Are you possibly driving on worn shocks and struts?
Like most safety-critical chassis components, shocks and struts do wear out over the course of normal operation.
Both shock absorbers andstruts keep your vehicle from bouncing around. Though the two terms are often used interchangeably — and they basically do the same thing — shocks and struts are different parts. A vehicle either has a shock or strut at each wheel — not both — and a shock cannot replace a strut, nor a strut replace a shock. Some vehicles have struts on the front axle and shocks in the back.
Although there are many other factors that can cause tire wear, such as climate, road surface quality, and your driving style, improper tire alignment is the main cause to irregular treadwear and can cause your tires to wear unevenly and prematurely and can even cause driver assist systems to malfunction. Common irregular tire tread wear conditions from improper alignment include the following: Heel/Toe wear, Feathering, and Camber wear.
If you are experiencing irregular tire wear, handling issues, or an off centered steering wheel, an alignment inspection or correction should be performed. Even without experiencing any indicators of an Alignment related issue, most vehicle manufacturers recommend checking your alignment at least annually or at every seasonal tire changeover and corrected with the purchase of new tires.