Hyundai Ioniq Key Not Working – How To Fix

By Max Anthony •  Updated: 04/10/22 •  3 min read

Hyundai is one of the largest car manufacturers in the world. The Hyundai Ioniq is one of the popular and competitive electric vehicles. However, there are some common problems that are related to the electric car, such as the key suddenly not working. A key that refuses to work can be very troublesome for any car owner because the car is useless and borderline inoperable without a working key. In this article, we will discuss how to fix the problem of a Hyundai Ioniq key not working.

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Here are some possible issues and solutions you should consider:

Make sure the key is charged

First of all, you need to make sure that your car battery is fully charged. You should not forget that your battery is a part of your car and must be charged regularly to keep it in good condition.

If you have an old car or an electric vehicle with a very low battery capacity, then a longer charging time will be required for your vehicle to be fully charged. In addition, when charging from a power outlet, always use the original charger with plug that came with your vehicle as they provide better output and will ensure more safety when charging the battery pack of your Hyundai Ioniq.

Check the battery

When the battery is fully charged, you can check whether the problem lies with the battery or not. Perhaps the key fob battery itself is faulty and needs to be changed. This is a likely issue if the car is particularly old or second-hand.

But don’t worry! You will still be able to start your vehicle, because the battery only sends the signal to lock the vehicle. Basically, you may try to have the doors opened manually. If this works, then the issue lies with the battery and you should look for a replacement.

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Dirt clogging the key

If the key itself is dirty, you can try to clean it with a small brush. Dirt or dust may clog up the spaces between the buttons or something along these lines, which may have caused the issue of your Hyundai Ioniq key not working.

Short circuit in the fuse box

In this case, you should have a look at the fuse box under your hood. It is very likely that there is a short circuit in this part of your car, which could be causing problems with your key and therefore preventing it from working.

Use the holder location

Remember that you can start your car without a key, even if you have a dead battery. Each Hyundai model that is equipped with Smart Key has a holder located in the center of the vehicle. In most cases, they are inside the center console or glove compartment. If you insert the key into the slot in that area, you’ll be able to start your vehicle and operate your smart key.

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Max Anthony

Max is a gizmo-savvy guy, who has a tendency to get pulled into the nitty gritty details of technology and cars. He attended UT Austin, where he studied Information Science. He’s married and has three kids, one dog and a GMC truck and a Porsche 911. With a large family, he still finds time to share tips and tricks on cars, trucks and more.

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