I had to have cam and lifters replaced on my 2008 5.3 Suburban at almost 5 years and 70,000 miles. That's over a $5000 repair (at a dealership albeit) that was covered under the 100k power train warranty and would now no longer be covered. So you know what I think GM should keep doing.
According to this website the 2016 changes are minimal.
Essentially they get the intellibeam headlamps and lane keep assist. A few color changes.
http://www.gmfleetorderguide.com...
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