I just purchased a Certified 2020 CX-5 Grand Touring Sept 2024.. One issue I have is intermittent vibration felt in the seat and steering wheel while driving on the highway. It doesn't happen the entire time, just when driving over rippling parts of the highway. The dealership did correct the balance in the wheels but still feeling the vibration. I'm scheduled to bring it back this week for them to figure out what else could be the issue. Any thoughts from the Mazda CX-5 experts on what else could be the issue? Thanks!