Where is the gas cap button on a Honda Civic?

Typically, you don’t press a traditional gas cap button on a Civic. The fuel door is usually opened from inside the car with a release lever or switch, and many newer Civics use a capless fueling system with no gas cap to remove. The exact location depends on the model year and trim.

The Honda Civic lineup spans several generations, and the method for opening the fuel door has shifted slightly over time. This guide outlines the most common locations and differences you’ll encounter, so you can refuel smoothly no matter which Civic you drive.

Common locations to access the fuel door

Below are the places you’ll most often find the fuel-door release. The exact spot depends on your Civic’s year and trim, so start with the list that matches your car.

• Floor-mounted lever to the left of the driver's seat, near the door sill or footwell.


• A small button or switch on the lower dash or kick panel on the driver's side (less common, but present on some trims).


• In many newer Civics with capless fuel systems, there is no external cap to release—the door itself opens after pressing or pushing the door when unlocked.

If you’re unsure which setup your model uses, consult the owner's manual or your dealer for model-specific instructions.

How to open and fuel a Civic, with and without a cap

Use these steps to access the fuel door and begin refueling. The steps differ slightly if your Civic uses a traditional cap or a capless filler.

1. Ensure the car is unlocked and, if needed, seatbelts are unlatched. Locate the fuel-door release as described above.


2. Activate the release to pop the fuel door open. If your car has a capless filler, the door will swing open or pivot, ready for fueling.


3. 
   If your Civic uses a traditional fuel cap: unscrew the cap from the filler neck and set it aside.
   If your Civic uses capless fueling: proceed to insert the nozzle directly into the filler, following standard fueling procedures.
   


4. Fuel as usual. When finished, close the cap (for traditional caps) or simply close the capless door until it latches.

In most modern Civics with capless fuel systems, there is no gas cap to remove, and the door must be closed firmly after fueling to maintain the seal.

Capless fuel systems: what to know

Understanding capless fueling in a Civic

Many Honda Civics produced since around 2016 use a capless fuel-filler system. There is no external gas cap to unscrew. When you open the fuel door, you simply insert the fueling nozzle and fill. After fueling, ensure the fuel door is closed properly to seal the system. If you ever see a check-fill warning or a fueling issue, consult the owner's manual or contact a Honda service adviser for guidance.

If your model still uses a traditional gas cap, the release location is most often a floor-mounted lever on the driver's side, with the fill procedure following standard fueling etiquette.

When in doubt, a quick check of the manual or a call to a local Honda dealership will confirm whether your specific Civic uses a capless system or a traditional cap—and the exact location of the release for your year and trim.

Summary

For most Honda Civics, the gas-cap access is inside the cabin: either a floor-mounted lever to the left of the driver or, on newer capless models, no cap to remove at all. The exact location varies by year and trim, so consult the manual if you’re unsure. With the correct release located, fueling is straightforward: open the door, refuel, and close the door securely.

Where is the gas tank on a Honda Civic?

The Honda Civic's gas tank is located in the trunk, under a partition behind the rear seats. The fuel filler door is on the exterior of the vehicle, typically on the left rear side of the car. To access it, you must unlock the driver's side door, then push on the fuel door to open it.
 
This video shows how to open the gas tank in different Honda Civic models: 48sHondaYouTube · Apr 24, 2023

• Tank location: The fuel tank itself is inside the trunk, separated from the cargo area by a partition. 
• Fuel door location: The fuel filler door is on the exterior of the vehicle, on the left rear side (passenger side for right-hand drive vehicles). 
• How to open:
  1. Unlock the driver's door. 
  2. Press the fuel door to open it, or pull a lever or push a button on the inside of the driver's door for some models. 
  3. Manually pull the fuel door to the fully open position and unscrew the gas cap (if present) to begin refueling. 

How do I open the gas cap on my Honda Civic?

To open the gas cap on a Honda Civic, first unlock the car. Then, either press the back of the fuel filler door to make it pop open or, in some models, pull a release lever located on the driver's side floor panel. For newer, capless models, simply insert the gas pump nozzle after the door opens, as there is no separate cap to unscrew. 
For modern Civic models (push-to-open door) 
This video shows how to open the gas cap on a modern Honda Civic: 34sModern AutosYouTube · Sep 24, 2021

1. Ensure the driver's door is unlocked. If your car automatically relocks, briefly opening and closing the driver's door again will unlock it. 
2. Go to the rear of the car on the fuel door side. 
3. Press firmly on the back side of the fuel door, and it will pop open slightly. 
4. Manually open the door the rest of the way. 
5. For capless systems, insert the nozzle directly into the filler opening. There is no separate cap to unscrew. 
6. When finished, snap the fuel door shut until it clicks. 

For older Civic models (with a lever)
This video demonstrates how to open the gas cap on an older Honda Civic using a lever: 39sHardReset_info CARsYouTube · Jul 6, 2023

1. Find the fuel door release lever, which is typically located on the driver's side floor panel, near the seat. 
2. Pull the lever to pop the fuel door open. 
3. Open the fuel door and unscrew the gas cap by turning it counterclockwise. 
4. When you are done refueling, screw the gas cap back on securely until it clicks and close the fuel door. The door will lock automatically when the car is locked. 

If the fuel door won't open
This video explains how to open a stuck gas door on a Honda Civic: 1mNorthern Viking EverydayYouTube · Mar 24, 2020

1. Manually open the fuel door from the inside if the lever or button fails. This usually involves finding a cable to pull in the trunk. 
2. Open the trunk, and on the panel on the side of the fuel door, look for a small, often green, pull loop or cable. Pulling it should manually open the fuel door. 

Where is the gas cap release button?

The gas cap release button is usually located on the driver's side door or dashboard, as a lever near the floor or a button on the door panel, often with a fuel pump icon. However, many modern cars have a capless fuel system with no button or lever; instead, the fuel door simply pops open when you press on it, once the car is unlocked. 
Common locations for the release button

• Driver's side floor: Look for a lever at the bottom of the driver's seat, often with a gas pump icon. 
• Driver's side door panel: Check the area with other buttons like the trunk release, headlamp adjuster, or boot release. 
• Driver's side dashboard: Some models have a button near other controls, also frequently with a fuel pump symbol. 

If there is no button or lever

• Unlock the car: Ensure the vehicle is unlocked. Some systems, like capless fuel systems, require the car to be unlocked before the door will open. 
• Push the fuel door: Gently press the fuel door itself; it should pop open. 

If the door is stuck

• Emergency release: For a stuck door, you may need to access a manual release lever from inside the trunk. This is often found under an access panel near where the fuel tank is on the outside of the car. 

This video shows how to open a gas tank on a car: 58swikiHowYouTube · Sep 30, 2024
Tips for opening and refueling

• Check the user manual: Your car's manual will have specific instructions on how to open the fuel door. 
• Turn off the engine: Ensure the car is off before attempting to open the fuel door. 
• Know your fuel cap: After refueling, screw the gas cap back on tightly clockwise until you hear a click. 

How to unlock a Honda gas tank?

Open the trunk. Pull the release cord toward you. The release cord unlocks the fuel fill door when it is pulled.