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How to Fix a Problem With Your Hyundai i20 Key FobHyundai i20 owners can to lock and unlock their cars remotely. They can also start their vehicle ahead of time and check the key fob's functions using a mobile application on their smartphone.Occasionally the key fob might cease to function. This could be caused by a dead battery or water damage, or even signal interference.BatteryHyundai has developed the smart key fob for their vehicles. It allows you to use a variety of remote functions, including locking and unlocking doors, launching your vehicle, and even pressing a panic button. It's an excellent way to cut down on time and energy for drivers, but it can be a hassle if the system isn't working properly. There are a few options you can do if your Hyundai i20's key fob isn't working correctly.The first step is to examine the battery. The majority of smart key fobs utilize batteries that are coin-cell and is easily replaced in minutes. This is typically the fastest and most cost-effective method to fix the issue. Replacement batteries are available in the majority of stores or on the internet. Re-open the keyfob after installing the new battery to verify that the battery is in the correct position and is in contact with all connections.Be sure to snap a photo or take a note of where the previous battery was placed on the circuit board prior to taking it out it. This will let you install the new battery in the same way. Most Hyundai smart key fobs have the CR2032 battery, which is available in many stores and online. Once you have the battery installed and closed, you can close the key fob and test it to see if it's working again.ContactsIf your Hyundai key fob suddenly stopped working and you didn't drop it, there could be a problem with the internal chip. The receiver module in your vehicle uses a radio frequency signal to communicate with the remote control, so in the event that this signal is interfered with by nearby transmitters or objects, it may cause the key fob to cease functioning correctly.If you're looking for a reliable way to unlock, lock and start your vehicle during your Reno commute, consider the Hyundai Digital Key system. This innovative keyless entry system operates via an app on your smartphone that allows sharing Digital Key access with up to three additional people. This is a great feature when you give a friend the opportunity to take a ride or leaving your vehicle in valet service.A dead battery is the primary reason for a Hyundai i20's key fob not functioning. If yours is showing signs of dying, like slow operation or not responding at all, it's time to replace the battery. Although the process of replacing the Hyundai keyfob battery shouldn't be difficult, you should be aware of a few points prior to starting. The first step is to take note of how the old battery is laid inside the circuit board or take a picture. This will enable you to place the new battery at the same spot.Water DamageThe key fob is fitted with rubber seals to protect the electronic chip inside from water. If it is able to survive a quick splash from a washing-machine or an unintentional dip in light rain it's unlikely to get damaged. However, if you've dropped it into the pool or in the ocean, the water could penetrate the seals and damage the circuit board, which is costly to repair.The first step is drying the key fob completely. It can be done in a variety of ways. It can be placed in a plastic bag with silica gel bags that will draw the moisture out of it. You can also use uncooked rice, but be careful not to touch it while it is still damp. It could be contaminated by its internal components.The use of isopropyl alcohol, or an electronic cleaner may also help in cleaning the contacts on the circuit board. If, however, the chip has been damaged, it's likely that you'll require a new key fob.Replacing the battery on the Hyundai key fob is easy and generally not messy. You can follow an YouTube video tutorial to assist you with the process or refer to your owner's manual. It's a great idea to keep an extra key fob on hand so you can drive your car while you wait for your repaired key.Diagnostics of a faultIt isn't easy to pinpoint problems if your check engine light is flashing and you have a fault code. hyundai replacement key fob is the reason why the diagnostic scanner is commonly known as an OBD 2 (or OBD 2 in the UK). They are available in Bluetooth versions that connect to your phone or standard models with readers that are connected to the socket.One of the most frequent issues with i20s is the throttle position sensor (TPS) is damaged. This sensor is accountable to measure the opening angle of the throttle valve. The information is then sent to a control unit, which aids in calculating the amount of fuel needed. A malfunctioning throttle position sensor will result in a decrease in engine performance, jerky acceleration and RPM fluctuations during driving.Another common problem found in the i20s is a faulty transmission. The transmission is a complex component that has many gears that connect to transfer power from the engine to wheels. The friction between the gears causes wear and tear over time, which could cause the transmission to fail. Grinding or clunking sounds and an acceleration that is jerky can indicate an unreliable gearbox.The spark plugs on the i20 are a second common problem area. Spark plugs that are defective can cause damage to the engine because they do not deliver the right amount of sparks to the cylinders. A damaged spark plug can cause expensive and serious engine damage if it is not checked.