I have a 2016 Silverado 3500 high country. Same issue, the adjustment nut is backing out allowing the sloppy steering.
Dealership tried the temp fix of loc-tite and retorqing but it has loosened up again.
Dealership has no answers, parts are on backorder with no estimated delivery date.
Today I handed them the keys saying I refuse to drive it unless the service department will do a safety on it. They promptly put me in a rental from Enterprise.
I don't know how the system in US works, but here in Canada, Transport Canada has a reporting system for consumer to report safety defects in vehicles, tires, and child seats. I reported my truck yesterday and am waiting for a call back as they gather more info. I would assume the agency for Canada and US could share info and order a safety recall so we all need to get on board with this.
I'll keep everyone updated.
Btw, my truck is from Flint..... it must be the water....
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