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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. 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 due to a reason. This could be caused by a dead battery, water damage, or even signal interference. Battery Hyundai has created a smart key fob that can be used to perform various remote functions like locking and unlocking your doors, starting your vehicle and even triggering the panic button. It's a great way to save time and energy for drivers, but can be frustrating when the system isn't working properly. If you're experiencing difficulty getting your Hyundai i20 key fob to function properly There are several options you can do to solve the issue. The first step is checking the battery. The majority of smart key fobs are powered by a coin-cell battery, which can be easily replaced within minutes. This is typically the fastest and most affordable method to solve the issue. Replacement batteries are available in many stores or online. Re-open the keyfob after installing the new battery to verify that the battery is in the proper place and in contact with all connections. Note down the location of the old battery in the circuit before you remove it. This will let you install the new battery in the same way. Most Hyundai smart key fobs have a CR2032 battery which is available in most shops and online. Once you have the battery in place shut down your key fob and check to see if it's working again. Contacts If your Hyundai keyfob suddenly stopped working and you did not drop it, there might be a problem with the internal chip. The receiver module in the car utilizes radio frequency signals to communicate with the remote. If these signals are interfered with by nearby transmitters, or other objects, the key fob may stop working properly. Think about the Hyundai Digital Key system if you're looking for a way to lock, unlock and start your vehicle while you commute to Reno. This advanced keyless system operates through an app on your smartphone. It allows you to share Digital Key access up to three persons. This is useful if you are giving a friend a lift or leaving your vehicle with valet service. The most common reason for the Hyundai i20 key fob to stop working is the battery is dead. If yours is showing signs of dying, like slow operation or not responding at all, it's time to replace the battery. Although replacing your Hyundai keyfob battery isn't difficult, you should be aware of some things prior to starting. Take a picture or make note of how the old battery is placed on the circuit board. This will enable you to place the new battery in the same place. Water Damage The rubber seals on the fob's key seal the chip from water. If it can withstand a brief splash from a washing-machine or an unintentional dip in a light rain, it's unlikely to get damaged. If you've dropped it into the pool or ocean then the water could get into the seals and cause damage to the circuit board, which can be costly to repair. hyundai i30 replacement key is to dry the key fob thoroughly. This can be accomplished in a variety of ways. You can put it in a plastic bag with silica gel bags that will draw the moisture out of it. Alternatively, you can use rice that has not been cooked, but it is important not to touch the key fob while it's still moist because this could contaminate the internal components. You can also clean the contacts of the circuit board using isopropyl or electronic cleaner. If the chip is damaged and you suspect it, you'll have to replace the key fob. It's simple to change the battery on your Hyundai key fob. The procedure is generally not messy. You can follow a YouTube video tutorial to assist you with the process or consult the owner's manual. It's a good idea have an extra key fob on hand so that you can continue driving your vehicle while you wait for the replacement key to arrive. Fault Diagnosis If your check engine light is on and an error code is visible, it can be difficult to identify the problem without the use of a diagnostic scanner, often referred to as an OBD 2. These can be purchased in Bluetooth models that connect to your phone, or standard models with an OBD 2 reader. The throttle position sensor (TPS) is located in the i20, can be damaged. The sensor is responsible for determining the opening angle of the throttle valve. This information is passed to the control unit and contributes to the calculation of the amount of fuel required. A malfunctioning throttle sensor can cause sudden acceleration, RPM fluctuations and a reduction in engine performance. Transmission problems are a common problem in the i20s. The transmission is a complex component with a variety of gears that work together to transfer power from the engine. As time passes, the friction between the gears can cause the transmission's failure. Signs of a defective transmission include clunking or grinding sounds and an abrupt acceleration. The spark plugs inside the i20 are a second common problem area. A defective spark plug can damage the engine because they do not deliver the correct amounts of sparks to the cylinders. If left unchecked an unclean spark plug could cause serious and expensive engine damage.