Just ordered a 2018 Navigator after having a total of 6 Denalis and Suburbans. The 8 speed trans has been a night mare for myself and many others
It could just be time for a change after that many GMs, which is not unreasonable. Ford has nice products too.
That said, it seems to me that Ford and GM are both playing from the same deck of cards and it's irrational to expect a materially different reliability experience from one or the other. At least in the aggregate. Both are manufactured primarily of domestic components, on domestic (or Canadian?) lines using union workers. Similar price points, the shareholders of both companies have similar profitability expectations. I'm being broad here, but the markets are extremely efficient and you can rely on every company to use their resources to maximum advantage.
If you were defecting to Toyota, you might be able to point to some substantive reasons why you can expect the product to be better. Or South Korea, which is working with a completely different relationship model between car companies and workers.
Enjoy your Navigator; the new model looks great to me. I bet you'll have a couple issues with it too, but it will probably be more reliable than previous vehicles you've owned, which would also be true if you bought another GM. They are all much better than they used to be.
