This lever will be located on the front floor area near the driver’s seat. Reach down with your left hand while seated in the driver’s seat to locate it and pull up. You should hear a popping or clicking sound, indicating that your fuel filler door has sprung open.
Once the door is open, you simply need to twist the gas cap off by turning it counterclockwise (to the left). After refueling, replace the gas cap by twisting it to the right until it clicks into place, and then press the door shut to seal it.