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How to Fix a Problem With Your Hyundai i20 Key Fob Hyundai i20 owners can to lock and unlock their cars remotely. They can also start their vehicle in advance and monitor key fob function by using a mobile application on their smartphone. However, occasionally the key fob will stop functioning for a reason. This could be due to an unresponsive battery or water damage, or signal interference. Battery Hyundai has created a smart key fob that can be used to perform a variety of remote functions, like locking and unlocking your doors, launching your car and even activating the panic button. It's a fantastic feature for drivers, helping them save time and effort, however it can be a challenge when the system isn't working properly. If you're having difficulty getting your Hyundai i20 key fob to work properly There are several options you can do to solve the issue. The first step is to test the battery. Most smart key fobs use an internal battery that is easily replaced in minutes. This is the simplest and cheapest method to fix your problem. You can buy replacement batteries in many stores as well as online. Once you have a new battery open the key fob to ensure that the battery is sitting in the correct position and is in contact with all connections. Make sure G28 Car Keys capture a photograph or take a note of where the old battery was placed in the circuit board prior to taking it out it. This will assist you in installing the new battery in the same manner. Most Hyundai smart keyfobs use the CR2032 batteries, which can be found at most stores or online. Once you have the battery installed and closed, you can close the key fob and test it to determine if it's working again. Contacts If your Hyundai key fob stopped working out of the white of the night and you haven't lost it, you could be dealing with a faulty internal chip. The receiver module inside your vehicle utilizes radio frequency signals to communicate with the remote control, therefore if this signals are being affected by nearby transmitters or objects, it may cause the key fob's functionality to cease properly. If you're looking for a reliable method to lock, unlock and start your car during your Reno commute, look into the Hyundai Digital Key system. This advanced keyless entry system operates via a smartphone app and allows sharing Digital Key access with up to three additional people. This can be helpful when offering a friend a ride or when leaving your car with valet services. The most frequent reason for the Hyundai i20 key fob to stop working is an inactive battery. If yours is showing signs of dying, like slow operation or not responding at all it's time to replace the battery. While replacing the Hyundai keyfob battery is not difficult, you should be aware of certain things before you begin. Take a photo or take an outline of the way that the old battery is placed inside the circuit board. This will allow you to put the new battery in the same position. Water Damage The key fob has rubber seals to protect the chip's electronics from water. If it survives a quick splash from a washing machine or an a short immersion in a light rain, it's unlikely to be damaged. However, if you've dropped it in a ocean or pool, the water can penetrate the seals and cause damage to the circuit board, which can be costly to repair. The first step is drying the key fob completely. This can be done in a variety of ways. You can place it in a bag with silica packs to absorb the moisture. Alternately, you can make use of uncooked rice, but it's important not to touch the key fob while it's still moist because this could contaminate the internal components. You can also clean the the circuit board with isopropyl or electronic cleaner. If the chip is damaged it is best to accept that you'll have to replace the key fob. It is simple to change the battery on your Hyundai key fob. The procedure is generally simple. You can use a YouTube tutorial or your owner's guide to guide you through the process. It's a good idea keep a spare key fob on your side so that you can continue driving your car while waiting for the repaired key to arrive. Diagnosis of a Fault It can be difficult to diagnose problems if your check engine light is flashing and you have a fault code. This is why the diagnostic scanner is typically known as an OBD 2 (or OBD 2 in the UK). They are available in Bluetooth versions that connect to your mobile or standard models with readers that are connected to the socket. The throttle position sensor (TPS), which is located in the i20, can become damaged. The sensor is responsible for measuring the opening angle of the throttle valve. The information is then sent to an electronic control unit, which contributes to the calculation for the amount of fuel needed. A malfunctioning throttle position sensor will result in a decrease in engine performance, jerky acceleration and RPM fluctuations when driving. Transmission problems are another common issue with i20s. The transmission is a complex component made up of many gears that interlock to transfer power from the engine to the wheels. As time passes friction between gears can lead to the transmission's failure. Sounds of grinding or clunking as well as an acceleration that is jerky can indicate the gearbox being damaged. The spark plugs of the i20 are another common problem area. The problem with defective spark plugs is that they can harm the engine by not delivering the correct amounts of sparks to the cylinders. If not checked an unclean spark plug could result in serious and costly engine damage.