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How to Fix a Problem With Your Hyundai i20 Key Fob

Hyundai I20 owners can lock and unlock their cars remotely. They can also start their vehicle in advance and track key-fob functions through a mobile application on their smartphone.

However, occasionally the key fob will stop working due to some reason. This could be due to a dead battery or water damage, or signal interference.

Battery

Hyundai has created the smart key fob for their vehicles that enables users to perform a variety of remote functions, including locking and unlocking doors, starting your vehicle and even activating the panic button. It's an excellent way to cut down on time and energy for drivers, but it can be a hassle if the system doesn't function properly. If you're having difficulty getting your Hyundai i20 key fob to function correctly, there are several things you can do to resolve the issue.

The first thing you need to do is check the battery. Most smart key fobs use 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 problem. You can find replacement batteries in many shops and also online. Once you have a new battery in place and you have it open, check to make sure the battery is in the correct place and that it's making contact with all of the connections.

Take a picture or note the location of the battery that was removed from the circuit before taking it out. This will allow you to install the new battery in the same manner. Most Hyundai smart key fobs utilize CR2032 batteries, available in a variety of stores or online. Close hyundai remotes after installing the battery, and then test it.

Contacts

If your Hyundai key fob stopped working completely out of the blue and you haven't dropped it, you could be experiencing a malfunctioning internal chip. The receiver module in your vehicle utilizes radio frequency signals to communicate with the remote control, so if this signals are being disrupted by nearby transmitters or objects, it can cause the key fob to cease functioning properly.

If you're looking for an efficient way to unlock, lock and start your vehicle during your Reno commute, look into the Hyundai Digital Key system. This advanced keyless system operates via an app that you can install on your smartphone. It enables you to share Digital Key access up to three persons. This is useful if you're giving someone a lift or leaving your vehicle for valet services.

A dead battery is the primary cause of an Hyundai i20's key fob not working. If yours is displaying indications of dying, such as slow operation or not responding at all, it's time to replace the battery. While replacing and opening your Hyundai key fob battery shouldn't be difficult however there are a few things to know prior to beginning. First, take note of where the old battery sits on the circuit board or snap a picture. This will allow you to place the new battery in the same spot.

Water Damage

The rubber seals on the key fob protect the chip from water. So, if it survives the splash of water from a washing machine, or the brief submersion of rain, it's not likely to be damaged. If you drop it in the pool or ocean then the water could get into the seals and cause damage to the circuit board, which can be expensive to repair.

The first step is to dry the key fob thoroughly. You can do this in a variety of ways. You can put it in a bag along with silica bags to absorb the moisture. You can also cook rice uncooked however, be careful not to be near it while it's still wet. This could lead to contamination of its internal components.

You can also clean the the circuit board with isopropyl or electronic cleaner. If the chip has gone bad it is best to accept that you'll need to replace the key fob.

Replacing the battery on the Hyundai key fob is simple and usually not very messy. You can follow a YouTube video tutorial to assist you with the procedure or consult your owner's manual. It's a great idea keep a spare key fob so you can drive around in your vehicle while you wait for the repaired key.

Fault Diagnosis

If your check engine light is on and the fault code is present, it may be difficult to identify the issue without the help of a diagnostic scanner, often referred to as an OBD 2. They are available in Bluetooth versions which connect to your phone or standard models that have a reader attached to the socket.

One of the most common issues with i20s is the throttle position sensor (TPS) is damaged. The sensor is used to measure 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 sensor will cause jerky acceleration, RPM fluctuations and reduced engine performance.

Another problem that is frequently found in the i20s is a faulty transmission. The transmission is a complicated component with many gears that interlock to transfer power from the engine to wheels. The friction between the gears can cause wear and tear over time, which could cause the transmission to fail. Clanging or grinding sounds as well as jerky acceleration are symptoms of an unreliable gearbox.

The spark plugs inside the i20 are another frequent problem area. The problem with defective spark plugs is that they can harm the engine by not delivering the correct amounts of sparks to each cylinder. If unchecked the damaged spark plug can result in severe and costly engine damage.