There should be no scheduled maintenance the first two or three years, other than maybe tires and oil change, but skipping those don't "cause defects". Typical

There should be no scheduled maintenance the first two or three years, other than maybe tires and oil change, but skipping those don't "cause defects". Typical faults that cause failure are; uneven brake force, badly aligned headlights, uneven tire wear, play and wear in suspension components, and so on.