If you're having trouble with a fuel release button (for example, in a gas cap release), you should:
* Consult your car's owner's manual: This is the best resource for locating fuses related to your car's systems. It may have a diagram showing the fuse box locations and what each fuse controls.
* Check multiple fuse boxes: Most cars have more than one fuse box (often one under the hood and one in the passenger compartment).
* Look for fuses related to the fuel system: These are often clearly labeled.
* If the problem isn't a blown fuse: The issue is likely with the button itself, the wiring to the button, or a related control module (which isn't directly protected by a fuse in the same way). You'll need a mechanic or qualified automotive technician to diagnose this properly.
In short: Don't assume a fuse is the problem without checking your owner's manual and looking at fuses related to the fuel system. It's more likely a different electrical component is at fault.