Although your Tesla does not need an annual maintenance, it should be checked regularly to make sure it is in tip top shape. Suspension components should be checked periodically to make sure they are in good working order so that they do not wear out the tires prematurely or cause feathering. A proper alignment check should be performed as well to make sure the vehicle is in the correct spec, particularly due to the fact that we have many potholes in our area. Lastly, you want to make sure your brake components are inspected as well, your Tesla has regenerative brakes so therefore the brakes rarely need to be replaced. However you do want to make sure you are having the brake fluid looked at every year and changed by the two year mark.