Congratulations on your first car! To open the gas tank on a 2020 Dodge Charger, locate and press down on the fuel door release button located on the driver’s side door. You may then walk back to the rear of your car, open the fuel door, and unscrew the gas tank cap.
Should that ever fail to work, there is also an emergency fuel door release located in the Dodge Charger’s trunk on the left side, underneath the access cover on the inner trim panel.