How to Fix a Problem With Your Hyundai i20 Key Fob

Hyundai i20 owners can to lock and unlock their vehicle remotely. They can also start their vehicle prior to time and monitor key fob functions using a mobile app on their smartphone.

Occasionally the key fob might stop working. It could be due to an unresponsive battery water damage or signal interference.

Battery

Hyundai has developed a smart key fob that can be used to perform various remote functions, like locking and unlocking your doors, starting your car and even triggering the panic button. It's an ideal way to save time and energy for drivers, however it can be a hassle if it doesn't work as intended. There are a few options you can do if your Hyundai i20's key fob isn't functioning properly.

The first step is check the battery. Most smart key fobs are powered by a coin cell battery, which can be replaced within minutes. This is usually the fastest and most cost-effective method to fix the issue. It is possible to purchase replacement batteries in a variety of stores and on the internet. Re-open the keyfob after installing the new battery to verify that the battery is in the proper location and that it is in contact with all connections.

Take a picture or note the position of the old battery in the circuit before taking it out. This will allow you to install the new battery in the same way. The majority of Hyundai smart keyfobs have CR2032 batteries, which are sold in most stores or on the internet. Once you have the battery in place close your key fob, and then test it to determine if it's working again.

Contacts

If your Hyundai key fob stopped working completely out of the blue and you haven't dropped it, you may be dealing with a faulty internal chip. The receiver module in the car utilizes radio frequency signals to communicate with the remote. If these signals are obstructed by nearby transmitters, or other objects the key fob could stop working properly.

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The most frequent reason for the Hyundai i20 key fob to stop working is the battery is dead. It's time to change the battery if it is showing signs of age like a slow operation or no response at all. Although replacing and opening the battery in your Hyundai key fob battery isn't a big deal, there are a few things to know prior to starting. Take a photo or take an outline of the way that the old battery is placed on the circuit board. This will help you place the new battery at the same place.

Water Damage

The rubber seals on the fob's key seal the chip from water. If it is able to survive a quick splash from a washing-machine or an unintentional dip in a light drizzle it is unlikely to be damaged. If you drop it in the ocean or in a pool, the water could penetrate the seals, damaging the circuit board. This is an expensive repair.

The first step is drying the key fob completely. This can be accomplished in various ways. It can be placed in a bag along with silica packs to absorb the moisture. You can also use uncooked rice, but be careful not to contact it while it's still wet. It could be contaminated by the internal components.

Using isopropyl alcohol or an electronic cleaner could also be helpful in cleaning the contacts on the circuit board. If the chip is damaged, it's best to accept that you'll need a replacement key fob.

Replacing the battery on a Hyundai key fob is simple and usually not very messy. You can follow an YouTube tutorial or your owner's manual guide you through the process. It's always a good idea have a spare key fob on for you in case you need to continue driving your car while waiting for the key repair to arrive.

Diagnostics of a fault

If your check engine light comes on and the fault code is present, it can be difficult to identify the problem without the use of a diagnostic scanner commonly called an OBD 2. These can be purchased in Bluetooth models that connect to your phone, or standard models with an OBD 2 reader.

The throttle position sensor (TPS) located in the located in the i20, could be damaged. This sensor is responsible to measure the opening angle of throttle valve. This information is transmitted to a control unit, which contributes to the calculation for the amount of fuel required. A malfunctioning throttle sensor can result in rapid acceleration that is jerky, fluctuations in RPM and reduced engine performance.

Another issue common to the i20s is the malfunctioning transmission. The transmission is a complicated component that has many gears that work together to transfer power from the engine to wheels. In time, the friction between the gears could cause the transmission to suffer failure. Clanging or grinding sounds as well as rapid acceleration that is jerky are signs of a faulty gearbox.

Spark plugs are an additional aspect to be concerned about for the i20. Spark plugs that are defective can cause damage to the engine because they do not deliver the correct amounts of sparks to the cylinders. A damaged spark plug can cause costly and severe engine damage if left unchecked.