. But these aren't laptops and this system isn't a carbureted small-block V8. The stuff that absolutely has to be made available to past model years is, but the resources just aren't there to do it all. I wish I had a better, more detailed answer, but that's the best I can do. Those kinds of decisions are way above my pay grade. Just know we're not talking about incremental cost here. The validation/proveout process for new features on existing product is really expensive, and therefore, not approached lightly.

 

Thanks KC for your feedback, much appreciated