Picked up the Denali again this afternoon. This time, I took a co-worker with me in case I went postal and snapped on them. They replaced another tire as it was "out of spec". So far that's 4 tires replaced for the low speed vibration (24-45mph).
We pulled out of the bay, drove one mile and went straight back to the service line. Vibration was so bad my coworker said "there's no way this is right!"
The general manager of service got in the car with us. He drove the same route and acknowledged the vibration. He said "I honestly don't know if we can do anything else to make this better Brandon. Let's grab another one off the lot and drive it."
We all jumped in a 2017 Denali Yukon XL. It had 22 miles on it and the vibration was actually WORSE than mine. When we returned he sent that new one straight to service.
They are going to try and work a deal for a new set of Michelin tires and try that. At this point, they pretty much said I would just have to live with it.
Here is the supporting service info from the last 2 visits. One for vibration and one for the "drone"
Sent from my iPhone using Tapatalk