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How to Fix a Problem With Your Hyundai i20 Key Fob Hyundai I20 owners can lock and unlock their vehicles remotely. They can also start their vehicle before time and monitor the functions of their key fob using a mobile app on their mobile. Occasionally the key fob can stop working. This could be caused by 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, such as locking and unlocking your doors, starting your vehicle and even triggering the panic button. It's an excellent feature for drivers to save time and effort, however it can be challenging when the system doesn't function properly. There are several things you can do when your Hyundai i20's main fob is not working properly. The first step is to check the battery. The majority of smart key fobs utilize the coin cell battery which can be replaced in a matter of minutes. This is usually the quickest and most cost-effective method to fix the problem. Replacement batteries are available in most stores or online. Once you have a new battery and you have it open, check to make sure the battery is sitting in the correct place and that it is in contact with all of the connections. Make sure to snap a photo or take a note of how the old battery was positioned on the circuit board prior to removing it. This will let you install the new battery the same way. The majority of Hyundai smart keyfobs use the CR2032 batteries, available at most stores or online. Close your key fob after installing the battery and testing it. Contacts If your Hyundai keyfob suddenly stopped working and you haven't dropped it, there may be a problem in the internal chip. The receiver module inside your car uses radio frequency signals to communicate with the remote control, so if this signals are being disrupted by nearby transmitters or objects, it could cause the key fob to cease functioning correctly. Consider the Hyundai Digital Key system if you're looking to unlock, lock and start your vehicle during your commute in Reno. The advanced keyless system operates via an app that you can install on your smartphone and allows you to share Digital Key access up to three persons. This is a great feature when you're giving someone an escort or leaving your vehicle in valet service. A dead battery is the main reason for the Hyundai i20's key fob not functioning. It's time for a new battery if it shows signs of aging like a slow operation or no response at any time. While replacing and opening the battery in your Hyundai key fob battery isn't difficult but there are some things you should know before starting. Take a photo or take a note about how the old battery is placed in the circuit board. This will allow you to put the new battery in the same location. Water Damage The rubber seals on the key fob protect the chip from water. If it can withstand a splash of water from a washing machine, or even a brief immersion in light rain it's unlikely to be damaged. However, if you've dropped it in a ocean or pool, the water can penetrate the seals and damage the circuit board, which can be expensive to repair. The first step is drying the key fob thoroughly. It is possible to do this in many ways. It can be placed in a bag with silica packs to absorb the moisture. You can also use uncooked rice however, be careful not to touch it while it's still wet. It could be contaminated by the internal components. Using isopropyl alcohol or an electronic cleaner could also be helpful in cleaning the contacts on the circuit board. If, however, the chip is damaged, it's likely that you'll require a new key fob. It's simple to change the battery on your Hyundai key fob. The procedure is generally not difficult. You can follow a YouTube tutorial or your owner's guide to guide you through the procedure. It's a good idea to have an extra key fob at for you in case you need to continue driving your vehicle while you wait for the replacement key to arrive. Fault Diagnosis It can be difficult to determine problems if your check engine light is flashing and you have a fault-code. This is the reason why a diagnostic scanner is often called an OBD 2 (or OBD 2 in the UK). They are available in Bluetooth models that connect to your phone or standard models with an attached reader to the socket. The throttle position sensor (TPS), which is located in the i20 can become defective. This sensor is responsible for determining 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 sensor can cause abrupt acceleration, erratic RPM changes and reduced engine performance. Transmission problems are a common issue with i20s. The transmission is a complex component that has many gears that mesh together to transfer power from the engine to the wheels. In time the friction between gears can cause the transmission's failure. fob key replacement near me of a defective transmission include clunking, grinding noises and an abrupt acceleration. The spark plugs of the i20 are another frequent problem area. Spark plugs that are defective can cause engine damage through not providing enough sparks to each engine. A damaged spark plug can cause costly and serious engine damage if it is not checked.