Shu

Something else to try, Slip the transmission up into neutral and let engine idle for a few seconds while traveling at that speed.

skylineflyer, Thank you for posting. Yours is significantly more than my slight buzz. I agree this is not something GM should ignore. Over time a shake like that will have a negative affect on lots of other parts. Can you test the water bottle on the transmission tunnel for me? And then flip up the console and place the water bottle on the seat and see if it still shakes like that?

No argument there, vehicles are very expensive and you have the right for it to perform how you expect, If not, then you have the right to sell it and buy something else. It seems this is the direction you are headed so my only advice is sell it sooner rather than later to minimize your loss. For what it is worth, I've owned Pontiac, Chevy, Buick, Ford, Dodge, Honda, Hyundai, and not a single one of them was perfect from day one to final day I owned them. I have a 2011 Mustang GT with 20000 miles and it has galvanic corrosion (rust caused by dissimilar metals) on the leading edge of the aluminum hood and Ford states this is normal. The Hyundai had more electrical switches replaced than I cared to count. The Honda puked oil out of every engine gasket when their crankcase vent (poor design) froze one winter. The best vehicles I've owned have been my 2005 Silverado and 2011 Camaro. I put a lot of miles on each of those with only small issues. Back to the vibration issue, like I said, mine has a slight buzz that is isolated to the cup holders. Yep it is annoying when my Mt Dew fizz is gone on a long drive. Other than that I can ignore mine 99% of the time. I too would be really annoyed if it were worse like some of the videos I've see. It's my nature though to try to figure out or help figure out the source of the buzz because I love everything else about this truck and have driven enough other brands to know better than put my dollars on the other brand trucks. Hopefully someone else is willing to help isolate the cause will be kind enough to check the water bottle on the transmission tunnel.

Mine has a slight buzz similar to the video. Mine has no vibration if I place the water bottle on the floor instead of the cup holder. Have you or can you try this?

I posted this earlier... those who are finding vibration in the cup holders, cam you place a closed water bottle in the cup holder and watch it shake then place it directly in front on the transmission tunnel and see if the shake disappears. I am not by any means saying the vibrations doesn't exist. Mine has a slight buzz in the console cup holder area but none on the floor directly in front. I believe some of the issue is the structural design and mounting of the seat and how it reacts to the much stiffer frame.

K&N drop in. I clean it once a year. While it is drying and I'm letting the oil penetrate (usually a couple of days, then I wipe any excess oil to keep the MAP clean), I run a stock paper. We ran K&N in our dirt race cars until this year and have swapped over to R2C to give it a try. After years on the dirt track we never found ANY dust on the air cleaner base beyond the K&N filter. It was just the cost and time of cleaning and oiling weekly that made us consider the R2C. A few races and I'll know if the R2C is a keeper.

I have the slight shake in the cup holder area of my console. I do not feel the vibration in the steering wheel, headrests, dash, etc. It isn't too bad, sort of annoying when the little cap ring on the water bottle starts rattling, but I really do not notice the vibration any more than that. Mine has this same vibration at all speeds over 20 mph and therefore does not seem to be related to vehicle speed. Today I decided to test the water bottle in other areas of the truck. I set it on the transmission tunnel right in front of the console/middle seat and low and behold the water in the bottle was steady. Anyone else try this and were your results the same?