Steering wheel vibration after 55 mph

Hi, my name is Devin. I am an auto repair expert with the Car Genius team here at RepairPal. So sorry to hear you're having trouble with your vehicle. The vibration you feel in the steering wheel of your Avalon after 55 mph could be caused by a few things. The most common causes are wheel balancing issues, uneven tire wear, or even a problem with the suspension or alignment. Since it gets worse at higher speeds, it's likely related to the balance or condition of the tires. I'd recommend getting the wheels balanced and having the tires inspected to see if there's any unusual wear. If you need more advice, have any other questions about your vehicle, or would like to get connected to a RepairPal Certified shop near you, we have you covered. Give us a call at 877-913-1554, and we will happily help you out!