When your tires are first mounted to your wheels, the technicians should make sure they are evenly balanced. However, tires may become unbalanced over time due to uneven tire tread wear, hitting an obstacle, not being driven enough, or simply the shape of the tire. Unbalanced tires can cause your vehicle to vibrate as you drive; this usually happens when you’re driving faster. You can often tell whether a front or rear tire is the problem based on where the vibration is located! Vibration in the steering wheel is likely due to a front tire being unbalanced, while vibration in the seats or floorboards is often from a rear tire.