Vibration when on smooth road

[Dave Roach]

2017 Yukon rides like going over rough road, like going over speed strips. Put on new tires thinking bad spot on tire was problem. Has 36,000 miles.

[JimCost2014]

20 hours ago, Dave Roach said:

2017 Yukon rides like going over rough road, like going over speed strips. Put on new tires thinking bad spot on tire was problem. Has 36,000 miles.

Welcome to the site!

 

More information helps, wheel size, Yukon ????, what type of tires did you put on, how long has it done this, have you had any transmission issues?

[Rlawing]

Same same. Ours was a combo of rear shock failed, and the Transmission Flush tech service bulletin. Both accomplished at dealership under warranty,  and ride smoothed out immediately.