Jcross13, thx, what does the “e” update mean? Is it a specific software ECM update to the trans? My dealer updated both my engines ECM and the trans as well, and yes, fast as hell for a heavy SUV, but the trans still searches for a gear occasionally when at the cusp of needing to downshift.Interesting to see more people with the issue since all newer Armadas should have automatically had the "e" update done. I have an early 2017 and ever since the update to "e" it's been fantastic. The only real complaints I have about my truck are 1. the gas mileage (but I knew that going in it was a trade-off; it's a 3-ton tank that's pretty darn fast) and 2. the nav/entertainment tech (so old and lame especially for this price and how nice the rest of the interior is).
As for the before-2017 owner (first gens), this transmission issue won't affect you as you have a different set-up.