Does anyone have a drivers seat that vibrates during highway speeds? I have a 23 ES350 and just noticed it after my first highway drive.

 

Sounds like you have a tire out of balance or a thrown belt in a tire. If you're feeling it in the seat it's usually a rear tire.

Your Lexus dealer will correct this for you at no cost.

 

Thank you! I have an appointment next Saturday and I will be sure to mention this to the service tech.

 

Agree that is is a balance issue with tires or alignment issue.

 

If you feel a vibration through the steering wheel it's likely related to the front wheels/tires. If you feel it in the seat, it's your rear wheels/tires.

In the meantime you could physically inspect your wheels and tires on the back to see if there is any obvious damage. Make sure the lug nuts are all there, no nails sticking out of the tire, etc.

 

Make sure they road force balance those wheels especially if they are the 19s which are a bit temperamental.

 

Let us know what the dealer reports.

 

By chance could he be referring to the lane guidance and lane deviation warning feature that will vibrate the steering wheel and possibly seat?

 

Only the steering, not the seat.