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How to Fix a Problem With Your Hyundai i20 Key Fob Hyundai i20 owners can to lock and unlock their cars remotely. They can also start their vehicle before time and monitor key fob functions via a mobile app on their smartphone. However, occasionally the key fob might stop working for some reason. This could be due an unresponsive battery water damage, or signal interference. Battery Hyundai has created the smart key fob for their vehicles. It allows users to perform a variety of remote functions including locking and unlocking doors, launching your vehicle and triggering an emergency button. It's a great convenience for drivers that helps them save time and effort, but it can be a challenge when the system doesn't function properly. If you're experiencing difficulty getting your Hyundai i20 key fob to function correctly There are several options you can try to fix the problem. The first thing to do is to check the battery. Most smart key fobs are powered by a coin-cell, which can be easily replaced within minutes. This is usually the quickest and most affordable way to solve the issue. Replacement batteries are readily available in the majority of stores or on the internet. Once you have a new battery in place open the key fob to ensure that the battery is sitting in the proper position and is in contact with all connections. Take a picture or note the position of the old battery in the circuit before removing it. hyundai car keys will help you install the new battery in the same way. The majority of Hyundai smart key fobs are powered by the CR2032 battery, which is sold in a variety of shops and online. Once you have the battery in place, close up your key fob, and then test it to see if it's working again. Contacts If your Hyundai key fob stopped working completely out of the white of the night and you haven't lost it, you may have a problem with an internal chip. The receiver module inside the car uses radio frequency signals to communicate with the remote. If the signals are disrupted by nearby transmitters or objects, the key fob may not function properly. If you're looking for an efficient method to lock, unlock and start your car during your Reno commute, consider the Hyundai Digital Key system. This advanced keyless entry system is operated via an app for smartphones that lets you share Digital Key access with up to three others. This can be useful when giving an individual a ride or when leaving your car with valet services. A dead battery is the most common cause of an Hyundai i20's key fob not functioning. It's time for a new battery if it shows signs of age like a slow operation or no response at all. While replacing the Hyundai keyfob battery shouldn't be difficult, you must be aware of a few points prior to beginning. Take a picture or make notes of how the old battery is placed inside the circuit board. This will assist you in placing the new battery in the same spot. Water Damage The rubber seals on the key fob guard the electronic chip from water. If it survives a quick splash from a washing machine or an a short immersion in a light rain it's unlikely to be damaged. However, if you've dropped it into the pool or in the ocean, the water may get through the seals and cause damage to the circuit board, which can be costly to repair. The first step is to dry the key fob thoroughly. This can be done in many ways. You can put it in a bag with silica bags to absorb the moisture. You can also use uncooked rice but it's crucial not to contact the key fob when it's still damp as it could cause contamination to the internal components. The use of isopropyl alcohol, or an electronic cleaner can also be helpful in cleaning the contacts on the circuit board. If the chip is fried and you suspect it, you'll need to replace the key fob. Replacing the battery on the Hyundai key fob is simple and usually not messy. You can refer to a YouTube tutorial or the owner's manual to guide you through the process. It is a good idea to keep a spare key fob on for you in case you need to continue driving your vehicle while waiting for the repaired key to arrive. Diagnostics of a fault It can be difficult to determine an issue if your check engine light is on and you have a fault-code. This is why a diagnostic scanner is often called an OBD 2 (or OBD 2 in the United Kingdom). They are available in Bluetooth versions that connect to phones or standard models that have a reader attached to the socket. One of the most frequent problems with i20s is the throttle position sensor (TPS) becomes defective. This sensor is used to measure the opening angle of the throttle valve. This information is sent to the control unit and is used to the calculation of the amount of fuel required. A problem with the throttle position sensor could result in a decrease in engine performance, jerky acceleration and RPM fluctuations while driving. Transmission problems are another common problem in the i20s. The transmission is a complicated part with a variety of gears that work together to transfer power from the engine to wheels. The friction between the gears can cause wear and tear, which can cause the transmission to fail. Signs of a malfunctioning transmission include grinding or clunking noises and an abrupt acceleration. The spark plugs in the i20 are a second common problem area. Faulty spark plugs can damage the engine because they do not deliver the right amount of sparks to every cylinder. If they are not checked a damaged spark plug can cause serious and expensive engine damage.