Shaunc11

I've been putting up with this issue (vibration at highway speeds) since my 14 Z71 was new back in June of last year. It's been into the dealer multiple times. Balanced, Road force balanced. Rotated..no luck. Dealer installed Nitto 20" tires and gear rims. Dealer sheared off a lug stud when first trying to fix it and took 3 weeks to get a replacement. They have difficulty un-mounting the rims every time I take it back to the point the service advisor tells me she HATEs my rims. Dealership has gone as far as asking that I take it elsewhere to see if someone else can balance it to see if the dealership's machine is "off". Unacceptable. This isn't just an annoying vibration. Drinks in the cup holder either have to be capped or I run the risk of wiping them up eventually. The passenger seat shakes VISIBLY. It is back in the shop now at another dealer with only 300 miles left on the bumper to bumper and I'm being told that GM knows there is an issue and it relates to the change from a soft to a hard bushing in some part of the vehicle which transfers vibration instead of dampening it. Another employee at the dealership claims that that run of Nitto Tires has had issues. Needless to say I've witnesses so much dancing around this that I feel like I'm at a ballet. Sad. Because otherwise I LOVE THIS TRUCK! Enough that I bought my wife an identical model. Which DOESN"T vibrate! I suspect the warranty will expire and I will be forced to pay once this issue is actually identified and is able to be resolved.