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How to Fix a Problem With Your Hyundai i20 Key Fob Hyundai I20 vehicle owners can lock and unlock their cars remotely. They can also start their vehicle in advance and monitor key fob function by using a mobile application on their smartphone. However, occasionally the key fob won't working due to some reason. It could be due to an unresponsive battery water damage, or signal interference. Battery Hyundai has developed the smart key fob for their vehicles that enables you to use a variety of remote functions including locking and unlocking doors, starting your vehicle, and even triggering the panic button. It's an excellent way to cut down on time and energy for drivers, however it can be frustrating when the system doesn't work correctly. There are a few options you can do if your Hyundai i20's key fob isn't working properly. The first step is check the battery. The majority of smart key fobs utilize a coin cell battery that can be replaced in a matter of minutes. This is usually the fastest and most affordable method to fix the issue. Replacement batteries are readily available in the majority of stores or on the internet. Once you have a new battery in place then re-open the key fob to ensure that the battery is sitting in the proper position and that it's making contact with all connections. Make sure to capture a photograph or take a note of how the old battery was positioned in the circuit board prior to taking it out it. This will allow you to install the new battery in the same manner. The majority of Hyundai smart key fobs are powered by batteries that are CR2032, which are available in many stores and on the internet. Once you have the battery in place, close up your key fob and test it to determine if it's working again. Contacts If your Hyundai key fob stopped working from the white of the night and you haven't lost it, you could be dealing with a defective internal chip. The receiver module in your car uses a radio frequency signal to communicate with the remote control, so it is possible that the signals are disrupted by nearby transmitters or objects, it could cause the key fob to not function properly. Take a look at the Hyundai Digital key system if you want to lock, unlock and start your vehicle on your way to work in Reno. This advanced keyless system works through 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 leaving your car with valet services. A dead battery is the most frequent reason for the Hyundai i20's key fob not functioning. If yours is showing signs of dying, such as slow operation or not responding at all, it's time to replace the battery. Although the process of replacing your Hyundai keyfob battery shouldn't be difficult, you must be aware of a few points before you begin. Take a photo or make notes of how the old battery is laid in the circuit board. This will help you place the new battery in the same spot. Water Damage The key fob comes with rubber seals that protect the electronic chip inside from water. So, if it survives the splash of water that comes from a washer or an evaporation in light rain it's unlikely to be damaged. If you've dropped it in 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. The first step is drying the key fob completely. hyundai i30 key replacement is possible to do this in many ways. You can place it in a bag with silica packs to absorb the moisture. You can also cook rice uncooked, but be careful not to be near it while it's still wet. It could be contaminated by its internal components. Utilizing isopropyl alcohol or an electronic cleaner may also be helpful in cleaning the contacts on the circuit board. If the chip is damaged, it's probably best to accept that you'll require a replacement key fob. It is simple to change the battery on your Hyundai key fob. The process is typically not a hassle. You can follow an YouTube tutorial or the owner's manual to guide you through the process. It's a good idea to keep an extra key fob at hand so that you can continue driving your vehicle while you wait for the repaired key to arrive. Diagnostics of a fault If your check engine light is on and an error code is visible, it can be difficult to determine the issue without the aid of a diagnostic scanner commonly called an OBD 2. They are available in Bluetooth versions which connect to your phone or standard models that have an OBD 2 reader that is connected to the socket. The throttle position sensor (TPS) located in the located in the i20 can be damaged. This sensor is responsible for determining the opening angle of the throttle valve. The information is then sent to the control unit and is used to the calculation of the amount of fuel needed. A malfunctioning throttle sensor will cause rapid acceleration that is jerky, fluctuations in RPM and a decrease in engine performance. Another issue that is common in the i20s is the malfunctioning transmission. The transmission is a complex component that has many gears that work together to transfer power from the engine to the wheels. The friction between the gears leads to wear and tear over time, which could cause the transmission to fail. The signs of a damaged transmission include clunking or grinding sounds and jerky acceleration. The spark plugs on the i20 are another common problem area. A defective plug can cause damage to engines by not sending enough sparks to every engine. If unchecked a damaged spark plug could result in serious and costly engine damage.