If the car is unlocked, she can open the door and hit the "unlock" button and it will free the charger. It won't stop the charger until it is physically removed from the port. I also believe their is a setting that will allow the charger to be unlocked all the time vs upon full charge vs when button is pushed on the fob.

 

There are three setting in the infotainment for locking the charge port

Lock with doors

Lock while charging

Never lock

Mine is set to never lock. We charge at home in garage so no need to lock. When it is unlocked and charging, all you need to do is release the charge handle lock. There is a sensor on the vehicle that immediately stops the charging circuit. (Electrical diagram was posted in another thread). We have stopped charging like this May times at home and I believe it will stop at EA also

If you are set to the other two settings as indicated, unlock the doors

 

When it is unlocked and charging, all you need to do is release the charge handle lock. There is a sensor on the vehicle that immediately stops the charging circuit. (Electrical diagram was posted in another thread). We have stopped charging like this May times at home and I believe it will stop at EA also

The lever on the plug is linked to the proximity pilot pin that communicates with the EV.

The Proximity Pilot (PP) pin is a communication pin that sends signals between the charging station and the vehicle, enabling it to communicate its charging capabilities and initiate or terminate the charging process.

From what I understand, when the lever is pushed on the J1772, it is interpreted by the car to stop requesting energy from the EVSE, and simultaneously disengages the latch from the port, enabling the plug to be removed. My guess is, the requirement to unlock the car that can be set in settings presumably blocks the signal from the proximity pilot from being sent to the car when locked, or informs the controller to ignore the signal. Since the car isn't releasing its port latch, the plug remains "locked".

When set to not lock, or when the car is unlocked and the lever is pushed, there is a short delay before you can remove the plug, in that delay period, energy stops flowing. So, unless Hyundai completely failed to follow J1772 safety standards in this regard, it should be perfectly safe to press the lever and remove the plug.

 

Please remember that some J1772 plugs have quite stiff latching mechanisms; a firm push may be needed to activate the microswitch and thus end the EVSE session. This applies when the charging port's latching mechanism is engaged.

 

I recently learned of a new way to stop a charging session with the Ioniq 5 using the key fob. Press and release the Lock button and then press and hold the charge port door button. You will hear the clicks, the charge port lights will stop blinking and you can then release the plug with the power off.

I believe it works for both AC and DC charging but I so rarely use DC charging I have not had the opportunity to try it when DCFC.

 

Just unlocking the car with the key or the button on the handle stops or significantly reduces the charging so that the cable can be released. The cable will relock after a short time if it is not withdrawn.

 

You can stop L1/L2 charging by pushing the button on the J1772 charge handle. Doing so changes a resistance value on a signaling wire, telling the vehicle to signal the EVSE to open the contactor. You'll here a nice "clunk" from the EVSE.

You want to continue holding that button down while pulling the handle out of the charge port.

 

Note this topic has been discussed many times

https://www.ioniqforum.com/threads/stop-charging.50278/

https://www.ioniqforum.com/threads/stop-charging-in-an-emergency.49371/

https://www.ioniqforum.com/threads/newbie-question-stop-charging-from-inside-the-car.47739/

https://www.ioniqforum.com/threads/how-to-manually-stop-charging-on-level-2-when-there-is-no-off-button.42720/

 

This is what we do at home when using our level 2 charge setup, and want to end the charge session early.

Using the key fob, press the door unlock button twice. Then remove the charge cord by pressing the lock button and pulling it out of the car.

 

You only need to press it once if the car is already locked. If the car is unlocked it needs to be locked and unlocked.

 

A down and dirty but safe solution is to throw the breaker off to the charger. Works just fine. Power stops, plug unlocks and it can be removed from the car. Then turn breaker on and use as you normally would. The sub-panel is probably nearby in the garage and its a quick solution not requiring any access to the car.

 

Opening the breaker while under load is hard on the breaker. The contacts in the EVSE are made for that kind of duty. Your circuit breaker is not. Eventually, the breaker will fail. It might take a few years but why do that when a proper shutdown is so easy?