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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 their vehicle ahead of time and check key fob functions via a mobile application on their smartphone. Sometimes the key fob may stop working. It could be due to the battery being dead or water damage, or even 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, launching your car and even triggering the panic button. It's a great way to save time and energy for drivers, however it can be frustrating when it doesn't work as intended. If you're having difficulty getting your Hyundai i20 key fob to function properly, there are several things you can do to solve the issue. The first thing you need to do is check the battery. Most smart key fobs are powered by a coin-cell battery, which can be replaced in just a few minutes. This is the fastest and cheapest method to resolve your issue. Replacement batteries are readily available in many stores or online. Re-open the keyfob after installing the new battery to ensure that the battery is in the correct position and is in contact with all connections. Be sure to capture a photograph or take a note of where the old battery was positioned in the circuit board prior to taking it out it. This will let you install the new battery the same way. The majority of Hyundai smart key fobs use batteries that are CR2032, which are sold in a variety of shops and on the internet. Close your key fob after installing the battery, and then test it. Contacts If your Hyundai key fob suddenly stopped working and you did not drop it, there could be a problem with the internal chip. The receiver module inside the car utilizes radio frequency signals to communicate with the remote. If these signals are interfered with by nearby transmitters, or other objects the key fob could cease to function properly. You should consider the Hyundai Digital key system if you want to unlock, lock and start your vehicle on your way to work in Reno. This advanced keyless system operates with an app on your smartphone. It allows you to share Digital Key access up to three people. This can be useful when offering an individual a ride or when you're leaving your car with valet services. The most common reason for the Hyundai i20 key fob to stop working is a dead battery. If yours is displaying signs of dying, like slow operation or not responding at all it's time to replace the battery. While replacing and opening the battery in your Hyundai key fob battery isn't difficult however there are a few points to be aware of prior to starting. First, take note of how the old battery sits inside the circuit board or take a photo. G28 Car Keys will help you place the new battery in the same place. Water Damage The key fob features rubber seals to protect the electronic chip inside from water. If it is able to withstand a short splash from a washing-machine or an a short immersion in light rain, it is unlikely to be damaged. However, if you drop it in the ocean or pool, the water could penetrate the seals and cause damage to the circuit board, which is expensive to repair. The first step is drying the key fob completely. This can be done in many ways. You can put it in a bag along with silica packets to soak up the moisture. You can also use rice that is not cooked, but be careful not to contact it while it's still wet. This could cause contamination to its internal components. The use of isopropyl alcohol, or an electronic cleaner could also help in cleaning the contacts on the circuit board. If the chip is 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 a hassle. You can use a YouTube tutorial or your owner's guide to guide you through the process. It's a great idea to keep a spare key fob so you can drive your car while you wait for your repaired key. Diagnostics of a fault It can be difficult to diagnose problems if your check engine light comes on and you have a fault-code. This is why the diagnostic scanner is typically called an OBD 2 (or OBD 2 in the United Kingdom). They are available in Bluetooth versions that connect to your mobile or standard models with an OBD 2 reader that is connected to the socket. One of the most common problems with i20s is the throttle position sensor (TPS) is defective. The sensor is responsible for determining the opening angle of the throttle valve. This information is transmitted to a control unit, which is used to calculate the amount of fuel required. A malfunctioning throttle sensor can result in abrupt acceleration, erratic RPM changes and a decrease in engine performance. Transmission issues are another frequent issue in i20s. The transmission is a complicated component with many gears that connect to transfer power from the engine to wheels. The friction between the gears can cause wear over time which can cause the transmission to fail. Signs of a malfunctioning transmission include clunking or grinding noises and jerky acceleration. The spark plugs of the i20 are a different common issue area. Spark plugs that are defective can cause damage to the engine because they do not deliver the correct amounts of sparks to the cylinders. If left unchecked, a damaged spark plug can cause serious and costly engine damage.