Abstract: A tire sun shield for use upon a load supporting wheel of a parked vehicle is formed from a one-piece member having a front face of a diameter generally corresponding to that of the tire to be shielded and an integral axially extending skirt joined to the front face along its outer periphery. The lower portion of the shield is cut away across a chord of the front face and through the skirt, forming opposed axially extending gripping edges on the skirt which are spaced from each other by a distance slightly less than that of a normal "load flat" of the tire when the tire is supporting a normal load. After the load on the tire is removed to permit the shield to be placed over the front face of the tire and then is reapplied, the gripping edges on the skirt bite into the tire at the opposite ends of the load flat to firmly retain the shield in position on the wheel, and inhibit its removal by wind force or for purposes of theft.