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How to Fix hyundai i20 key programming With Your Hyundai i20 Key FobHyundai i20 vehicle owners can lock and unlock their vehicles remotely. They can also start the vehicle in advance and track key fob functions via a mobile application on their smartphone.Sometimes the key fob might stop working. It could be due a dead battery water damage, or signal interference.BatteryHyundai has developed the smart key fob for their vehicles, which allows users to perform a variety of remote functions, including locking and unlocking doors, starting your vehicle and triggering an emergency button. It's a wonderful feature for drivers and helps them save time and effort, however it can be a hassle if the system isn't working properly. There are several things you can do to fix your Hyundai i20's key fob isn't working properly.The first step is to check the battery. The majority of smart key fobs are powered by a coin-cell, which can be easily repaired in a matter of minutes. This is usually the fastest and most affordable way to fix the problem. Batteries for replacement are available at the majority of stores or on the internet. Once you have a new battery in place and you have it open, check to ensure that the battery is sitting in the right 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 allow you to install the new battery in the same way. The majority of Hyundai smart key fobs use batteries that are CR2032, which are found in many shops and on the internet. Close your key fob after installing the battery and then test it.ContactsIf your Hyundai keyfob suddenly stopped working and you weren't able to drop it, it may be a problem in the internal chip. The receiver module in the car utilizes radio frequency signals to communicate with the remote. If the signals are disrupted by nearby transmitters or other objects the key fob could stop working properly.If you're looking for a reliable method to lock, unlock and start your car during your Reno commute, consider the Hyundai Digital Key system. This advanced keyless entry system works with a smartphone app and allows sharing Digital Key access with up to three others. This is a great feature when you give a friend a lift or leaving your vehicle in valet service.A dead battery is the most common reason for an Hyundai i20's key fob not working. If yours is showing symptoms of dying, like slow operation or not responding at all, it's time to replace the battery. Although replacing and opening your Hyundai key fob battery isn't too difficult, there are a few things to know prior to beginning. Make a sketch or an outline of the way that the old battery is placed on the circuit board. This will help you put the new battery in the same spot.Water DamageThe rubber seals on the key fob protect the chip from water. So, if it survives a splash of water from a washing machine, or an evaporation in light rain, it's unlikely to get damaged. If you've dropped it in the pool or the ocean, then the water can penetrate the seals and cause damage to the circuit board, which can be costly to repair.The first step is to dry the key fob thoroughly. This can be done in various ways. You can place it in a bag along with silica packets to soak up the moisture. You could also use uncooked rice however, be careful not to touch it while it's still wet. This could contaminate its internal components.You can also clean the contacts of the circuit board with isopropyl or electronic cleaner. However, if the chip is fried then it's likely that you'll need a replacement key fob.Replacing the battery on a Hyundai key fob is simple and generally not messy. You can use a YouTube tutorial or your owner's guide to guide you through the process. It's a good idea to have an extra key fob on the go so that you are able to continue to drive your car while you wait for the repaired key to arrive.Diagnosis of a FaultIt can be difficult to diagnose the cause of a problem when your check engine light is flashing 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 United Kingdom). They are available in Bluetooth versions which connect to your phone or standard models with readers that are connected to the socket.One of the most common issues with i20s is the throttle position sensor (TPS) develops a fault. This sensor is accountable to measure the opening angle of throttle valve. The information is then sent to an electronic control unit, which helps calculate the amount of fuel needed. A problem with the throttle position sensor could result in a decrease in engine performance, jerky acceleration, and RPM fluctuations when driving.Another problem that is frequently found in the i20s is the transmission that is defective. The transmission is a complicated component made up of many gears that interlock to transfer power from the engine to wheels. The friction between the gears causes wear over time which can cause the transmission to fail. Signs of a defective transmission include grinding or clunking noises and an abrupt acceleration.The spark plugs of the i20 are a second common problem area. Faulty plugs can cause engine damage by not delivering enough sparks to every engine. A damaged spark plug can cause expensive and serious engine damage if it is not checked.