My 2915 Equinox does the same thing "Excessive Shaking" when driving at highway/high speeds or slowing down to stop. I have had my tires replaced, rotations, balances, brakes replaced, etc. No one can diagnose a problem then I read the Article about GM's 2015-2019 "Chevy Shake". My model wasn't listed in the article by does the same thing. I also have issues with it hydroplaning in wet weather. I have to go super slow. I've talked to another owner that has a 2015 Equinox and it does the same thing! So frustrated. Needs to be fixed!