The fuel door release on 2003 Honda Accord is not working.

Consult the manual... you may have assembled something incorrectly the e cable may be adjusted wrong,

it could be the e-brake may not be completely down allowing the switch to not be pushed all the way off, also the switch may be out of alignment not in the proper place. if the e-brake cable sticks a little it may the handle up enough to not turn off the switch.

emergency release should be in the trunk as for the closing of the trunk, you need to disconnect the cable at the trunk latch until you can get it fixed

If it is a lever it should be a cable. A button would be electric.
There may be an emergency release inside the trunk near the door.
It depends on what is damaged how it needs to be repaired.

There is no emergency latch. The best way to get it open is to remove the cable from the release latch in the footwell, then use a pair of pliers to pull the cable and open the hood. You might even have to strip the cable covering back a little to get to the cable.

The cable is probably broken ,it must be verify.

Please Check Near the Driving Seat With boot (rear door) Open Liver.

open it manually then inspect its lock and release system if either seem malfuntioned try to junkyard the peices and change em out. otherwise it is in your release lever and that im not sure of. ill do research for ya.

In virtually all cars there is an emergency release mechanism located inside of the trunk. It's either a pull cord, or a means of twisting the release cable to remove the plunger from inside the fuel tank door. Look inside your trunk, pull back the liner if necessary, or feel around where the cable leads to the fuel tank door.

Once you diagnose the problem you will then know whether or not you will need to replace the release cable.

I had the same problem. Pressing the fuel door unlock button did not work, and I couldn't find any emergency release in the cargo/trunk area. Eventually, I clicked the Lock / Unlock button on the key fob a couple of times and tried again, this time holding the fuel door release button for 1-2 seconds, and it worked. I then sprayed some door lock lubricant into the fuel door lock in case there was something sticking in the mechanism. Don't know if this truly "fixed" the problem, but it's working now.