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How to Fix a Problem With Your Hyundai i20 Key Fob Hyundai i20 owners are able to lock and unlock their vehicles remotely. hyundai spare key can also start the vehicle ahead of time and check key-fob functionality using a mobile application on their smartphone. Sometimes the key fob can cease to function. This could be due to the battery being dead or water damage, or even signal interference. Battery Hyundai has created 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 triggering the panic button. It's an excellent feature for drivers to save time and effort, but it can be a hassle if the system doesn't function properly. If you're struggling to get your Hyundai i20 key fob to perform as it should, there are several things you can try to solve the issue. The first thing to do is to check the battery. The majority of smart key fobs have batteries that are coin-cell and is replaced in minutes. This is the easiest and cheapest method to solve your issue. You can purchase replacement batteries in a variety of shops and also online. After you have put the new battery in place, re-open the key fob to ensure that the battery is in the correct place and is in contact with all of the connections. Note down the position of the old battery in the circuit before you remove it. This will assist you in installing the new battery in the same manner. The majority of Hyundai smart keyfobs are equipped with CR2032 batteries, which are available at most stores or online. Close your key fob after you have installed the battery and test it. Contacts If your Hyundai key fob suddenly stopped functioning and you haven't dropped it, there may be a problem with the internal chip. The receiver module in the car uses radio frequency signals to communicate with the remote. If these signals are interfered with by nearby transmitters, or objects, the key fob may stop working properly. You should consider the Hyundai Digital key system if you're looking to unlock, lock and start your car 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 is a great feature when you give a friend a lift or leaving your vehicle for valet services. A dead battery is the primary reason for a Hyundai i20's key fob not functioning. If yours is showing indications of dying, such as slow operation or not responding at all, it's time to replace the battery. Although replacing the Hyundai keyfob's battery isn't difficult, you should be aware of a few things before beginning. Make a sketch or an outline of the way that the old battery is laid on the circuit board. This will help you place the new battery in the same spot. Water Damage The rubber seals on the key fob guard the electronic chip from water. So, if it is able to withstand the splash of water that comes from a washing machine, or even a brief immersion in light rain, it's likely to not be damaged. If you've dropped it in a pool or the ocean, then 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. This can be accomplished in a variety of ways. It can be placed in a bag along with silica packs to absorb the moisture. Or, you could make use of uncooked rice, but it's important not to touch the key fob while it's still moist because it could cause contamination to the internal components. Utilizing isopropyl alcohol or an electronic cleaner could also help in cleaning the contacts on the circuit board. If the chip is damaged it's best to accept you'll have to replace the key fob. It is easy to replace the battery in your Hyundai key fob. The process is typically not difficult. You can refer to an YouTube tutorial or your owner's manual guide you through the procedure. It's always a good idea have an extra key fob at for you in case you need to continue driving your car while you wait for the key repair to arrive. Fault Diagnosis It isn't always easy to identify the cause of a problem when your check engine light comes on and you have a fault-code. This is why an OBD diagnostic scanner is usually called an OBD 2 (or OBD 2 in the United Kingdom). These are available in Bluetooth models that connect to your phone, or standard models with a reader attached. The throttle position sensor (TPS), which is located in the i20, could be damaged. This sensor is accountable to measure the opening angle of throttle valve. This information is sent to an electronic control unit, which aids in calculating the amount of fuel needed. A problem with the throttle position sensor could result in lower engine performance, jerky acceleration, and RPM fluctuations while driving. Transmission problems are a common problem in the i20s. The transmission is a complex component with many gears that work together to transfer power from the engine to the wheels. Over time friction between gears can lead to the transmission's failure. Signs of a defective transmission include clunking or grinding sounds and an abrupt acceleration. Spark plugs are an additional area of concern for the i20. Faulty spark plugs can damage the engine because they do not deliver the correct amounts of sparks to the cylinders. A damaged spark plug could cause costly and severe engine damage if left unchecked.