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How to Fix a Problem With Your Hyundai i20 Key Fob Hyundai i20 owners can to lock and unlock their vehicle remotely. They can also start their vehicle in advance and track key-fob functionality using an app for their smartphone. However, at times, the key fob may stop functioning for a reason. This could be caused by a dead battery, water damage, or even signal interference. Battery Hyundai has developed the smart key fob for their vehicles, which allows you to perform a variety of remote-controlled functions, such as locking and unlocking doors, starting your vehicle and even activating the panic button. It's a fantastic feature for drivers and helps them save time and effort, however it can be a challenge when the system stops working correctly. If you're struggling to get your Hyundai i20 key fob to work properly There are a variety of things you can try to resolve the issue. The first step is to examine the battery. Most smart key fobs use the coin cell battery which can be replaced in just a few minutes. This is usually the quickest and most affordable way to fix the issue. You can buy replacement batteries at most stores as well as online. Re-open the keyfob after installing the new battery to verify that the battery is in the proper position and is in contact with all the connections. Take a photo or note the position of the old battery in the circuit before you remove it. This will help you install the new battery in the same manner. The majority of Hyundai smart key fobs are powered by a CR2032 battery which is sold in a variety of shops and online. Once you have the battery in place shut down your key fob, and then test it to determine if it's working again. Contacts If your Hyundai key fob suddenly stopped working and you didn't drop it, there could be a problem with the internal chip. The receiver module in your car uses radio frequency signals to communicate with the remote control, therefore when this signal is affected by nearby transmitters or objects, it might cause the key fob's functionality to cease properly. If you're looking to find a clever way to unlock, lock and start your car during your Reno commute, consider the Hyundai Digital Key system. This innovative keyless entry system works with a smartphone app and lets you share Digital Key access with up to three additional people. This can be helpful when you offer a friend a ride or when you leave your car with valet services. The most frequent reason for the Hyundai i20 key fob not to function is an inactive battery. It's time to change the battery if it is showing signs of age and is slow to operate or no response at any time. While the process of replacing and opening your Hyundai key fob battery shouldn't be difficult but there are a few things to consider prior to beginning. First, make a note of how the old battery sits within the circuit board, or take a photograph. This will help you put the new battery in the same location. Water Damage The rubber seals on the fob's key seal the chip from water. If it can withstand the splash of water that comes from a washing machine or the brief submersion of rain it's unlikely to be damaged. However, if you drop it in the pool or ocean then the water could penetrate the seals and cause damage to the circuit board, which can be 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 plastic bag with silica gel packets which will draw the moisture out of it. You can also use uncooked rice However, be cautious not to contact it while it's still damp. This could contaminate its 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 it's best to accept you'll need to replace the key fob. Replacing the battery on the Hyundai key fob is easy and usually not very messy. You can follow a YouTube video tutorial to help you along the way or refer to your owner's manual. It's a great idea keep a spare key fob so you can use your vehicle while you wait for your repaired key. Diagnosis of a Fault It can be difficult to diagnose the cause of a problem when your check engine light comes on and you have a fault code. This is why the diagnostic scanner is commonly known as 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 an attached reader. One of the most common problems with i20s is that the throttle position sensor (TPS) becomes defective. This sensor is responsible for measuring the opening angle of the throttle valve. This information is sent to the control unit, and contributes to the calculation of the amount of fuel needed. A damaged throttle sensor can result in abrupt acceleration, erratic RPM changes and decreased engine performance. Another problem that is frequently found in the i20s is the transmission that is defective. The transmission is a complicated component that contains a number of gears which mesh together to transfer power from the engine. In car key near me between the gears can cause the transmission's failure. Signs of a defective transmission include clunking, grinding noises and rapid acceleration that is jerky. 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 the damaged spark plug can result in severe and costly engine damage.