How do you replace the gas tank door on a 2002 Grand Prix?

To replace the gas tank door on a 2002 Grand Prix, first, open the gas door and remove any screws or clips securing it in place. If the door is attached with a hinge, carefully detach it from that hinge. Once removed, align the new gas door with the hinge or mounting points and secure it in place with screws or clips. Finally, test the door to ensure it opens and closes properly.