I feel a vibration in the steering wheel above 55 mph in my 2011 RX350, 72,000 miles, new Bridgestone 18 inch tires. The vibration seems to last five seconds and then slowly goes down for about 3 seconds and then builds back up again for 5 seconds. The steering wheel does not shake, I can't feel the vibration in the seat or on the shift lever, although if I listen closely I can actually hear the vibration building up. I had the tires balanced at Discount Tire Co using their Hunter Force Balance Machine and the vibration is still there. I went back a week later for a re-balance, the vibration is still there. I took the car to a auto repair shop, they kept the car for a day and were unable to identify the problem. Anybody else have this same problem? Any suggestions? Thanks

 

I have battled with this issue the last 2 cars I've owned. It really can be multiple things. Such as the mount for the driveshaft, engine mount, diff mount, tires or bent rim.

My current car it was the tires had the steel inside that was bent. Both tires that had the issue was on the front, steering didn't shake just the same cyclical vibration.

On my previous car I never figured it out.

Usually its wheels or tires though.