My story - 2015 Tahoe LTZ - and from day2 have had ride problems - talked to big GM and they originally told me that since all the Tahoes on the lot did it - that this was "normal" but yet if you take an LT with no magna ride, I found the ride to be smoother. This is a total mess up with GM. My Tahoe has been in the shop for 3 weeks and they have swapped just about everything they could think of- but yet big GM says this is normal. The ride is really bad, I have found a way to make it go away for a short period - disconnect the negative side of the battery and it seems to reset the "memory" - but after 100 miles the ride is rough. I am telling all that have this issue - call GM, because after the many calls they received - they finally admitted to me that there is a lot of complaints. It is very sad, I have been a GM buyer for many decades, after this entire run around and a 70,000 dollar SUV that rides rougher than the Captiva (the rental they gave me)...This will be my last GM, regardless on how they fix it. Maybe if this was life threatening, they would react, after all they are setting the priorities based on lawsuits. I think my biggest frustration is that big GM was trying to convince me that this was a normal. This will go back in the shop on Monday - 14 July.