Just push inward on the rear edge. It will pop right open.
The fuel door release latch, on your Cadillac DTS, is located on the floor near the drivers seat. Pull the lever up and the fuel door will open.
In the 2008 Cadillac STS, the gas tank release button is located on the driver's side, near the floor, just to the left of the seat. It is typically a small lever that you pull up to open the fuel door. If you are having trouble finding it, check around the area near the driver's side door.
There is a pull pin release in the trunk
I have a 2000 cadillac catera sometimes the radio will shut off when this occurs the fuel door will not open neither will the trunk
Pry bar and a hammer
The one on top is to open the trunk. The one on the bottom is to open the fuel door.
On a 1999 Cadillac Catera, the fuel relay switch is located in the engine compartment fuse box. To access it, open the hood and find the fuse box on the driver's side near the windshield. The fuel relay is usually labeled on the diagram inside the fuse box cover. Make sure to check the vehicle's manual for specific details and diagrams.
Push the right side of the fuel-tank cover (which is round) and it pops open.
To open the fuel cap cover on a Mercedes-Benz Vito, locate the fuel cap release mechanism, which is typically a lever or button inside the vehicle near the driver's seat. Pull or press this mechanism to unlock the fuel cap. After unlocking, simply push the fuel cap cover to open it. Some models may require you to turn the cap counterclockwise to remove it for refueling.
To open the fuel cap on a Cadillac (often referred to as a "Caddy"), first ensure the vehicle is turned off and in the "Park" position. Locate the fuel door release button, which is typically found on the driver’s side, near the floor or on the dashboard. Press the button to release the fuel door, then simply push the fuel door open. If your Cadillac has a locking fuel cap, you may need to unlock it using the vehicle key or remote before unscrewing it.
Use your finger to apply pressure to the left side of the fuel door on the cars passenger side. That will cause the fuel door to spring open.
Open the hood the fuel filter is right in front of the valve cover and it is clear.