GM owners - Have you experienced the "Chevy Shake"?

Yes. Originally thought it was the roads I was taking daily (lots of construction), but then took a road trip on smooth highways and realized it was my truck. It only occurs at a certain RPM range (1800-2100) but it's annoying as hell.

Is this happening to brand new GM vehicles?

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hopes to get you past your warranty period.

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This is how they do it. I had an 09 Tahoe with the last infamous hydraulic lifters issue. They started giving me trouble right before my warranty ran out. They did something and told me it was fixed. 2,000 miles later, and now out of warranty, they suddenly determined that I needed the heads rebuilt. It took weeks of wrangling with Chevy to get them to cover 50% of the repair. Should have been fixed the first time.

I had this issue on my GMC once. Was perfectly fine when I bought it but then gradually started with the vibrations at certain rpm/speed ranges. Finally figured out it was the u-bolt on the drive shaft. One way to isolate the problem is to see if you get the same vibrations when accelerating vs coasting. If they’re different then you probably need to take it in to get the u-bolt tightened. That was probably about a year a half ago and been completely fine ever since.

Edit: This was a 2017 GMC Sierra.

It's a problem for the 8 speed transmissions from 2017-2019. About 1 in 5 of the models with an 8 speed have a shake problem. No issues with the 6 or 10 speeds.
Chevrolet won't replace the 8 speeds until after they unsuccessfully try a full flush. For some reason, that seems to resolve it in many cases.

Oddly enough, the programming for the 10 speed co-developed with Ford seems to be wrought with issues in the F-150. No issues in most other Ford models, and very few in the GM products that use the same hardware.

Sound like the ole Dodge issue from a few years back that they refused to admit or work on

Only problem with my ‘15 Silverado is the damn seat warmer, “butt part” keeps going out..

I can live that, back part still works..

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Is that like the Ford death wobble?

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Jeep is who you're thinking of

Yes I’ve experienced it, 2016 Chevy. When I bring it in they say they can’t replicate it because it requires speed in excess of 70.

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Is that like the Ford death wobble?

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That's the front axle shake. It happens on a lot of trucks with solid front axles, but it's prevalent in Fords because of cheap axle and suspension components.