Old Tahoe wheels will rub on brake caliper since it is a different design. Since GM went to fixed design where pistons on both sides. The side by the wheel has extra boss sticking out. Old design was a sliding caliper. New one is not.
My Yukon was built June 2020 and at first it had a high idle when hot. Rough idle was not often. Now that I have 13700 miles. New engines do not idle smooth because of have to run lean at idle. Change your oil early first few times. I did my first 3000 miles and second with 4000 miles
I got the notice for mine. Not GM only it happens to all of them. Nobody is perfect. I love my Yukon. Every first year model vehicle has issues to work out.
I have almost 11,000 miles on mine no problems with engine. Mine was one of the first ones built. Have had it for a year now. Run premium in my 6.2 and might get flamed but doing my 4th oil change. It runs smooth and want to keep it that way. I would have kept it.
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