How do you open the door to the gas cap in Ford Fusion?

To open the gas cap door on a Ford Fusion, locate the fuel door release lever inside the vehicle, typically found on the driver's side near the floor or on the side of the dashboard. Pull the lever, and the fuel door will pop open. If your model doesn't have a lever, you can gently press on the rear edge of the fuel door to release it. Once open, you can unscrew the gas cap to refuel.