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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 the vehicle in advance and track key fob functions via an app for their smartphone.
However, occasionally the key fob might stop functioning due to a reason. It could be due a dead battery or water damage, or signal interference.
Battery
Hyundai has created a smart key fob that can be used to perform a variety of remote functions like locking and unlocking your doors, starting your car and even triggering the panic button. It's a great convenience for drivers and helps them save time and effort, but it can be difficult when the system isn't working properly. There are a few things you can do in the event that your Hyundai i20's primary fob is not working properly.
The first step is check the battery. Most smart key fobs make use of a coin cell battery that is easily replaced in minutes. This is usually the quickest and most cost-effective method to fix the issue. You can find replacement batteries in many shops and also online. Re-open the keyfob after installing the new battery in order to confirm that the battery is in the correct place and in contact with all the connections.
Take a picture or note the position of the battery that was removed from the circuit before removing it. This will let you replace the battery the same way. Most Hyundai smart keyfobs use the CR2032 batteries, which are available in most shops or online. Close your key fob after installing the battery and testing it.

Contacts
If your Hyundai key fob suddenly stopped working and you did not drop it, there may be a problem in the internal chip. The receiver module in your car uses a radio frequency signal to communicate with the remote control, therefore in the event that this signal is blocked by nearby transmitters or objects, it can cause the key fob to not function correctly.
Take a look at the Hyundai Digital key system if you're looking for a way to lock, unlock and start your car on your way to work in Reno. The advanced keyless system operates with an app on your smartphone. It enables you to share Digital Key access up to three persons. This is useful when you offer someone else a ride, or when leaving your car with valet services.
replacement car key hyundai i20 for a Hyundai i20 key fob to stop working is an inactive battery. It's time for a new battery if yours shows signs of age or has a slow response 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 to consider prior to starting. Take a photo or take a note about how the old battery is laid within the circuit board. This will help you put the new battery in the same location.
Water Damage
The rubber seals on the key fob shield the electronic chip from water. So, if it survives a splash of water from a washing machine, or the brief submersion of rain, it's likely to not be damaged. If you drop it into the ocean or a pool the water could get into the seals, causing damage to the circuit board. This is a costly repair.
The first step is drying the key fob thoroughly. This can be accomplished in various ways. It can be placed in a bag along with silica bags to absorb the moisture. You can also use rice that has not been cooked, but it is crucial not to contact the key fob when it's still moist because it could cause contamination to the internal components.
You can also clean the contacts of the circuit board using isopropyl or electronic cleaner. However, if the chip is damaged, it's probably best to accept that you'll need to replace the key fob.
It is easy to change the battery on your Hyundai key fob. The procedure is usually not messy. You can follow an YouTube video tutorial to help you with the procedure or consult the owner's manual. It's a great idea to keep an extra key fob on hand so you can drive your vehicle while you wait for your key to be repaired.
Fault Diagnosis
It isn't always easy to identify an issue if your check engine light is on 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 United Kingdom). These are available in Bluetooth models that connect to your phone or standard models that have readers that are connected to the socket.
The throttle position sensor (TPS) located in the located in the i20, can fail. The 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 will cause rapid acceleration that is jerky, fluctuations in RPM and a decrease in engine performance.
Transmission problems are another common issue for the i20s. The transmission is a complex component with a variety of gears that work together to transfer the power from the engine. The friction between the gears causes wear and tear, which can cause the transmission to fail. Sounds of grinding or clunking as well as jerky acceleration are symptoms of a faulty gearbox.
The spark plugs on the i20 are a different common issue area. The problem with defective spark plugs is that they can harm the engine by not delivering the right amount of sparks to each cylinder. If unchecked an unclean spark plug can cause serious and costly engine damage.