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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 vehicle remotely. They can also start their vehicle in advance and monitor the functions of their key fob via a mobile app on their smartphones. However, occasionally the key fob won't functioning for a reason. This could be due to a dead battery or water damage, or even signal interference. Battery Hyundai has developed a smart key fob that can be used to perform various remote functions, including locking and unlocking your doors, starting your car and even activating the panic button. It's an excellent feature for drivers that helps them save time and effort, but it can be a hassle if the system ceases to function properly. There are a few things you can do in the event that your Hyundai i20's primary fob isn't working correctly. The first thing you need to do is check the battery. The majority of smart key fobs utilize an internal battery that can be replaced in just a few minutes. This is the most efficient and cheapest method to solve your issue. Batteries for replacement are available at many stores or online. Re-open the keyfob after installing the new battery to ensure that the battery is in the right place and in contact with all connections. Take a picture or note the position of the old battery in the circuit before taking it out. This will help you replace the battery the same way. Most Hyundai smart key fobs use a CR2032 battery which is sold in a variety of shops and online. Close your key fob after installing the battery and testing it. Contacts If your Hyundai key fob stopped working completely out of the blue and you haven't dropped it, you may be experiencing a malfunctioning internal chip. The receiver module in your car uses radio frequency signals to communicate with the remote control, therefore when this signal is interfered with by nearby transmitters or objects, it might cause the key fob to stop functioning properly. You should consider the Hyundai Digital key system if your goal is to lock, unlock, and start your car on your way to work in Reno. This advanced keyless system works with an app on your smartphone, allowing you to share Digital Key access up to three persons. This can be useful for giving your friend a ride when you leave your car with valet services. The most frequent reason for a Hyundai i20 key fob to stop working is a dead battery. It's time for a new battery if the one you have is showing signs of age like a slow operation or no response at all. Although the process of replacing the Hyundai keyfob battery isn't difficult, you should be aware of certain things prior to starting. First, take note of where the old battery is laid on the circuit board. You can also take a photo. hyundai ignition key replacement will assist you in placing the new battery in the same spot. Water Damage The rubber seals on the key fob shield the electronic chip from water. So, if it survives the splash of water that comes from a washer or the brief submersion of rain it's unlikely to be damaged. If you've dropped it in the pool or the ocean, then the water could get into the seals and damage the circuit board, which can be costly to repair. The first step is to dry the key fob completely. It is possible to do this in a variety of ways. You can place it in a bag along with silica packs to absorb the moisture. Or, you could make use of rice that isn't cooked but it's crucial not to touch the key fob while it's still wet as this could contaminate the internal components. The use of isopropyl alcohol, or an electronic cleaner may also help in cleaning the contacts on the circuit board. If the chip is fried then it's probably best to accept that you'll require a replacement key fob. It's easy to change the battery on your Hyundai key fob. The procedure is usually not a hassle. You can refer to an YouTube tutorial or your owner's guide to guide you through the procedure. It's a good idea to keep a spare key fob on for you in case you need to continue driving your car while you wait for the repair key to arrive. Troubleshooting It can be difficult to diagnose problems if your check engine light is flashing and you have a fault-code. This is the reason why the diagnostic scanner is typically called an OBD 2 (or OBD 2 in the UK). They are available in Bluetooth versions which connect to your phone or standard models with a reader attached to the socket. One of the most frequent issues with i20s can be that the throttle position sensor (TPS) is damaged. This sensor is responsible for measuring 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 required. A malfunctioning throttle position sensor could cause a reduction in engine performance, jerky acceleration and RPM fluctuations during driving. Transmission problems are a common issue with i20s. The transmission is a complex component that contains a number of gears which mesh together to transfer power from the engine. In time friction between gears can lead to the transmission's failure. The signs of a damaged transmission include clunking or grinding sounds and an abrupt acceleration. Spark plugs are a different issue for the i20. The problem with the plugs is that they can cause engine damage through not giving enough sparks to each cylinder. If left unchecked a damaged spark plug could result in serious and expensive engine damage.