Gas cap light stays on - 2014 Dodge Journey

https://www.theglobeandmail.com/globe-drive/culture/commuting/the-easiest-way-to-turn-off-your-cars-check-engine-light/article14223025
How to Reset the Warning Light Gas Cap That Is Loose or Missing

1. Turn off your vehicle's engine. Push button to unlock the gas cap door, if your vehicle is equipped with a locking gas cap door. ...
2. Step to the gas cap door. Open the door. ...
3. Replace the gas cap. ...
4. Close the gas cap door. ...
5. Use an OBD-II code scanner if the warning light does not disappear. ...
6. Continue driving the vehicle.

Sorry mate, I dont know what this Gas cap is, could be the fuel filler cap, could be the car runs on LPG and it is a cap on the Gas charge line.

The 'check engine' light comes on when almost anything goes wrong, from a loose gas cap to computer systems; low fluid levels to a bad catalytic converter. A common problem is the gas cap not screwed on correctly. This has an easy remedy. Screw the cap off and then carefully seat it and screw it back on until you hear it click. Then drive the car for at least 100 miles. If the light goes out that was the problem.
If the light stays on then you must take it in to be checked by special equipment because that is the only way to isolate the problem.
In my own experience of the light coming on 3 times, there were 3 different reasons: 1) loose gas cap, 2) bad catalytic converter needed replacing [the most expensive unless under warranty] and 3) a bad gas cap that needed replacing. After all 3 instances, the light went out.
I hope it's only a gas cap issue for you. Good luck.

CHECK GAS CAP COULD BE LOOSE OR MISSING OR LEAKING CAUSING EVAP LEAK IN WHICH WILL CAUSE CHECK ENGINE LIGHT FLASH ON..

after the repair on 1996 and newer you must have the light deleted or it will stay on even after a repair

There is a recall on those gas caps. Go to dealer.

Hi:
The gas cap is usually a good suspect in this case, but to figure it out, you need to have your code scanned to figure out what is causing the light. Most auto parts stores will scan it for free, so give them a shot

ford taurus's are well known for this. the seal on the gas cap goes bad. before you replace the gas cap make sure when you close the gas cap you are turning it at least 5 clicks. if light stays on get a new gas cap. they are easy to install all you need to do is remove the gas cap.remove the gas cap strap. put ******** the new cap, close cap and turn 5 clicks. not clicking 5 time can set a p400 or p401 evap code causing the check enging /ses light to come on.

remove the fuel cap and reinstall it, if that doesn't fix it then the sensor is defective.

make sure that the gas cap have a rubber gasket in it if it has accidentaly dropped off while you removed to fill the tnk it will not seal properly and create a vacum leak causing the ecm to turn on the light.

or did you have an accident or did you run over any thing that could have damaged the vapor canister at the bottom of the vehicle and if this is the case you will see the light on because a damaged canister can cause a vacum leak