Using these mirror covers is easy. First, make sure your vehicle is turned off. Gently remove the old mirror cover if it's damaged. Then, align the new OLM mirror cover with the turn signal cutout and carefully attach it to your vehicle's mirror. When installing, be careful not to force it too hard to avoid breakage. As for maintenance, you can clean the mirror covers with a mild car - cleaning solution and a soft cloth. Regularly check the attachment to ensure it stays secure. If you notice any issues, such as loose parts, get them fixed right away.