How do I open the fuel door on the Honda Civic? Scarlett December 22, 2024 07:07 Updated Locate the mini door that covers the fuel cap on the outside of the Honda Civic. Gently press down on the mini door to pop it open. To close it, gently push the cap back in until you hear a click. Related articles Where is the parking brake on the Honda Civic? Do I top up diesel or petrol for the Honda Civic? How do I adjust the side mirrors in the Honda Civic? How do I open the boot of the Honda Civic? How do I switch on the headlights for the Honda Civic?