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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 the vehicle in advance and monitor key fob functions via a mobile application on their smartphone. Occasionally, the key fob will cease to function. It could be due to a dead battery or water damage, or signal interference. Battery Hyundai has developed a smart key fob that is able 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 great way to save time and energy for drivers, however it can be a hassle if the system doesn't work correctly. If hyundai i10 key fob replacement struggling to get your Hyundai i20 key fob to function properly There are several options you can try to solve the issue. The first step is checking the battery. Most smart key fobs are powered by a coin-cell battery, which can be easily repaired in a matter of minutes. This is typically the fastest and most affordable way to resolve the issue. Batteries for replacement are available at all stores and online. After you have put the new battery open the key fob to make sure the battery is in the right position and is in contact with all connections. Make sure you take a photo or make note of how the old battery was placed on the circuit board before removing it. This will help you install the new battery in the same manner. The majority of Hyundai smart keyfobs are equipped with CR2032 batteries, which are sold in most stores or on the internet. Once you have the battery in place, close up your key fob, and then test it to determine if it's functioning again. Contacts If your Hyundai key fob stopped working from the blue and you haven't dropped it, you could be dealing with a faulty internal chip. The receiver module inside your vehicle uses radio frequency signals to communicate with the remote control, so in the event that this signal is disrupted by nearby transmitters or objects, it can cause the key fob to cease functioning correctly. Think about the Hyundai Digital key system if you're looking for a way to unlock, lock and start your car on your way to work in Reno. This innovative keyless system functions with an app on your smartphone and allows you to share Digital Key access up to three people. This is useful if you are giving a friend an escort or leaving your vehicle with valet services. The most frequent reason for the Hyundai i20 key fob not to function is an inactive battery. It's time to replace the battery if it shows signs of aging or has a slow response or no response at all. While the process of opening and replacing the battery in your Hyundai key fob battery shouldn't be difficult however there are a few points to be aware of prior to starting. Take a picture or make a note about how the old battery is placed on the circuit board. This will help you place the new battery in the same spot. Water Damage The rubber seals on the fob's key seal the chip's electronic components from water. So, if it is able to withstand a splash of water from a washing machine, or a brief submersion in light rain, it's unlikely to get damaged. If you drop it into an ocean or pool and the water sank into the seals, causing damage to the circuit board. This can be a costly repair. The first step is drying the key fob thoroughly. It is possible to do this in a variety of ways. You can put it in a bag with silica packets to soak up the moisture. You can also cook rice uncooked However, be cautious not to contact it while it's still wet. This could cause contamination to its internal components. You can also clean the the circuit board by using isopropyl or electronic cleaner. If the chip is in danger of being damaged it is best to accept that you'll have to replace the key fob. It's simple to change the battery on your Hyundai key fob. The process is typically not difficult. You can use an YouTube tutorial or the owner's manual to guide you through the procedure. It's a great idea keep an extra key fob on hand so you can drive your car while waiting for your key to be repaired. Fault Diagnosis If your check engine light comes on and a fault code is present it can be difficult to pinpoint the issue without the use of a diagnostic scanner commonly called an OBD 2. They are available in Bluetooth models which connect to your phone or standard models with a reader attached to the socket. The throttle position sensor (TPS) is located in the i20, can become 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 sensor can cause rapid acceleration that is jerky, fluctuations in RPM and a decrease in engine performance. Another issue that is common in i20s is the faulty transmission. The transmission is a complicated component with a variety of gears that work together to transfer power from the engine. The friction between the gears cause wear over time which can cause the transmission to fail. Clanging or grinding sounds as well as jerky acceleration are symptoms of an inefficient gearbox. Spark plugs are yet another aspect to be concerned about for the i20. Spark plugs that are defective can cause engine damage through not sending enough sparks to every cylinder. A damaged spark plug could cause costly and severe engine damage if not properly checked.