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How to Fix a Problem With Your Hyundai i20 Key Fob Hyundai I20 owners can lock and unlock their cars remotely. They can also start their vehicle prior to time and monitor the functions of their key fob through a mobile application on their smartphone. However, at times, the key fob won't working due to some reason. This could be due to the battery being dead or water damage, or signal interference. Battery Hyundai has created a smart key fob that is able to perform various remote functions, such as locking and unlocking your doors, starting your vehicle and even triggering the panic button. It's a wonderful feature for drivers and helps them save time and effort, however it can be challenging when the system stops working correctly. If you're having difficulty getting your Hyundai i20 key fob to perform as it should there are a few things you can try to fix the problem. The first thing you need to do is check the battery. Most smart key fobs use an internal battery that is replaced in minutes. This is usually the quickest and most cost-effective method to solve the issue. You can purchase replacement batteries in most stores and on the internet. Once you have a new battery open the key fob to ensure that the battery is sitting in the proper position and is in contact with all of the connections. Note down the position of the battery that was removed from the circuit before taking it out. This will assist you in installing the new battery in the same manner. The majority of Hyundai smart key fobs have batteries that are CR2032, which are found in many shops and online. Once you have the battery in place shut down your key fob and test it to see if it's working again. 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 in your vehicle uses a radio frequency signal to communicate with the remote control, therefore if this signals are being disrupted by nearby transmitters or objects, it can cause the key fob to stop functioning properly. Consider the Hyundai Digital Key system if you're looking for a way to lock, unlock and start your car during your commute in Reno. The advanced keyless system operates through an app on your smartphone and allows you to share Digital Key access up to three persons. This can be useful when offering your friend a ride when leaving your car with valet services. A dead battery is the main reason for the Hyundai i20's key fob not working. If yours is displaying signs of dying, such as slow operation or not responding at all, it's time to replace the battery. While replacing your Hyundai keyfob's battery isn't difficult, you must be aware of a few points prior to beginning. The first step is to take note of how the old battery is placed on the circuit board or take a photograph. This will help you place the new battery in the same place. Water Damage The key fob has rubber seals to shield the chip's electronics from water. If it is able to survive a quick splash from a washing machine, or a brief immersion in light rain, it is unlikely to be damaged. If you drop it into the ocean or in a pool the water could get into the seals, damaging the circuit board. This is a costly repair. The first step is to dry the key fob completely. It is possible to do this in many ways. You can place it in a bag with silica packs to absorb the moisture. Alternatively, you can use rice that has not been cooked, but it is crucial not to touch the key fob while it's still wet, as it could cause contamination to 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 need to replace the key fob. Replacing the battery on the Hyundai key fob is simple and usually not very messy. You can follow a YouTube tutorial or your owner's guide to guide you through the procedure. It is a good idea to have an extra key fob in your side so that you can continue to drive your car while you wait for the repair key to arrive. hyundai i30 replacement key of a fault If your check engine light is on and an error code is visible, it may be difficult to identify the issue without the aid of a diagnostic scanner, commonly called an OBD 2. These are available in Bluetooth models which connect to your phone or standard models that have readers that are connected to the socket. The throttle position sensor (TPS), which is located within the i20, may become damaged. This sensor is used to determine the opening angle of the throttle valve. This information is transmitted to the control unit and contributes to the calculation of the amount of fuel needed. A malfunctioning throttle position sensor could cause a reduction in engine performance, jerky acceleration and RPM fluctuations while driving. Another issue common to i20s is the faulty transmission. The transmission is a complex component that has many gears that work together to transfer power from the engine. The friction between the gears leads to wear and tear, which can cause the transmission to fail. Grinding or clunking sounds and rapid acceleration that is jerky are signs of a faulty gearbox. The spark plugs on the i20 are a different common issue area. Faulty plugs can cause engine damage through not providing enough sparks to each cylinder. If left unchecked a damaged spark plug could result in serious and costly engine damage.