Sealed bearings in the front and rear hub assemblies are what these models are equipped with. Wheel bearings will not require servicing in most cases. However, the car should be checked for the wheel bearings every time it is raised. You need to spin each wheel to check if there is noise, rolling resistance and free play, when your vehicle is firmly supported on jackstands. Meanwhile grasp tightly the top of each tire with one hand and the bottom with the other while moving it or out on the spindle. If you notice any perceptible movement, remove the front wheel and test the bearing free play by using a dial indicator. Replace bearing assembly if excess free play exists and bearing noise, too.