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How to Fix a Problem With Your Hyundai i20 Key Fob

Hyundai I20 owners can lock and unlock their vehicles remotely. They can also start their vehicle in advance and track the key fob's functions using a mobile application on their smartphone.

Sometimes the key fob may stop working. It could be due to a dead battery or water damage, or signal interference.

Battery

Hyundai has developed the smart key fob for their vehicles, which allows you to perform a range of remote-controlled functions, such as locking and unlocking doors, starting your vehicle, and even pressing the panic button. It's an excellent way to save time and energy for drivers, however it can be a hassle if the system doesn't function properly. There are a few options you can do if your Hyundai i20's key fob is not working properly.

The first thing to do is check the battery. Most smart key fobs make use of an internal battery that can be replaced in a matter of minutes. This is the fastest and cheapest method to solve your issue. Replacement batteries are readily available in all stores and online. Re-open the keyfob after installing the new battery to verify that the battery is in its correct position and is in contact with all connections.

Take a picture or note the position of the old battery in the circuit before removing it. This will help you install the new battery in the same manner. Most Hyundai smart keyfobs have CR2032 batteries, available in a variety of stores or online. Close your key fob after installing the battery and test it.

Contacts

If your Hyundai key fob stopped working completely out of the blue and you haven't dropped it, you could be dealing with a defective internal chip. The receiver module in your vehicle utilizes a radio frequency signal to communicate with the remote control, so if this signals are being blocked by nearby transmitters or objects, it may cause the key fob to cease functioning correctly.

Take a look at the Hyundai Digital key system if your goal is to lock, unlock, and start your vehicle while you commute to Reno. The advanced keyless system operates through an app on your smartphone, allowing you to share Digital Key access up to three persons. This is a great feature when you're giving a friend the opportunity to ride with you or leave your vehicle with valet service.

A dead battery is the primary cause of the Hyundai i20's key fob not working. If yours is displaying symptoms of dying, like slow operation or not responding at all it's time to replace the battery. Although the process of replacing your Hyundai keyfob battery isn't difficult, you should be aware of certain things before you begin. First, make a note of where the old battery sits on the circuit board or take a photograph. This will help you put the new battery in the same spot.

Water Damage

The rubber seals on the key fob guard the chip's electronic components from water. If it can withstand a brief splash from a washing machine, or just a brief dip in a light drizzle, it's unlikely to be damaged. If you dropped it in the ocean or a pool, the water could penetrate the seals, damaging the circuit board. This is an expensive repair.

The first step is to dry the key fob completely. This can be accomplished in several ways. You can place it in a plastic bag containing silica gel packets that will absorb the moisture out of it. Or, you could make use of uncooked rice, but it's important not to contact the key fob when it's still moist because this could contaminate the internal components.

The use of isopropyl alcohol, or an electronic cleaner can also help in cleaning the contacts on the circuit board. However, if the chip is fried, it's probably best to accept that you'll need to replace the key fob.

It's easy to change the battery on your Hyundai key fob. The process is typically not difficult. You can follow a YouTube tutorial or your owner's manual to guide you through the procedure. It's a good idea to keep an extra key fob on hand so you can drive your vehicle while waiting for your repaired key.

hyundai key fob repair of a fault

It isn't always easy to identify a problem if your check engine light is illuminated and you have a fault-code. This is why an OBD diagnostic scanner is usually known as an OBD 2 (or OBD 2 in the UK). They are available in Bluetooth models that connect to phones or standard models that have an attached reader to the socket.

One of the most common problems with i20s is the throttle position sensor (TPS) is defective. This sensor is responsible for measuring the opening angle of the throttle valve. This information is passed to the control unit, and contributes to the calculation of the amount of fuel required. A malfunctioning throttle position sensor will result in a decrease in engine performance, jerky acceleration and RPM fluctuations during driving.

Transmission problems are a common issue with i20s. The transmission is a complicated component that has many gears that interlock to transfer power from the engine to wheels. As time passes friction between gears can lead to transmission failure. The sound of grinding or clunking and the jerky acceleration can be signs of an inefficient gearbox.

Spark plugs are another area of concern for the i20. Faulty plugs can cause engine damage through not providing enough sparks to each cylinder. A damaged spark plug can cause costly and severe engine damage if not properly checked.