Hello,

I am currently having issues with 2015 Tahoe with 75k Miles and I'm completely lost and hoping someone here has had the same issue and can help me. about 2 months ago I notice a vibration in the steering wheel and pedal when brakes were applyed, and as everyone would have suggested I thought it was a warped brake rotor. I replaced all brake rotors and pads. Once that did not fix the issue, I took the truck to the dealer and they told me it was because of the tires that one tires had high road force. I took the truck to Discount Tires to have the tires rotated and balanced and ask them about the vibration. They told me that the tires would not cause a vibration only when braking and they think it is something else. Everything under the truck feels solid including Ball joints, Tie rod end and I feel no play in the driveshaft. It really feels like it is coming from the backend but at this point, I am unsure and open to any suggestions. Thanks ahead time and maximum respect for helping.

 

If it was tires I would think a rotation would make the problem move from back to front. If it doesn't move I would look for another cause.