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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 vehicle remotely. They can also start their vehicle ahead of time and monitor the key fob's functions using an app on their smartphone.

Occasionally the key fob can stop working. This could be due to an unresponsive battery, water damage, or even signal interference.

Battery

Hyundai has created the smart key fob for their vehicles that enables you to perform a variety of remote functions, including locking and unlocking doors, launching your vehicle and even activating panic buttons. It's an ideal way to save time and energy for drivers, however it 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 a few things you can do to fix the issue.

The first step is checking the battery. The majority of smart key fobs have the coin cell battery which can be replaced in just a few minutes. This is typically the fastest and most affordable way to fix the issue. You can buy replacement batteries in many shops and also online. Re-open the keyfob after installing the new battery to ensure that the battery is in the correct position and in contact with all connections.

Be sure to take a picture or make a note of where the old battery was placed in the circuit board prior removing it. This will enable you to install the new battery in the same way. Most Hyundai smart key fobs utilize CR2032 batteries, which are sold in most shops or online. Close your key fob after you have installed the battery and testing it.

Contacts

If your Hyundai key fob suddenly stopped functioning and you weren't able to drop it, it may be a problem with the internal chip. The receiver module inside the car uses radio frequency signals to communicate with the remote. If the signals are disrupted by nearby transmitters or other objects the key fob could cease to function properly.

If you're looking for an efficient way to unlock, lock, and start your car during your Reno commute, consider the Hyundai Digital Key system. This 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 useful if you're giving a friend the opportunity to ride with you or leave your vehicle with valet services.

A dead battery is the most common cause of the Hyundai i20's key fob not working. 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 a few points before beginning. Make a sketch or note of how the old battery is placed in the circuit board. This will help you place the new battery in the same location.

Water Damage

The rubber seals on the key fob guard the electronic chip from water. If it can withstand a brief splash from a washing-machine, or repaired a brief immersion in a light rain, it's unlikely to be damaged. If you drop it into the ocean or a pool, the water could penetrate the seals, damaging the circuit board. This is an expensive repair.

The first step is to dry the key fob thoroughly. This can be done in a variety of ways. You can put it in a bag with silica bags to absorb the moisture. You could also use uncooked rice, but be careful not to contact it while it's still wet. This could contaminate the internal components.

Utilizing isopropyl alcohol or an electronic cleaner can also be helpful in cleaning the contacts on the circuit board. If the chip is fried then it's likely that you'll need a replacement key fob.

Replacing the battery on the Hyundai key fob is simple and typically not a big mess. You can follow a YouTube tutorial video to help you with the process or consult your owner's manual. It's a good idea to keep an extra key fob on hand so you can drive your vehicle while waiting for your repaired key.

Troubleshooting

If your check engine light is on and there is a fault code, it may be difficult to determine the problem without the use of a diagnostic scanner commonly referred to as an OBD 2. They are available in Bluetooth versions that connect to your phone or standard models with an attached reader to the socket.

The throttle position sensor (TPS) is located within the i20, may fail. This sensor is responsible to determine 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 needed. A malfunctioning throttle position sensor can cause a reduction in engine performance, jerky acceleration and RPM fluctuations while driving.

Another common problem found in the i20s is a faulty transmission. The transmission is a complicated component with many gears that mesh together to transfer power from the engine to wheels. In time, the friction between the gears can lead to transmission failure. Sounds of grinding or clunking as well as rapid acceleration that is jerky are signs of an inefficient gearbox.

Spark plugs are another issue for the i20. Spark plugs that are defective can cause damage to the engine by not delivering the right amount of sparks to the cylinders. A damaged spark plug could cause costly and serious engine damage if ignored.