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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 smartphone.
However, at times, the key fob might stop working for some reason. This could be due to an unresponsive battery, water damage, or signal interference.
Battery
Hyundai has created a smart key fob that is able to perform various remote functions, such as locking and unlocking your doors, launching your car and even activating the panic button. It's a wonderful feature for drivers, helping them save time and effort, but it can be challenging when the system stops working correctly. There are several things you can do if your Hyundai i20's key fob isn't working correctly.
The first step is to test the battery. Most smart key fobs use an internal battery that can be replaced in just a few minutes. This is typically the fastest and most affordable way to solve the issue. You can find replacement batteries in many stores and on the internet. Re-open the keyfob after installing the new battery to ensure that the battery is in the proper location and that it is in contact with all the connections.
Make sure to snap a photo or take a note of how the old battery was placed in the circuit board prior to taking it out it. This will help you replace the battery the same way. Most Hyundai smart key fobs utilize the CR2032 battery, which is found in many shops and on the internet. Once you have the battery in place and closed, you can close the key fob and then test it to see 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 have a problem with an internal chip. The receiver module in your vehicle uses a radio frequency signal to communicate with the remote control, therefore it is possible that the signals are interfered with by nearby transmitters or objects, it might cause the key fob to cease functioning properly.
Take a look at the Hyundai Digital Key system if you're looking to unlock, lock and start your vehicle while you commute to Reno. This innovative keyless system functions via an app on your smartphone and allows you to share Digital Key access up to three persons. This is helpful when you offer an individual a ride or when leaving your car with valet services.
The most common reason for the Hyundai i20 key fob not to function is the battery is dead. It's time to change the battery if yours shows signs of aging and is slow to operate or no response at all. While the process of replacing and opening the battery in your Hyundai key fob battery isn't a big deal but there are some things to consider prior to beginning. The first step is to take note of where the old battery is laid within the circuit board, or take a photograph. This will assist you in placing the new battery in the same spot.
Water Damage
The rubber seals on the key fob guard the electronic chip from water. So, if it is able to withstand the splash of water from a washing machine, or a brief submersion in light rain, it's not likely to be damaged. If you dropped it in the ocean or in a pool the water could get into the seals, causing damage to the circuit board. This is an expensive repair.
hyundai remotes is drying the key fob thoroughly. This can be accomplished in many ways. You can put it in a plastic bag and then cover it with silica gel packs that will draw the moisture out of it. You can also use rice that is not cooked Be careful not to contact it while it's still wet. This could lead to contamination of its internal components.
You can also clean the the circuit board by using isopropyl or electronic cleaner. If the chip is fried, it's best to accept you'll need to replace the key fob.
Replacing the battery in the Hyundai key fob is easy and usually not very messy. You can refer to a YouTube tutorial or your owner's guide to guide you through the procedure. It's a good idea keep a spare key fob so you can drive your vehicle while you wait for your repaired key.

Diagnosis of a Fault
If your check engine light comes on and there is a fault code, it may be difficult to pinpoint the issue without the help of a diagnostic scanner typically referred to as an OBD 2. These 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) located in the located in the i20, can become damaged. This sensor is responsible to measure the opening angle of the throttle valve. This information is transmitted to the control unit and is used to the calculation of the amount of fuel needed. A malfunctioning throttle sensor can cause jerky acceleration, RPM fluctuations and a reduction in engine performance.
Another common problem found in the i20s is the transmission that is defective. The transmission is a complex component with a variety of gears which mesh together to transfer power from the engine. The friction between the gears can cause wear and tear, which can cause the transmission to fail. Grinding or clunking sounds and an acceleration that is jerky can indicate an inefficient gearbox.
Spark plugs are a different aspect to be concerned about for the i20. A defective plug can cause engine damage by not delivering enough sparks to every cylinder. A damaged spark plug can cause costly and serious engine damage if it is not checked.